Per 
Item #: SCP-XXXX
Object class: Euclid
Special Containment Procedures
SCP-XXXX must be help in a 10 m x 10 m x 10 m airtight cube behind 2 airtight steel doors about 5 cm thick, the hall has an x-ray. This SCP is held in site-19 sector 08. All people exiting SCP-XXXX's cell must come out shirtless to see any scars afflicted on the back, it is known that SCP-XXXX will take over a body by ripping out the skeleton and crawling into it (more in description). It has been noted that SCP-XXXX has a high concentration of iron in its bones causing it to easily be seen under an X-ray, the three dots have also been able to be seen under an x-ray and it has been thought to possibly be controlled bone cancer. If it is found from one of the X-rays an alarm over 100 decibels will be played to make SCP-XXXX go back to its cell.
Description
SCP-XXXX is approximately 180 cm tall skeleton, it has three black dots on its forehead in the shape of a triangle, SCP-XXXX has very sharp teeth and has arms approximately down to its ankles. When ever a person goes 2 meters near SCP-XXXX they will freeze in fear no matter what and a wave of anxiety and paranoia will overcome the person. After 30 seconds of being near SCP-XXXX, SCP-XXXX will walk over behind the subject and immediately rip the skeleton out of the subject and crawl into their skin. The way SCP-XXXX mutilates the subject is by grabbing the lumbar vertebrae and transforming its other hand to wrap around the spine connecting to the ribcage and using its teeth to chew the flesh until the bone is exposed, after SCP-XXXX will tear out the skeleton of the subject and either crawl into its skin or consume the flesh. It is when the flesh is consumed, a substance consisting of human flesh, stomach acid and bone marrow will appear after the flesh is put in the creatures mouth.
The size of the subject does not seem to matter because SCP-XXXX is able to change size at will, it is still unknown how small it can get but it is theorised to be as small as an infant, it is unknown how it can grow and shrink it bones faster then the average growth of human bones. The skeleton torn out will become sentient and will be known as SCP-XXXX-1 and will posses the same behaviour of SCP-XXXX. If SCP-XXXX-1 does not find a person to kill and take their skin, the bones will decompose after 2 weeks. Note: this will only happen to SCP-XXXX-1 and not to the original SCP-XXXX. The further away SCP-XXXX-1 is from the original SCP-XXXX will cause the decomposition effect to speed up. SCP-XXXX has been found to be in a state of fear or distress when a noise over 100 decibels is played, this was shown when a containment breach of SCP-096's cell occurred making the alarm go off and SCP-XXXX to become distressed and ran 40 km around the cell all the while emitting a very loud and low pitched noise similar to a lion or bear roar. The noise emitted was around 120 - 140 decibels of which is as loud as Boeing 747 jet engine. When the alarm was shut off the creature started to pace its cell for 10 minutes and than laid down to rest possibly from exhaustion. Due to the reproduction of SCP-XXXX, all copies must be transferred to a separate until the bones decompose. After later testing it has been found that copies of SCP-XXXX being close to one another will also cause a delayed decomposition time, this has caused some worry among the foundation due to the likelihood of a possible XK-class Extinction event.
Addendum
SCP-XXXX was found in an abandoned warehouse in Circleville, Utah. After reports of missing people in the area, police units dispatched to search the area they found SCP-XXXX in the warehouse surrounded by 5 of its copies. The foundation was called to investigate the area, they deployed MTF-Zulu 5 to capture the creature. When they arrived at the warehouse, they discovered the copies of the creatures had decomposed. SCP-XXXX appeared to be docile, and as the MTF came closer, SCP-XXXX rose up and one of the agents was paralysed with fear. SCP-XXXX grew closer to the agent, and when it was about 1 meters from the agent, another agent fired his rifle at the creature. SCP-XXXX was frightened and ran outside. Agents outside the warehouse managed to herd the creature into one of the trucks and then delivered SCP-XXXX to Site-19.
