Per 
SCP-XXXX at resting depth. Note the distortion of the photograph caused by high radiation levels.
Item #: SCP-XXXX
Object Class: Keter
Special Containment Procedures: A 600 km2 perimeter is maintained around SCP-XXXX. The perimeter is divided into three zones: the outer “Green Zone”, the 200 km2 “Yellow Zone”, and the inner 50 km2 “Red Zone”. Unauthorized vessels entering the Green Zone are to be redirected under the cover story of an ongoing ecological study in the area.
All staff manning vessels within the Yellow and Red Zones are to wear electronic personal dosimeters at all times. Staff within the Yellow Zone should not receive a yearly whole body effective dose in excess of 5 rem. Persons who exceed this dose should be rotated out within 1 week. Radiation levels exceeding 10 rem/h necessitate an immediate evacuation to the outer Green Zone, followed by medical evaluation of effected staff.
The SCPS Geiger is the only vessel authorized to enter the Red Zone. SCPS Geiger is equipped with extensive radiation shielding and monitors, as well as a fleet of unmanned submersibles capable of emergency repairs. MTF Eta-12 “Flash Bangers” are the primary personnel involved in the containment and study of SCP-XXXX. MTF Eta-12 consists of two separate containment teams that rotate between manning the SCPS Geiger on a 6 month basis. Personnel should not exceed a dose of 5 rem during their rotation. A short term dose of 25 rem is allowable during emergency procedures and is to be followed by evacuation and medical assessment. Levels of 50 rem/h necessitate immediate evacuation of all personnel into the Green Zone.
Should SCP-XXXX show signs of reentering an active state, protocol VELA will be activated. During protocol VELA, all vessels aside from the SCPS Geiger immediately evacuate from the containment area. SCPS Geiger will deploy its cache of boron control rods into and around SCP-XXXX as well as its fleet of unmanned remote monitoring vessels. Upon completion of these operations SCPS Geiger will evacuate the containment area. The perimeter is to remain closed to all vessels until SCP-XXXX exits its active state. Protocol VELA has yet to be implemented in the field.
Description: SCP-XXXX is a large deep-sea organism that measures approximately 110 meters in length and resides at a depth of 7000 meters or more. SCP-XXXX is lined with numerous bioluminescent sacs composed of a material seemingly identical to silicon dioxide, though the material has shown resistance to pressure and heat under testing far beyond what would be expected of the compound. The subject’s abdomen appears to be composed of the same substance and is filled with thousands of opaque, spherical objects. Confirmation of the composition of SCP-XXXX’s abdomen as well as the purpose of the objects within has proven impossible, as SCP-XXXX has violently destroyed all vessels or persons attempting to extract samples.
SCP-XXXX produces light via Cherenkov radiation through an unknown nuclear reaction which takes place within its sacs. Exact identification of this process has proven to be so far impossible, as the extreme amounts of gamma and neutron radiation given off by SCP-XXXX prevents direct observation and causes severe degradation to numerous types of equipment. Additionally, attempts to drill beyond the outer layer of the bioluminescent sacs results in SCP-XXXX releasing large amounts of viscous slime from several glands located behind its head. These excretions contain several highly radioactive isotopes. Due to the extreme contamination hazard posed by this substance further attempts to extract samples from SCP-XXXX’s bioluminescent sacs have been suspended.
SCP-XXXX is largely immobile, possessing only vestigial fins for propulsion. It is, however, capable of horizontal movement through manipulation of its buoyancy via unknown means. The creature’s diet or if it even requires external nutrition is unknown, as it has never been observed feeding or producing waste. The internal structure of SCP-XXXX is unknown due to the effects of strong radiation on imaging devices.
SCP-XXXX is capable of entering an “active” state during which it ascends to the surface and greatly increases its radiation output. SCP-XXXX then emits two bright flashes within milliseconds of one another before returning to its inactive state. This active event has only been recorded once by the [REDACTED] satellite on ██/██19██, after which SCP-XXXX became known to the Foundation.
On ██/██/20██ a Foundation satellite captured a strong radiological signal coming from around the - star cluster. The signal was followed by a distinctive double flash signature, confirming its link to SCP-XXXX and causing it to be designated SCP-XXXX-1. SCP-XXX-1 is currently approaching earth varying between speeds of 120 to 150 km/s and is projected to enter the atmosphere in ██/██/21██.
SCP-XXXX-1 is to be prevented from entering the atmosphere at all costs. A satellite system to neutralize SCP-XXXX-1 is currently under construction and is projected to be fully operational by 20██. The system consists of weapons designed to attach to and repel SCP-XXXX-1 in the event that a method of full neutralization is not completed in time. Due to the nature of SCP-XXXX and SCP-XXXX-1, no radiological weapons are authorized for use in their containment.
SCP-XXXX at resting depth. Note the distortion of the photograph caused by high radiation levels.
Item #: SCP-XXXX
Object Class: Keter
Special Containment Procedures: A 600 km2 perimeter is maintained around SCP-XXXX. The perimeter is divided into three zones: the outer “Green Zone”, the 200 km2 “Yellow Zone”, and the inner 50 km2 “Red Zone”. Detailed protocols regarding these designations are listed below.
Green Zone: Only Foundation operated vessels are permitted within the perimeter. Unauthorized vessels entering the Green Zone are to be redirected under the cover story of an ongoing ecological study in the area. Green Zone vessels are required to obtain authorization prior to entering the Yellow Zone.
Yellow Zone: All staff manning vessels within the Yellow Zone are to wear electronic personal dosimeters at all times. Staff within the Yellow Zone should not receive a yearly whole-body effective dose in excess of 5 rem. Persons who exceed this dose should be rotated out within 1 week. Radiation levels exceeding 10 rem/h necessitate an immediate evacuation to the outer Green Zone, followed by medical evaluation of effected staff.
Red Zone: The SCPS Geiger is the only vessel authorized to enter the Red Zone. SCPS Geiger is equipped with extensive radiation shielding and monitors, as well as a fleet of unmanned submersibles capable of emergency repairs. MTF Eta-12 “Flash Bangers” are the primary personnel involved in the containment and study of SCP-XXXX. MTF Eta-12 consists of two separate containment teams that rotate between manning the SCPS Geiger on a 6 month basis. All staff manning the SCPS Geiger are to wear their personal electronic dosimeters at all times. Personnel should not exceed a dose of 5 rem during their rotation. A short term dose of 25 rem is allowable during emergency procedures and is to be followed by evacuation and medical assessment. Levels of 50 rem/h or greater necessitate immediate evacuation of all personnel into the Green Zone.
Should SCP-XXXX show signs of reentering an active state, protocol VELA will be activated. During protocol VELA, all vessels aside from the SCPS Geiger immediately evacuate from the containment area. SCPS Geiger will deploy its cache of boron control rods into and around SCP-XXXX as well as its fleet of unmanned remote monitoring vessels. Upon completion of these operations SCPS Geiger will evacuate the containment area. The perimeter is to remain closed to all vessels until SCP-XXXX exits its active state. Protocol VELA has yet to be implemented in the field.
Description: SCP-XXXX is a large deep-sea organism that measures approximately 110 meters in length and resides at a depth of 7000 meters or more. SCP-XXXX is lined with numerous bioluminescent sacs composed of a material seemingly identical to silicon dioxide, though the material has shown resistance to pressure and heat under testing far beyond what would be expected of the compound. The subject’s abdomen appears to be composed of the same substance and is filled with thousands of opaque, spherical objects. Confirmation of the composition of SCP-XXXX’s abdomen as well as the purpose of the objects within has proven impossible, as SCP-XXXX has violently destroyed all vessels or persons attempting to extract samples.
SCP-XXXX produces light via Cherenkov radiation through an unknown nuclear reaction which takes place within its sacs. Exact identification of this process has proven to be so far impossible, as the extreme amounts of gamma and neutron radiation given off by SCP-XXXX prevents direct observation and causes severe degradation to numerous types of equipment. Additionally, attempts to drill beyond the outer layer of the bioluminescent sacs results in SCP-XXXX releasing large amounts of viscous slime from several glands located behind its head. These excretions contain several highly radioactive isotopes. Due to the extreme contamination hazard posed by this substance further attempts to extract samples from SCP-XXXX’s bioluminescent sacs have been suspended.
SCP-XXXX is largely immobile, possessing only vestigial fins for propulsion. It is, however, capable of horizontal movement through manipulation of its buoyancy via unknown means. The creature’s diet or if it even requires external nutrition is unknown, as it has never been observed feeding or producing waste. The internal structure of SCP-XXXX is unknown due to the effects of strong radiation on imaging devices.
SCP-XXXX is capable of entering an “active” state during which it ascends to the surface and greatly increases its radiation output. SCP-XXXX then emits two bright flashes within milliseconds of one another before returning to its inactive state. This active event has only been recorded once by the [REDACTED] satellite on ██/██19██, after which SCP-XXXX became known to the Foundation.
On ██/██/20██ a Foundation satellite captured a strong radiological signal coming from around the ██████ star cluster. The signal was followed by a distinctive double flash signature, confirming its link to SCP-XXXX and causing it to be designated SCP-XXXX-1. SCP-XXX-1 is currently approaching earth varying between speeds of 120 to 150 km/s and is projected to enter the atmosphere in ██/██/21██.
Following the response from SCP-XXXX-1, SCP-XXXX has entered a period of heightened activity. The entity has begun creating a structure composed of the viscous fluid formerly only excreted in response to stress. This fluid hardens into a vitreous substance, despite having never displayed this property under laboratory conditions. SCP-XXXX has also displayed heightened aggression, displaying defensive behaviors towards the SCPS Geiger when the vessel is within approximately 5 km of the entity. As of ██/██/20██, requests to expand the inner Red Zone from 30 km2 to 50 km2 have been granted, and the rotation period for personnel aboard the SCPS Geiger has been lessened to 6 months.
SCP-XXXX-1 is to be prevented from entering the atmosphere at all costs. A satellite system to neutralize SCP-XXXX-1 is currently under construction and is projected to be fully operational by 20██. The system consists of weapons designed to attach to and repel SCP-XXXX-1 in the event that a method of full neutralization is not completed in time. Due to the nature of SCP-XXXX and SCP-XXXX-1, no radiological weapons are authorized for use in their containment.
Detailed imaging of the surrounding seafloor has revealed an ancient structure similar in composition to the mucosal secretions of SCP-XXXX. The structure is a large oblong impression surrounded by a ridge of the vitreous hardened mucus measuring 230 m by 120 m. Comparison of the isotopes in the substance with those contained within fresh samples has dated the structure to approximately 3 million years old. Several severely degraded samples of silicon dioxide were obtained from within the impression and proved to possess the same anomalous properties under testing as those obtained from SCP-XXXX.
Fossil fragments were also recovered from within the area but proved to be too fragmented to confirm the species, though they were carbon dated to within the same period as the structure and were recovered from within the same strata layer. Limited reconstruction posited that the deceased creature was approximately 20 m in length and had a skeletal structure composed of cartilage. Samples from above the fossil layer indicated minor deposits of isotopes only common to SCP-XXXX. During excavation of the area SCP-XXXX appeared to become agitated and moved approximately 6km towards the site before returning to its original position.
SCP-XXXX at resting depth. Note the distortion of the photograph caused by high radiation levels.
Item #: SCP-XXXX
Object Class: Keter
Special Containment Procedures: A 600 km2 perimeter is maintained around SCP-XXXX. The perimeter is divided into three zones: the outer “Green Zone”, the 200 km2 “Yellow Zone”, and the inner 50 km2 “Red Zone”. Detailed protocols regarding these designations are listed below.
Green Zone: Only Foundation operated vessels are permitted within the perimeter. Unauthorized vessels entering the Green Zone are to be redirected under the cover story of an ongoing ecological study in the area. Green Zone vessels are required to obtain authorization prior to entering the Yellow Zone.
Yellow Zone: All staff manning vessels within the Yellow Zone are to wear electronic personal dosimeters at all times. Staff within the Yellow Zone should not receive a yearly whole-body effective dose in excess of 5 rem. Persons who exceed this dose should be rotated out within 1 week. Radiation levels exceeding 10 rem/h necessitate an immediate evacuation to the outer Green Zone, followed by medical evaluation of effected staff.
Red Zone: The SCPS Geiger is the only vessel authorized to enter the Red Zone. SCPS Geiger is equipped with extensive radiation shielding and monitors, as well as a fleet of unmanned submersibles capable of emergency repairs. MTF Eta-12 “Flash Bangers” are the primary personnel involved in the containment and study of SCP-XXXX. MTF Eta-12 consists of two separate containment teams that rotate between manning the SCPS Geiger on a 6-month basis. All staff manning the SCPS Geiger are to wear their personal electronic dosimeters at all times. Personnel should not exceed a dose of 5 rem during their rotation. A short-term dose of 25 rem is allowable during emergency procedures and is to be followed by evacuation and medical assessment. Levels of 50 rem/h or greater necessitate immediate evacuation of all personnel into the Green Zone.
Should SCP-XXXX show signs of reentering an active state, protocol VELA will be activated. During protocol VELA, all vessels aside from the SCPS Geiger immediately evacuate from the containment area. SCPS Geiger will deploy its cache of boron control rods into and around SCP-XXXX as well as its fleet of unmanned remote monitoring vessels. Upon completion of these operations SCPS Geiger will evacuate the containment area. The perimeter is to remain closed to all vessels until SCP-XXXX exits its active state. Protocol VELA has yet to be implemented in the field.
SCP-XXXX-1 is to be prevented from entering the atmosphere at all costs. A satellite system to neutralize SCP-XXXX-1 is currently under construction and is projected to be fully operational by 20██. The system consists of weapons designed to attach to and repel SCP-XXXX-1 in the event that a method of full neutralization or containment is not completed in time. Due to the nature of SCP-XXXX and SCP-XXXX-1, no radiological weapons are authorized for use in their containment.
Description: SCP-XXXX is a large deep-sea organism that measures approximately 110 meters in length and resides at a depth of 7000 meters or more. SCP-XXXX is lined with numerous bioluminescent sacs composed of a material superficially identical to silicon dioxide, though the material has shown resistance to pressure and heat under testing far beyond what would be expected of the compound. The subject’s abdomen appears to be composed of the same substance and is filled with thousands of opaque, spherical objects. Confirmation of the composition of SCP-XXXX’s abdomen as well as the purpose of the objects within has proven impossible, as SCP-XXXX has violently destroyed all vessels or persons attempting to extract samples.
SCP-XXXX produces light via Cherenkov radiation through an unknown nuclear reaction which takes place within its sacs. Exact identification of this process has proven to be so far impossible, as the extreme amounts of gamma and neutron radiation given off by SCP-XXXX prevents direct observation and causes severe degradation to numerous types of equipment. Additionally, attempts to drill beyond the outer layer of the bioluminescent sacs results in SCP-XXXX releasing large amounts of viscous slime from several glands located behind its head. These excretions contain several highly radioactive isotopes. Due to the extreme contamination hazard posed by this substance further attempts to extract samples from SCP-XXXX’s bioluminescent sacs have been suspended.
SCP-XXXX is largely immobile, possessing only vestigial fins for propulsion. It is, however, capable of horizontal movement through manipulation of its buoyancy via unknown means. The creature’s diet or if it even requires external nutrition is unknown, as it has never been observed feeding or producing waste. The internal structure of SCP-XXXX is unknown due to the effects of strong radiation on imaging devices.
SCP-XXXX is capable of entering an “active” state during which it ascends to the surface and greatly increases its radiation output. SCP-XXXX then emits two bright flashes within milliseconds of one another before returning to its inactive state. This active event has only been recorded once by the [REDACTED] satellite on ██/██19██, after which SCP-XXXX became known to the Foundation.
On ██/██/20██ a Foundation satellite captured a strong radiological signal coming from around the ██████ star cluster. The signal was followed by a distinctive double flash signature, confirming a link to SCP-XXXX and causing it to be designated SCP-XXXX-1. SCP-XXX-1 is currently approaching earth at speeds varying between 120 to 150 km/s and is projected to enter the atmosphere on ██/██/21██.
Following the signal from SCP-XXXX-1, SCP-XXXX has entered a period of heightened activity. The entity has begun creating a structure composed of the viscous fluid formerly only excreted in response to stress. This fluid hardens into a vitreous substance similar to the material found in SCP-XXXX’s sacs, despite having never displayed this property under laboratory conditions. SCP-XXXX has also displayed heightened aggression, displaying defensive behaviors towards the SCPS Geiger when the vessel approaches to within 5 km of the entity. As of ██/██/20██, requests to expand the inner Red Zone from 30 km2 to 50 km2 have been granted, and the rotation period for personnel aboard the SCPS Geiger has been lessened to 6 months.
Detailed imaging of the surrounding seafloor has revealed an ancient structure similar in composition to the mucosal secretions of SCP-XXXX located approximately 75 km from SCP-XXXX’s current location. The structure is a large oblong impression surrounded by a ridge of vitreous hardened mucus measuring 230 m by 120 m. Comparison of the isotopes in the substance with those contained within fresh samples has dated the structure to approximately 2.6 million years old. Several severely degraded samples of silicon dioxide were obtained from within the impression and proved to possess the same anomalous properties under testing as those obtained from SCP-XXXX.
The impression measures 80 m below the seafloor at its deepest and slopes upwards towards the outer rim. Analysis of the seafloor within and surrounding the impression has revealed that a great explosive force of unknown origin created the impression, and pieces of debris from the event have been located as far as 20 km from the epicenter. Studies on the site’s composition have produced no sign of changes associated with an asteroid impact. Detailed examinations of islands located 4 km outside the northern perimeter of the Green Zone has revealed evidence of a tsunami event dated to the same period as the structure. Assessment of the damage coupled with computer simulations indicate that the tsunami measured as high as 35 m.
Fossil fragments were also recovered from within the area but proved too fragmented to confirm the species, though they were carbon dated to within the same period as the structure and were recovered from within the same strata layer. Limited reconstruction posited that the deceased creatures were approximately 20 m in length and had a skeletal structure composed of cartilage. Samples from above the fossil layer indicated minor deposits of isotopes only common to SCP-XXXX. During excavation of the area SCP-XXXX appeared to become agitated and moved approximately 6 m towards the site before returning to its original position.
SCP-XXXX at resting depth. Note the distortion of the photograph caused by high radiation levels.
Item #: SCP-XXXX
Object Class: Keter
Special Containment Procedures: A 600 km2 perimeter is maintained around SCP-XXXX. The perimeter is divided into three zones: the outer “Green Zone”, the 200 km2 “Yellow Zone”, and the inner 50 km2 “Red Zone”. Detailed protocols regarding these designations are listed below.
Green Zone: Only Foundation operated vessels are permitted within the perimeter. Unauthorized vessels entering the Green Zone are to be redirected under the cover story of an ongoing ecological study in the area. Green Zone vessels are required to obtain authorization prior to entering the Yellow Zone.
Yellow Zone: All staff manning vessels within the Yellow Zone are to wear electronic personal dosimeters. Personnel situated within the Yellow Zone are not to be exposed to a dose of more than 5 rem a year. Persons who exceed this dose should be rotated out within 1 week. Radiation levels exceeding 10 rem/h necessitate an immediate evacuation to the outer Green Zone, followed by medical evaluation of effected staff.
Red Zone: The SCPS Geiger is the only vessel authorized to enter the Red Zone. SCPS Geiger is equipped with extensive radiation shielding and monitors, as well as a fleet of unmanned submersibles capable of emergency repairs. Personnel aboard the SCPS Geiger are to be extensively trained in the containment of radiological hazards. The crew consists of two separate containment teams that rotate between manning the SCPS Geiger on a 6-month basis. All staff manning the SCPS Geiger are to wear personal electronic dosimeters. Personnel should not exceed a dose of 5 rem during their rotation. A short-term dose of 25 rem is permitted during emergency procedures and is to be followed by evacuation and medical assessment. Levels of 50 rem/h or greater necessitate immediate evacuation of all personnel into the Green Zone.
Should SCP-XXXX show signs of reentering an active state, protocol VELA will be activated. During protocol VELA, all vessels aside from the SCPS Geiger immediately evacuate from the containment area. SCPS Geiger will deploy its cache of boron control rods into and around SCP-XXXX as well as its fleet of unmanned remote monitoring vessels. Upon completion of these operations SCPS Geiger will evacuate the containment area. The perimeter is to remain closed to all vessels until SCP-XXXX reenters a dormant state. Protocol VELA has yet to be implemented in the field.
SCP-XXXX-1 is to be prevented from entering the atmosphere. A satellite system to neutralize SCP-XXXX-1 is currently under construction and is projected to be fully operational by 2037. The system consists of weapons designed to attach to and repel SCP-XXXX-1 in the event that a method of full neutralization or containment is not completed in time. Due to the nature of SCP-XXXX and SCP-XXXX-1, no radiological weapons are authorized for use in their containment.
Description: SCP-XXXX is a large deep-sea organism that measures approximately 110 meters in length and resides at a depth of 7000 meters or more. SCP-XXXX is lined with numerous bioluminescent sacs composed of a material superficially similar to silicon dioxide, though the material has shown resistance to pressure and heat under testing far beyond what would be expected of the compound. SCP-XXXX’s abdomen appears to be composed of the same substance and is filled with thousands of opaque, spherical objects. Confirmation of the composition of SCP-XXXX’s abdomen as well as the purpose of the objects within has proven impossible, as SCP-XXXX has destroyed all vessels or persons attempting to extract samples.
SCP-XXXX produces light via Cherenkov radiation through an unknown nuclear reaction which takes place within its sacs. Exact identification of this process has proven to be so far impossible, as the extreme amounts of gamma and neutron radiation given off by SCP-XXXX prevents direct observation and causes severe degradation to numerous types of equipment. Additionally, attempts to drill beyond the outer layer of the bioluminescent sacs results in SCP-XXXX releasing large amounts of viscous slime from several glands located behind its head. These excretions contain several highly radioactive isotopes. Due to the extreme contamination hazard posed by this substance further attempts to extract samples from SCP-XXXX’s bioluminescent sacs have been suspended.
SCP-XXXX is largely immobile, possessing only vestigial fins for propulsion. It is, however, capable of horizontal movement through manipulation of its buoyancy via unknown means. The creature’s diet or if it even requires external nutrition is unknown, as it has never been observed feeding or producing waste. The internal structure of SCP-XXXX is unknown due to the effects of strong radiation on imaging devices.
SCP-XXXX is capable of entering an “active” state during which it ascends to the surface and greatly increases its radiation output. SCP-XXXX then emits two bright flashes within milliseconds of one another before returning to its inactive state. This active event has only been recorded once by the [REDACTED] satellite on ██/██19██, after which SCP-XXXX became known to the Foundation.
On ██/██/20██ a Foundation satellite captured a strong radiological signal coming from around the ██████ star cluster, followed by a distinctive double-flash signature. Images obtained via the ████████ space telescope confirmed a link to SCP-XXXX and caused it to be designated SCP-XXXX-1. SCP-XXX-1 is currently approaching earth at speeds varying between 120 to 150 km/s and is projected to enter the atmosphere on ██/██/21██.
Following the signal from SCP-XXXX-1, SCP-XXXX has entered a period of heightened activity. SCP-XXXX has begun creating a structure composed of the viscous fluid formerly only excreted in response to stress. This fluid hardens into a vitreous substance similar to the material found in SCP-XXXX’s sacs, despite having never displayed this property under laboratory conditions. SCP-XXXX has also displayed heightened aggression, displaying defensive behaviors towards the SCPS Geiger when the vessel approaches to within 5 km of the entity. As of ██/██/20██, requests to expand the inner Red Zone from 30 km2 to 50 km2 have been granted, and the rotation period for personnel aboard the SCPS Geiger has been lessened to 6 months.
Detailed imaging of the surrounding seafloor has revealed an ancient structure similar in composition to the mucosal secretions of SCP-XXXX located approximately 75 km from SCP-XXXX’s current location. The structure is a large oblong impression surrounded by a ridge of vitreous hardened mucus measuring 230 m by 120 m. Comparison of the isotopes in the substance with those contained within fresh samples has dated the structure to approximately 2.6 million years old. Several severely degraded samples of silicon dioxide were obtained from within the impression and proved to possess the same anomalous properties under testing as those obtained from SCP-XXXX.
The impression measures 80 m below the seafloor at its deepest and slopes upwards towards the outer rim. Analysis of the seafloor within and surrounding the impression has revealed that a great explosive force of unknown origin created the impression, and pieces of debris from the event have been located as far as 20 km from the epicenter. Studies on the site’s composition have produced no sign of changes associated with an asteroid impact. Detailed examinations of islands located 4 km outside the northern perimeter of the Green Zone has revealed evidence of a tsunami event dated to the same period as the structure. Assessment of the damage coupled with computer simulations indicate that the tsunami measured as high as 35 m.
Fossil fragments were also recovered from within the area but proved too fragmented to confirm the species, though they were carbon dated to within the same period as the structure and were recovered from within the same strata layer. Limited reconstruction posited that the deceased creatures were approximately 20 m in length and had a skeletal structure composed of cartilage. Samples from above the fossil layer indicated minor deposits of isotopes only common to SCP-XXXX. During excavation of the area SCP-XXXX appeared to become agitated and moved approximately 6 m towards the site before returning to its original position.
SCP-XXXX at resting depth. Note the distortion of the photograph caused by high radiation levels.
Item #: SCP-XXXX
Object Class: Keter
Special Containment Procedures: A 600 km2 perimeter is maintained around SCP-XXXX. The perimeter is divided into three zones: the outer “Green Zone”, the 200 km2 “Yellow Zone”, and the inner 50 km2 “Red Zone”. Detailed protocols regarding these designations are listed below.
Green Zone: Only Foundation operated vessels are permitted within the perimeter. Unauthorized vessels entering the Green Zone are to be redirected under the cover story of an ongoing ecological study in the area. Green Zone vessels are required to obtain authorization prior to entering the Yellow Zone.
Yellow Zone: All staff manning vessels within the Yellow Zone are to wear electronic personal dosimeters. Personnel situated within the Yellow Zone are not to be exposed to a dose of more than 5 rem a year. Persons who exceed this dose should be rotated out within 1 week. Radiation levels exceeding 10 rem/h necessitate an immediate evacuation to the outer Green Zone, followed by medical evaluation of effected staff.
Red Zone: The SCPS Geiger is the only vessel authorized to enter the Red Zone. SCPS Geiger is equipped with extensive radiation shielding and monitors, as well as a fleet of unmanned submersibles capable of emergency repairs. Personnel aboard the SCPS Geiger are to be extensively trained in the containment of radiological hazards. The crew consists of two separate containment teams that rotate between manning the SCPS Geiger on a 6-month basis. All staff manning the SCPS Geiger are to wear personal electronic dosimeters. Personnel should not exceed a dose of 5 rem during their rotation. A short-term dose of 25 rem is permitted during emergency procedures and is to be followed by evacuation and medical assessment. Levels of 50 rem/h or greater necessitate immediate evacuation of all personnel into the Green Zone.
Should SCP-XXXX show signs of reentering an active state, protocol VELA will be activated. During protocol VELA, all vessels aside from the SCPS Geiger immediately evacuate from the containment area. SCPS Geiger will deploy its cache of boron control rods into and around SCP-XXXX as well as its fleet of unmanned remote monitoring vessels. Upon completion of these operations SCPS Geiger will evacuate the containment area. The perimeter is to remain closed to all vessels until SCP-XXXX reenters a dormant state. Protocol VELA has yet to be implemented in the field.
SCP-XXXX-1 is kept in a radiological containment unit at Area-32. The remains are to be constantly monitored for spikes in radiation levels, and personnel involved in testing the remains are to be screened for contamination.
Description: SCP-XXXX is a large deep-sea organism that measures approximately 110 meters in length and resides at a depth of 7000 meters or more. SCP-XXXX is lined with numerous bioluminescent sacs composed of a material superficially similar to silicon dioxide, though the material has shown resistance to pressure and heat under testing far beyond what would be expected of the compound. SCP-XXXX’s abdomen appears to be composed of the same substance and is filled with thousands of opaque, spherical objects. Confirmation of the composition of SCP-XXXX’s abdomen as well as the purpose of the objects within has proven impossible, as SCP-XXXX has destroyed all vessels or persons attempting to extract samples.
SCP-XXXX produces light via Cherenkov radiation through an unknown nuclear reaction which takes place within its sacs. Exact identification of this process has proven to be so far impossible, as the extreme amounts of gamma and neutron radiation given off by SCP-XXXX prevents direct observation and causes severe degradation to numerous types of equipment. Additionally, attempts to drill beyond the outer layer of the bioluminescent sacs results in SCP-XXXX releasing large amounts of viscous slime from several glands located behind its head. These excretions contain several highly radioactive isotopes. Due to the extreme contamination hazard posed by this substance further attempts to extract samples from SCP-XXXX’s bioluminescent sacs have been suspended.
SCP-XXXX is largely immobile, possessing only vestigial fins for propulsion. It is, however, capable of horizontal movement through manipulation of its buoyancy via unknown means. The creature’s diet or if it even requires external nutrition is unknown, as it has never been observed feeding or producing waste. The internal structure of SCP-XXXX is unknown due to the effects of strong radiation on imaging devices.
SCP-XXXX is capable of entering an “active” state during which it ascends to the surface and greatly increases its radiation output. SCP-XXXX then emits two bright flashes within milliseconds of one another before returning to its inactive state. This active event has only been recorded once by the [REDACTED] satellite on ██/██19██, after which SCP-XXXX became known to the Foundation.
SCP-XXXX has gradually entered a period of heightened activity in the years following this event. SCP-XXXX has begun creating a structure composed of the viscous fluid formerly only excreted in response to stress. This fluid hardens into a vitreous substance similar to the material found in the outer layer of SCP-XXXX’s sacs, despite having never displayed this property under laboratory conditions. SCP-XXXX has also displayed heightened aggression, displaying defensive behaviors towards the SCPS Geiger when the vessel approaches to within 5 km of the entity. As of ██/██/20██, requests to expand the inner Red Zone from 30 km2 to 50 km2 have been granted, and the rotation period for personnel aboard the SCPS Geiger has been lessened to 6 months.
On ██/██/20██ a Foundation satellite captured a strong radiological signal coming from within the Kuiper Belt. The source was identified as the remains of an unknown organism via the ██████ space telescope and was subsequently retrieved and sequestered within Area-32. The recovered remains measure approximately 50 meters in length and include nearly all of the entity’s abdomen and partial remnants of its hind legs. Sacs lining the remains have proved under testing to be composed of the same material as those found on SCP-XXXX, though only the outer layer and parts of the inner membrane remain due to collisions with space debris. This tentative connection has led to the remains being designated SCP-XXXX-1.
Detailed imaging of the surrounding seafloor has revealed an ancient structure similar in composition to the mucosal secretions of SCP-XXXX located approximately 65 km from SCP-XXXX’s current location. The structure is a large oblong impression surrounded by a ridge of vitreous hardened mucus measuring 230 m by 120 m. Comparison of the isotopes in the substance with those contained within fresh samples has dated the structure to approximately 2.6 million years old. Several severely degraded samples of material similar to silicon dioxide were obtained from within the impression and proved to possess the same anomalous properties under testing as those obtained from SCP-XXXX.
The impression measures 80 m below the seafloor at its deepest and slopes upwards towards the outer rim. Analysis of the seafloor within and surrounding the impression has revealed that a great explosive force of unknown origin created the impression, and pieces of debris from the event have been located as far as 20 km from the epicenter. Studies on the site’s composition have produced no sign of changes associated with an asteroid impact. Detailed examinations of islands located 4 km outside the northern limit of the Green Zone has revealed evidence of a tsunami event dated to the same period as the structure. Assessment of the damage coupled with computer simulations indicate that the tsunami measured as high as 35 m.
A total of 5 similar structures have been identified trailing out from the oldest one, with the youngest dated to around 500,000 years old and located approximately 15 km from SCP-XXXX’s current location. These structures occur in 10 km intervals and lack any evidence of an explosive force having occurred, as well as measuring only 10 m below the seafloor at their deepest. No relevant fossil records were recovered from within these younger sites, though they all contained isotopes common to SCP-XXXX.
Fossil fragments were recovered from within the oldest site but proved too fragmented to confirm the species, though they were carbon dated to within the same period as the structure and were recovered from within the same strata layer. Limited reconstruction posited that the deceased creatures were approximately 20 m in length and had a skeletal structure composed of cartilage. Samples from above the fossil layer indicated minor deposits of isotopes only common to SCP-XXXX. During excavation of the area SCP-XXXX appeared to become agitated and moved approximately 6 m towards the site before returning to its original position.
