 Item Number – SCP-450 Object Class – Euclid Special Containment Procedures SCP-450 is to be kept locked and secured at all times, except for monthly maintenance and cleaning as detailed below. Any civilians or personnel who enter SCP-450 at any other time are to be considered lost, and no rescue attempts are to be made. Description – SCP-450 is the death row block of the abandoned F-Federal Penitentiary in F-Distance from entrance to the execution chamber is approximately 166.5 meters. A complex pattern, drawn in human blood, is located on the wall behind the electric chair. This pattern slowly degrades over time due to normal environmental decay and must be maintained regularly. The cell block is inhabited by what appears to be one or more hostile spectral entities. Attracting the attention of said entities is invariably fatal and may or may not occur due to one of the following criteria. Entering the cell block by any means other than the main door. Moving at a speed greater than 0.25 meters per second. Being in the cell block for more than 25 minutes at a time. Entering the cell block more than once every 24 hours. Operating any electronic device. Any sound louder than CA-25 decibels. Personnel assigned to maintain the containment pattern are instructed to silently walk down the center of the main hallway at a slow but steady pace. As it takes approximately 11 minutes to walk to the execution chamber at maximum safe rate of travel, personnel will have only 3 minutes to work on the pattern and still have enough time to reasonably guarantee a safe exit from the facility. Auditory and visual hallucinations, including spectral voices, bleeding walls, and poltergeist activity are considered normal. Lack of same is cause for concern. Personnel are encouraged not to investigate any dead bodies, supernatural activity, or rotting remains. Lesson complete. If you missed the previous orientation, go watch SCP-449, Gut Dust, right now. Or for the complete course, watch this playlist.