SCP-106 causes a “corrosion” effect in all solid matter it touches, engaging a physical breakdown in materials several seconds after contact. SCP-106 appears to prefer human prey items in the 10-25 years of age bracket.
When attacking, SCP-106 will attempt to incapacitate prey by damaging major organs, muscle groups, or tendons, then pull disabled prey into its pocket dimension. SCP-106 is also capable of scaling any vertical surface and can remain suspended upside down indefinitely. SCP-106 is not exceptionally agile and will remain motionless for days at a time, waiting for prey. This appearance may vary, but the “rotting” quality is observed in all forms. SCP-106 appears to be an elderly humanoid, with a general appearance of advanced decomposition. SCP-106, or 'The Old Man' is a keter class SCP and a prominent antagonist of SCP: Unity.