 Item No. SCP-052 Object Class Euclid Special Containment Procedures Although it is not possible to remove SCP-052 from the New York City subway system, its predictable behavior allows the Foundation to prevent the public from encountering it. The 59th Street ABCD station is to be closed to the public from 11pm to 1am on Saturdays and Sundays, under the pretext of track maintenance. During that time, the station is to be staffed with agents from Mobile Task Force Gamma 6. Agents have been ordered to prevent accidental public access to the station, and to capture anyone seen leaving SCP-052. Anyone who has been on SCP-052 must be transported to Site-21 for debriefing and processing. Members of the public who see SCP-052 may be released after the administration of a Class B amnestic. Description SCP-052 is a Type R4 New York City subway train. Official records indicate this train was built in 1932 and decommissioned for scrap in 1975. Nevertheless, it continues to appear on the Uptown AD tracks at the 59th Street and 8th Avenue station at 11.57pm every Saturday. The train is in perfect condition and labeled as an A train. SCP-052 appears at a designated time, opens its doors to accept discharged passengers for approximately 5 minutes, then closes its doors and disappears. It does not appear to ever contain passengers, except for those leaving the train during its appearance. The majority of subjects that have boarded SCP-052 have not been recovered. Passengers leaving SCP-052 claim to have boarded on various dates from 1976 up to 2204. The latter claims he thought SCP-052 was a 300 anniversary special train. Subjects retain no knowledge of time on board. Addendum Passengers leaving SCP-052 must be brought to Site-21 and interrogated to determine their origin and possible threat to the current time stream. Generally, passengers from the past may be given Class-A amnestics and reintegrated into society. Passengers from the future must be held indefinitely. C orders 69-A-1 from 05-9. Site-21 currently holds 26 recovered passengers. Despite our protocols to prevent public access, we are still receiving subjects from the future. Although some are from alternate timelines, it is possible SCP-052 will begin to appear at another time or place requiring expanded containment. The Foundation has placed several subjects under the train in an attempt to understand its activities when not visible. Test-052-1, May 31st, 2009. Agent █████ placed on train, not recovered as a present date. Test-052-2, June 6th, 2009. Agent █████ enters train, not recovered, as he apparently returned to 1980 and was killed in a confrontation with █████. Test-052-3, C notes on recovered passengers 052-4. After Test-052-3, 05-Command issued orders that no further agents should be risked as passengers on SCP-052. Consideration has been given to using Class-D personnel in their place, but the risk of releasing them into the past is too great. Log of recovered passengers in Foundation custody. Test-052-1, Enter train, July 14th, 2012. Recovered, March 8th, 2008. Dopes, an accountant on the way home from the theater when she entered the train, 052-1 has expressed surprise in this May to have traveled back in time for years, but appears to be otherwise unchanged and unharmed. She has been determined to currently exist in this timeline and must be held indefinitely to prevent unwanted temporal effects. Passenger 052-2, Enter train, June 12th, 1976. Recovered, March 15th, 2008. Although unharmed and not a temporal threat, 052-2 is being held as the examined psychiatrist believes 32 years is too long a period over which to facilitate successful reintegration. Passenger 052-3, Enter train, December 6th, 2014. Recovered, June 20th, 2009. Notes, a tourist from Jacksonville, Florida. Subject 052-3 now speaks Albanian instead of English. Held to the O5 orders, reference, subjects from the future, as well as possible reintegration difficulties. Passenger 052-4, Enter train, June 13th, 2009. Recovered, June 27th, 2009. Notes, agent b**** from test 052-3. Agent returned with his hand surgically removed and a note in his pocket with the message send no more. Subject does not remember his experience on the train, but one subjected to hypnosis revealed Passenger 052-5, Agent b**** Enter train at unknown future date, in violation of protocol. On July 11th, 2009, body of subject was violently thrown from the train, landing 10 meters away. On examination, subject was found to have been ██████ whether security should be increased to prevent subject from entering SCP-052 is under consideration. Passenger 052-6 claims to be a level 4 supervisor from the SCP Federation, who entered the train in December 2124. Subject had been administered a Class A Prime Amnestic prior to boarding, in a successful attempt to avoid the fate of Passenger 052-4 and 052-5. For February 6, 2010, as he will never be released from Foundation custody, 05 Command has approved sharing otherwise classified information about other artifacts in our possession, in hopes of getting new methods of containment and becoming aware of future security breaches. Agent b**** has been cooperative and claims that it is good we do not know how to open SCP-699. Subject turned visibly pale and refused to discuss this item further. To be a survivor of the, quote, great zombie plague of 2092, unquote, caused by an SCP-008 containment breach, that SCP ██ can be killed by ██ with a ██ and SCP ██. Permission to try this has been denied by 05-██ that he worked for Dr. Jack Bray.