Doctor Fullham
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The entrance to SCP-3608 upon discovery.

Item #: SCP-3608

Object Class: Euclid

Special Containment Procedures: The entrance to SCP-3608 is to be contained in Secure Wing Alpha of Site-3608. Site-3608 was constructed around SCP-3608 due to the failure of all attempts to neutralize or relocate it. SCP-3608 must remain under 24/7 video surveillance. Personnel are not to come within 15 meters of SCP-3608 without approval from Site Director Haugen.

Description: SCP-3608 is located in the █████ region of ███████████, approximately 11.3km away from the nearest established human settlement. It appears as a single blue wooden door and frame, not connected to any wall or building. The door is weathered and worn, with the blue paint fading and cracked in several places, but structurally sound. Paint chips and a sample of the wood of which the door is constructed were analyzed. The paint is chemically consistent with Valspar brand paint, and the wood is from a Quercus alba (white oak) tree. No anomalous properties have been detected in the paint or the wood.

Looking through the door, everything observed is what would normally appear on the other side of the door. All flora and fauna appear normally as viewed through the door. However, upon passing over the threshold, test subjects disappear.1

SCP-3608 has been reclassified as Euclid after further research into the expedition logs and recovered materials. SCP-3608 is not the door itself, but what the door leads to. Foundation researchers have determined that SCP-3608 is a sapient, predatory dimension, able to siphon energy from the negative emotions of any sapient beings that enter it. It is able to obtain information about the being2 and its universe of origin3. The method by which SCP-3608 obtains this information is currently unknown. SCP-3608 does not appear to have any interest in inanimate objects that are not attached to or held by sapient creatures. Inanimate objects that are thrown over the threshold pass over it and appear on the other side with no noticeable changes. Attempts to pilot drones into SCP-3608 for unmanned expeditions have been unsuccessful. Drones and other unmanned remote equipment cease to function inside SCP-3608.

On ██/██/2015, O5 personnel approved Operation Locktight.

Discovery: SCP-3608 was discovered by the Foundation after a rash of missing persons reports near █████, ███████████. Local authorities discovered SCP-3608, and a Foundation agent within the police force brought the item to The Foundation's attention after an officer by the name of L. █████████ entered SCP-3608 and vanished from sight. He returned hours later in a state of severe emotional distress. Officer L. █████████ was escorted to Site-██ for questioning and full psychological evaluation [See Log 3608-P]. Class-A amnestics were administered and the officer was returned to his home.

As of ██/██/2014, four manned expeditions into SCP-3608 have been attempted. Transcripts of expeditions can be seen below.

Addendum 1: Testing has been ceased pending review from O5 Supervisors. No personnel are to interact with or approach SCP-3608 without express approval from Site Director Haugen.