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SCP-4000

Item #: SCP-4000

Object Class: Thaumiel (formerly Safe)

Special Containment Procedures: Due to the anomalous properties of SCP-4000, maintaining a secure perimeter around the site is believed to be unnecessary at this time. Present containment procedures are focussed on monitoring SCP-4000's interior for changes that would indicate potential failure of its anomalous properties.

In the event of SCP-4000's failure, existing philosophical contingencies for large-scale loss of free will and human agency should be put into action.

Description: SCP-4000 is believed to be the remains of a former Foundation facility, located in Harrier Fields, England. Due to the lack of available documentation about the facility prior to its containment, information such as the building's original purpose and the objects it contained has been lost, possibly permanently.

Sapient beings show a strong aversion to entering SCP-4000 or generally interacting with it. This aversion increases with proximity to SCP-4000, with human and animal subjects placed inside SCP-4000 lapsing into a catatonic state almost immediately upon entry.

Addendum SCP-4000-a): Abridged Unmanned Exploration Log

On the 23rd of March, 2015, improvements in Foundation machine vision technology allowed an EARHART-class drone to successfully navigate the facility's interior without involving a human operator. This allowed for the first exploration into the underground levels of the facility. Since SCP-4000's cognitohazardous properties prevented human transcription of the resultant video, edited logfiles from the AI on-board the drone are provided instead.

A human face is visible in the window of this office. With 0.97 certainty this face is too long.

Addendum SCP-4000-b): Conclusions Regarding Recovered Materials

[CLASSIFIED: 5/4000 CLEARANCE]

Addendum SCP-4000-c): Reclassification

In light of the events in SCP-4000-a) and the subsequent discovery of the information in Addendum SCP-4000-b), SCP-4000's properties have been tentatively reclassified as Explained. Future expeditions or other interaction with SCP-4000 is expressly forbidden until further notice.