Per 
Special Containment Procedures: SCP-XXXX is to be contained in a secure containment cell, no more than 5x5x5 metres in dimesnsion, and no less than 3x3x3. SCP-XXXX must be constantly monitored by two Personell, and the entrance to the cell is to be guarded by two armed guards on a normal basis, but must be increased to five when testing. In the case that an entity attemps to exit SCP-XXXX, the temperature is to be raised above 100* Celsius. Personnel must have level three clearance or higher to enter the containment cell. Only D-Class personnel are to be permitted to enter SCP-XXXX.
Description: SCP-XXXX is a rusted iron door that is approximately 7.5 centimetres thick. There is only a knob on one side. When opened and pushed in, it will lead to a blank white room, measured to be one kilometre accross. It is currently very difficult to discern distances in SCP-XXXX-2, because of its non-euclidean geometry. Testing has resulted in the discovery that no matter what direction is traveled, it will always be a distance of one kilometre to a door. Further testing has revealed that there is only one exit door. The Foundation currently has no means of opening the exit door. It is theorized that the exit door leads to a separate location, but this has not been proven. There are also humanoid entities that reside inside SCP-XXXX-2, which are pitch black, and their only goal appears to be to keep people inside SCP-XXXX-2. Long-term testing has also suggested that subjects will start to assimilate into the environment, often beginning to resemble the entities. The entities are currently under review to decide if they should also recieve SCP status.
Test A - Date
Subject: D-8396
Procedure:
Results:
Analysis:`
