Per 
Object Class: Safe
Photo taken during Test #73b.
Special Containment Procedures:
The property containing SCP XXX has been purchased by a foundation front company. Signs are to discourage people from entering SCP XXX’s front building. One agent dressed in a security officer uniform ought to be present at all times and forbid anyone from entering the premises.
Should a person somehow enter SCP XXX, the present officer is instructed to contact Dr. Khadija, who will then authorize an amnestics team, which will wait at SCP XXX’s entrance for up to 10 days. Should the person emerge from the entrance, amnestics are to be administered and left to go. If the 10 days pass, the person will be considered dead and a recovery team will be displaced to retrieve the body.
Description:
SCP XXX is a tunnel, located in an abandoned factory building in - , - county, Idaho.
The tunnel is sealed via a large metal metal door, that appears to spontaneously open and close via unknown means.
The tunnel is significantly longer than possible, ranging from 20 to 350 Kilometers. Despite being perfectly straight, should a person enter the tunnel and walk the entire distance of SCP XXX, they will emerge at the entrance, which at that point has yet to be closed. The tunnel is lit up by light, spaced 2 meters apart. Every 3 lamps, a lamp is skipped, creating occasional but regular dark zones.
The walls of SCP XXX are painted with repeating graffiti patterns. For more information on those, see Addendum 443.
SCP XXX was discovered after a distressed, undernourished and dehydrated homeless person burst into a local police station, claiming they walked through the entirety of SCP-XXX. Embedded foundation agents took notice and contacted their superiors. Amnestics were admitted to the homeless man and tests authorized via orders of Dr. Khadija.
Note: After the events of Test 29387234, reviews are currently underway to add an aspect of interdimensionality to SCP XXX.
Test #23E
A remotely controlled drone, fitted with a camera, was placed near the entrance and driven into SCP XXX, after driving for approximately 2 Kilometers, the entrance door began to close.
After closing, contact to the drone was lost.
The door stayed closed and was unable to be opened for 2 days, after which, contact to the drone could not be restored, having presumably run out of batteries.
Test #73B
A second drone was driven into SCP XXX, this time fittet with a 4,5 Kilometer long cable.
After driving for about 2 kilometers, the drone from the first test became visible. After passing the done, the entrance doors began to close. Att
Test #11U
D-48423 was brought onto the side and fitted with a communication device, 2 weeks worth of nutritions and water and told to enter SCP XXX.
As expected, the door closed behind D-48423 after he passed the 2 Kilometer mark, upon which communication broke down. The loud sound by the door closing must’ve startled the subject as after 10 minutes, repeated banging was heard from inside the tunnel, on the door. It was possible to communicate with D-48423, though only with great difficulty. D-48423 was instructed to just keep on walking and reassured that there would be an exit.
After a small argument, D-48423 began walking and hasn’t reappeared since.
Test 73b
Dr. Khadija requested the utilization of an MTF for testing, which was granted by O5-().
MTF-Sierra 32, “Squats for Days” arrived on site on the ().().20(). The MTF was made up of elite hikers, used to walk long distances for an extended period of time. They were outfitted with standard MTF gear. The following is a video and audio transcript of the events occuring.
Carrier of Camera and Microphone: Susan McMillan
[The rest of MTF-Sierra 32 are seen conversing and listening to the leading scientists. McMillan begins to preemptively move a 20 Liter water bottle and a bag of nutrition into SCP-XXX. While inspecting the contents of the bag, Sergeant Stewert from MTF-Sierra 32 is heard yelling]
Sgt. Stewert: “SUSAN, GOD DAMN IT!”
[MTF-Sierra 32 is seen looking into the tunnel. The doors are closing. Two scientists present try to keep them open. McMillan begins to run]McMillan: “SHIT, SHIT, SHIT!”
[The scientists are unable to keep the door open and it shuts just as McMillan arrives. She punches the door in frustration]
McMillan: “Stupid, stupid STUPID! I’m so god damn stupid!”
Sgt. Stewart, from the other side of the door, muffled: “Susan, what the fuck were you thinking?”
McMillan: “Obviously I wasn’t thinking, FUCK.”
[Muffled, unintelligible talking is heard from the other side of the door.]
Sgt. Stewart: “Okay Susan, the eggheads are saying that if you walk into the tunnel for long enough, you’ll eventually get out. I’m sure if some hobo can do it, you can too. Got it?”
McMillan: “Well, shit. I guess. Fuck. Stupid. I’m so stupid.”
Sgt. Stewart: “Save your energy. Do you have enough provisions?”
McMillan: “I don’t know how long this shit goes on for, so I hope so.”
[At this point, McMillan begins to start walking into the direction, away from the door.
On the way, she picks up the previously dropped water jug and the bag of provisions.
After 30 minutes, she passes the drones from previous tests, once again expressing her discontent with the situation. Over the next couple of hours, McMillan occasionally flashes her flashlight, reads the grafite, whistles melodies of popular music, drinks water and occasionally curses.
After an estimated 12 Kilometers she takes a break, pouring water into a standard issue nutrition pack.
Over the sound of her eating, quiet, echoing footsteps away from the direction of the door are heard. She pauses eating and looks into that direction.]McMillan: “Hello? Is someone there?”
[The footsteps stop. McMillan grabs her gun, quietly removing the safety. A distant, quiet, echoing voice is heard.]
Distant voice: “Yes, hello? Who’s there? Don’t make me turn around, please.”
[McMillans lets out a deep sigh, packing up her meal & backpack and beginning to move into the direction of the voice]
McMillan: “Yes, I’m coming to you, wait there”
Distant voice: “Okay, I’m waiting”
[McMillan begins marching into the voice’s direction, her gun firmly in her hands. After about 400 meters, she pauses and leans forwards slightly]
McMillan: “Holy shit”
[McMillan begins pacing. After another 100m, the rough outline of a woman is able to be picked up by the camera. About 200 Meters before the figure, McMillans starts sprinting towards it. The woman starts vocalizing]
Women: “Oh thank god, you’re real.”
[McMillan arrives at the woman. The camera can now see her in full. She is wearing a GOC Uniform, equipped with standard field gear]
Women: “SCP? I should’ve expected you guys to show up sooner or later. Name’s Stephanie Wright. Sargent Stephanie Wright.
McMillan: “Susan *catches breath* Susan McMillan. What the hell are you doing here?”
Wright: “We were checking on a notice by a police department near here. Apparently some hobo said he ‘walked in a long ass tunnel and came out the same end’. While we were figuring out how to seal this thing I walked in a little too far and now I’m here. Good thing I’m the best hiker in the GOC.”
McMillan: “Same happened to me. We were supposed to be a team but the door shut behi-
Wait, when did you enter?”Wright: “A few hours ago. I’m surprised you guys crashed the party so fast.”
McMillan: “Fuck. This thing is stranger than I thought. I also got into this mess a few hours ago and there was no sign of GOC anywhere.”
Wright: “Well, shit. I suppose we can sort this mess out when we get out of here. IF we get out, that is.”
[From this point forth, McMillan and Wright walked together.]
Wright: “So… you SCP folk. Do you get dental?”
[McMillan can be heard letting out a hiss sound, as to silence the GOC Agent. Wright makes a few more attempts at small talk, which McMillan shuts down with stern looks and stroking her gun.
The pair walk together.
9 hours after first being trapped, McMillan decides to break camp.]McMillan, exhausted: “Let’s stop for today. Eat something. Sleep.”
Wright: “Oh wow, you can talk?”
McMillan: “Shut up. We’re trapped in a potentially endless tunnel, excuse me if I don’t feel like chit-chattering.”
Wright: “Gee, way too see the cup as half empty. There’s a reason why I joined the GOC. You guys are so pessimistic”
McMillan: “And you seem to be full of naive optimism. Sealing this thing? Really?”
Wright: “Not doing anything? Really?”
McMillan: “Taste like shit usually. We’re supposed to add cold water. It’s better with hot water, though. Gotta say.”
[After eating, Wright and McMillan begin to converse more. Wright shares anecdotes and stories about her GOC time, which have been requested to be omitted from GOC Official Steven Zhou, to which the foundation complied.]
Wright: “So there is that. Anyway, who are you anyways? Do you have an age? Husband? Children? A personal life?
McMillan, reluctantly: “Alright. To answer your question; 32, No, No and no. My wife left me a year ago. Told me I was ‘cold’. I suppose that’s what a person will become, after being exposed to unimaginable horrors on a daily basis.”
Wright: “Hah! I feel you. Girlfriend left me a month after I had to kill my long time squad member, because he contracted an illness that made you slowly go rampage. Can’t imagine why she left me.”
[After conversing for another hour, both decide to sleep in their sleeping bags. After 5 hours, McMillan wakes followed by Wright. They consume another ration and begin walking.
The next 7 hours show unremarkable footage of the two walking the tunnel, conversing, taking occasional breaks and engaging in activities, such as sprinting for a Kilometer to determine who runs faster.
Approximately 26 hours after first entering, McMillan notes a slight, but considerable smell of rotten flesh.
500 meters later, a carcass is seen in the distance.
Both complain about the smell.
They pass the late-stage decomposing carcass]Wright: “God, that smell. Jesus, that’s a dog.”
McMillan: “There is barely anything left on that thing, how can you tell?”
Wright: “Studied Biology, remember? That skull is definitely canine. Let’s get out of here!”
McMillan: “We should analyze it, to see if there is any wron-”
[Wright is seen pacing away from the dog, McMillan audibly sighs and follows. The next 25 hours were again uneventful. By the third time they slept, they had marched around 174 Kilometers. Approximately 51 hours after first entering, Wright notes a faint smell of yet more decaying flesh.]
Wright: “It’s getting worse, the closer we get! What is it this time?”
McMillan: “I’ve got my suspicions…”
[500 meters after first noticing the smell, a human carcass dressed in a bright orange D-Class uniform can be seen.]
Wright: “Oh god… that’s a human.”
McMillan: “D-Class. We sent it here before we came. How come he didn’t even manage a week?
He’s still got water…”Wright: “That’s a man, Susan. Stop talking about him as though he’s an object.”
[Wright kneels before the carcass, analyzing it by utilizing a pencil to move clothing and loose tissue out of the way.]
Wright: “No signs of larvae nesting. Every fly would starve here. He is still decomposing on a bacterial level, though.”
McMillan: “Can you determine the cause of death? He should’ve had enough ratio-”
[McMillan grabs a bag, located behind the carcass' head, sifting through it.]
McMillan: “Well. He’s got water and food for weeks.”
Wright: “I don’t think he starved. That puddle around him looks like decayed fat. I can’t determine his age without tools, but he clearly doesn’t look fit enough to make this journey. Could be a heart attack or a stroke.
So, your people send him to his death, Susan. For what, exactly?”McMillan: “The eggheads throw D-Class at SCPs all the time. Most of them deserve it. Murderers, rapists, etc. “
Wright: “Is that what you tell yourself?”
McMillan: “I’m in an MTF, Steph. This is not my responsibility. I’m ready to sacrifice everything for the greater good. So a murderer should too.”
Wright: “You’re unbelievable.”[Wright paces away from McMillan.]
McMillan: “Steph, wait! Please, don’t lea-”
[A loud beep can be heard coming from McMillan’s equipment, indicating the low battery status of the camera and audio recording device.]
McMillan: “Oh shit, I forgot the batter-”
[Camera feed abruptly stops, as they run out of power.]
67 Hours after the doors closed on McMillan, they began to open again. An hour later, Susan McMillan and Stephanie Wright are seen, by personal standing by, pacing toward the entrance. They emerge from SCP-XXX holding hands and exhausted.
Note: After requesting information on Stephanie Wright from the GOC, it was determined that nobody with that name works for the GOC. In a separate, unrelated experiment a person with identical name and genetic makeup to the emerging Stephanie Wright was discovered in —, -- Florida.
A request to further explore SCP-XXX’s interdimensional aspect is currently pending.
