Item #: SCP-XXXX
Object Class: Euclid (See below)
Special Containment Procedures: SCP-XXXX is to be secured inside a 10m x 10m x 10m airtight chamber composed of a stronger variant of steel1 at all times. A ventilation system consisting of four vents with a four layer airlock (for preventing the escape of SCP-XXXX-1) is to be installed into the ceiling of the containment chamber, with connection to a hydrogen supply. Mandatory checks for any form of cracks or holes in the chamber walls are to be carried out twice per week. If SCP-XXXX-1 breaks free from SCP-XXXX, the hydrogen vent system is to be activated immediately. If SCP-XXXX-1 escapes the containment chamber, Protocol XXXX-Thanatos is to be carried out. All personnel at Site-36 are to be provided with a gas mask and the appropriate B type filter to protect them from suffocation in the event that Protocol XXXX-Thanatos is required. If SCP-XXXX-1 undergoes a physical advancement that prevents it from being terminated in the already discovered fashions, SCP-XXXX is to be reclassified as Keter, all forms of testing are to be indefinitely halted, and SCP-XXXX is to be accompanied by a minimum of three armed guards at all times.
Description: SCP-XXXX is a large spherical entity that heavily resembles a human eye. It has a circumference of approximately 3 meters, is light green in color, and is slightly translucent. Its pupil contains [DATA EXPUNGED], an organ that carries out effectively the same function as a human kidney, and occasionally secretes a dark liquid. This liquid has been shown to be an extreme stimulant to pain, although it does exhibit any acidic or otherwise harming properties.
SCP-XXXX-1 is a small, green, serpentine creature that is approximately 1.5 meters in length. It resides inside of SCP-XXXX, floating inside of a liquid which has extreme sedative properties, even to the touch. SCP-XXXX-1 appears to have the almost constant intent of breaking out of SCP-XXXX, uninterruptedly scratching the sides of SCP-XXXX and biting it with [DATA EXPUNGED], a small mouth-like orifice with protruding, jagged projections of flesh. The liquid that surrounds it is presumed to be an attempt from SCP-XXXX to calm SCP-XXXX-1 and dissuade it from trying to break free. SCP-XXXX-1's outer flesh is composed mainly of oxygen compounds, and is highly susceptible to hydrogen combustion.
If SCP-XXXX-1 emerges from SCP-XXXX, SCP-XXXX will enter a state of reasonable emotional agitation, growing several long tentacles from its pupil, until SCP-XXXX-1 is returned to its inside. SCP-XXXX-1 will actively begin seeking out human or animal life, and will eviscerate any brain-based organisms and lodge itself into the skull. It will release electrical impulses into the spinal cord, effectively suppressing the consciousness of the victim. This is believed to be a method of hiding from SCP-XXXX. SCP-XXXX will begin to investigate the location of SCP-XXXX-1, impaling any lifeforms that it can see with its large tentacle-like protrusions sees in an attempt to find SCP-XXXX-1. If SCP-XXXX-1 travels to a location that SCP-XXXX cannot navigate to due to its large size, it will begin to create fissures in the walls with its large tentacles. (Currently it appears there are almost no materials that it is unable of rupturing, although one known exception is a stronger version of steel.) Once it determines the location of SCP-XXXX-1, SCP-XXXX will grasp and place SCP-XXXX-1 back inside of it, and will become docile. SCP-XXXX can also become tranquil if SCP-XXXX-1 is exterminated. After the elimination of SCP-XXXX-1 is complete, SCP-XXXX will enter a state of temporary hibernation over a span of 1-6 days, during which it will begin to reform the makeup of SCP-XXXX-1. Whenever SCP-XXXX-1 is reformed, it may have slightly varied physical features. Variations have not yet prevented the termination of SCP-XXXX-1, although it is prominent enough that Foundation staff be prepared for such an event.
Addendum 1: Protocol XXXX-Thanatos requires MTF-Iota-13 to undergo 10 complete sweeps of the entire facility. During this time the main ventilation system is to be flooded with hydrogen. If SCP-XXXX-1 is not recovered or terminated, SCP-XXXX is to be reclassified as Keter.
Addendum 2: SCP-XXXX appears to be invulnerable to attacks to the bulk of its body, only showing any signs of pain when the pupil is breached. Tentacles have shown to be breakable (although not to the reaction of SCP-XXXX), but are highly regenerative, regrowing to full length in a matter of 5-7 seconds.
Addendum 3: The only method of treating "wounds" from the dark liquid is thoroughly cleansing the afflicted area of skin. There is currently no known method of treating subjects who have ingested the liquid.






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