fragment:NullnNow A Superposed Door - 5
SCP_Door_Blue

SCP-XXXX

Item #: SCP-XXXX

Object Class: Safe

Special Containment Procedures: SCP-XXXX is to remain in Vault-12, and should not be entered without approval from the current site director.

Description: SCP-XXXX is a wooden door. Upon stepping through SCP-XXXX, an individual becomes superposed between an unknown amount of realities. Said individual will remain in this state until someone checks which reality they are in, destroying the other realities in the process.

A better explanation of this anomalous effect can be seen in the "Schrodinger Cat" thought experiment. If a cat is in a box, an outside observer would be unable to know if said cat was dead or alive without opening the box. As such, until the box is opened the cat is both dead and alive. This special state of being collapses upon opening the box, wherein the cat is either dead or alive.

Similar to how the cat can be both dead and alive, subjects who enter SCP-XXXX exist in multiple realities at once. Furthermore, like said cat, a subject inside of SCP-XXXX will only exist in one of those realities when someone checks their location. This can occur by communicating with said individual, or by reading transcripts of past conversations.

Addendum 1:
The following is an experiment log recorded by Junior Researcher Grey. It should be noted that this experiment was originally supposed to be performed by Dr. ███████, while Ms. Grey observed and helped when necessary. However, due to a last minute familial issue, Dr. ███████ was unable to perform this experiment, and authorized Ms. Grey to perform it in his place.

Note from Dr. Grey:
I am so excited! My first SCP! I cant wait!

Date: September 8, 20██
Time: 6:38 PM

Procedure:
D-3903 was given a portable communication device, and was instructed to enter SCP-XXXX. Below is a recorded transcript of said device.

D-3903: I see a waterfall with a pond at its base. It is in a small forest clearing, and all around me are trees. I can't see where the waterfall is flowing from.

Dr. Grey: Would it be possible for you to get a closer look, try and figure out where the waterfall originates from?

D-3903: Sure.

The sound of rushing water can be heard as D-3903 gets closer to the waterfall

D-3903: That's odd, the lake is the source of the waterfall.

Dr. Grey: What do you mean?

D-3903: It appears like the water is flowing upwards, although I have no idea how it is doing so.

Dr. Grey: That's so cool! I love this type of shit! Are there any other anomalous properties that are observable?

D-3903: There are some red birds circling around the waterfall, although I can't get a good look at them. They are pretty high up.

Dr. Grey: Ah, that's a shame. I wonder what type of diet they have, are they herbivores or carnivores? Maybe even omnivores… God, I wonder…

D-3903: There is a rock by the pond. If you like I could sit down and wait here for a few hours. Ya know, see if any come down here to rest and what not.

Dr. Grey: Go ahead, D-3903.

The next 72 minutes are spent in relative silence with nothing to listen to but the waterfall

D-3903: So, I've got a question.

Dr. Grey: Ask away.

D-3903: How the hell did you start working at the Foundation? I mean, I imagine applying for a company that you don't even know exists must be pretty hard.

Dr. Grey: That's the funny thing. When I first joined the Foundation I had no idea what I was getting myself into. It was my senior year of college, and I was trying to get an internship. Eventually, I got one for a company called ██████████. It turns out ██████████ was actually just a front company, being used to contain something

D-3903: What?

Dr. Grey: I don't know. I don't have the security clearance needed to access the specific files related to ██████████… Or at least, not the security clearance needed to get the juicy stuff.

D-3903: So what happened then? I mean, I doubt this expedition you have sent me on is just part of a front company.

Dr. Grey: Ha, yeah. It was funny, after a month or two of working at ██████████, the manager must have thought I was special or something. He brought me to his office one morning, and introduced me to the Foundation and it's goals. It was then that my perception of reality forever changed.

D-3903: Talk about it, I mean, I'm still not sure where the fuck I am. The last normal thing I remember seeing was the door I walked through. Altho-

D-3903 suddenly stops talking, and a few seconds later a loud growling sound can be heard

D-3903: Shit! Shit! Shit! Shit!

Dr. Grey: D-3903, what's going on?

The sound of flapping and growling can be heard, followed shortly by a splashing sound. A few seconds later the sound of coughing can be heard

D-3903: I got attacked by a bird. It landed a few meters in front of me. After a few seconds it started growling and tried to stab my eyes out. I managed to dive into the pond, only for the damn thing to dive in with me. I noticed that the door was located at the bottom of the pond, so I swam as fast as I could towards it.

Dr. Grey: I see. Where are you now?

D-3903: I don't know... | I'm in a small stone room...