SCP-4007

Item #: SCP-4007
Object Class: Safe Euclid Keter Thaumiel Apollyon

Special Containment Procedures: SCP-4007 is contained in an airtight room guarded by 4 armed guards.

Description: SCP-4007 is an invisible entity the height is unknown it cannot be seen at all, but it can be heard most of the time, sometimes it's silent. It's weak without air.

Addendum: SCP-4007 was discovered in 19[REDACTED] in [REDACTED].