Addendum.1: The first record of anomalous behavior is traced to 
[DATA EXPUNGED)] after the opening of the campus. It is unknown 
whether this incident was the cause of or a consequence of 
SCP-3964. The civilian student involved had jumped to his death 
from the top of the stairwell. The cause of death was severe head 
trauma, consistent with a fall of 25 meters2. Investigation revealed a 
history of depression. 


Similar cases followed for years after the initial incident. Witnesses 
describe the suicides as “spontaneous” and “unexpected”, but the 
Foundation had no evidence to suspect that this might be a site of 
an anomaly. After several years, SCP-3964 was being referred to as 
the "Suicide Staircase" by the student body. 


SCP-3964 first came to the attention of the Foundation following 
Incident-3964-1. A caucasian woman (designated SCP-3964-2-A) 
was observed to have used SCP-3964 to walk from the first floor to 
the second landing where she then jumped and landed unharmed 
on the floor below. In attempts to describe the experience to others 
a field agent assigned to the area learned of the SCP-3964-2-A's 
experience within SCP-3964-1 and notified the Foundation. 
SCP-3964-2-A was then detained, debriefed, and given a Class-C 
amnestic before release. A notebook recording her experiences of 
her time in SCP-3964-1 was collected for study along with her 
cellphone and other belonging. Afterwards, the Foundation bricked 
off SCP-3964 and built Site- -B. 


+ Transcription of notebook confiscated after Incident-3964-1 
| don’t know where | am. 


| mean... This shouldn’t be possible right? | 
was only trying to get to the second floor of the 
library and now I’m stuck in some endless loop 
of stairs. It’s been about an hour that I’ve been 
walking around and nothing. It’s just endless 
floor after floor. When | lean over the edge it 
just seems to stretch on forever and ever in 
both directions and | get this weird pull in my 
gut. You know, that weird feeling you get 
standing super close to the edge that just 
kinda whispers “jump”? It’s unnerving so I’m 
going to stay away from the edge from now on. 
| honestly don’t know what I’m going to do. I’ve 
tried the doors on either side of each floor but 
they’re all locked. This is scary. Which is why | 
guess I’m writing in you. There’s no reception 
in here either. There’s nothing here except the 
thoughts in my head. | keep thinking I’m going 


to run into someone, that I'll hear someone. 
Sometimes | think | do hear something but it’s 
just silent. But like a loud silence ya know? 
Heavy and stuff. It doesn’t help that it feels air 
conditioned in here despite the fact that | 
haven’t seen a single vent or air conditioner. | 
tried shouting but my voice just echoes on until 
it fades away. That’s a little spooky so | don't 
think I'll try it again. Besides, what would | 
even do if someone answered? Something? | 
don’t even want to think about it. This place 
doesn’t feel natural, it obviously isn’t, so | don’t 
want to push my luck. 


| also think I’m going to start counting floors. 
Idk how many floors I’ve already walked down 
so I’m just going to count this as number 1 and 
go from there. I'll start heading up again since 
going down doesn’t seem to be working. 


Notes: We suspect SCP-3964-2-A was walking down in 
an attempt to find where she entered. At the bottom of 
the page she drew the number 1 in bubble-letter font. 


I’m on floor 206, it’s been 6 hours, and my 
phone battery is going to die soon but I’m 
dying of boredom. | decided to just fuck it and 
play a few games but that drained my battery a 
lot. | probably shouldn’t have done that 
because | just realized there aren’t any clocks 
in here and my phone is my only source of 
telling time. And even though counting the 
floors and hours is making me crazy | think it'll 
be even worse without knowing the time. I’m 
so fucking stupid. I’m just going to leave it on 
low battery mode and hope for the best. | 
doubt it'll survive another 6 hours though. 


I’m also super exhausted. It’s about 8 o’clock 
now and | got up at like 4 and all this walking is 
tiring. Maybe whatever trapped me in here is 


trying to make me exercise? Well. Whatever it 
is | don’t really want to go to sleep. And there 
isn’t even anything suitable to sleep on. | 
guess | could collect a bunch of paper towels 
from each floor and make a bed? But what if 
something creeps up on me while I’m 
sleeping? | doubt | could sleep anyways. | 
guess... I'll just keep walking until | pass out 
from exhaustion. There’s nothing better to do. 


Notes: At the bottom of the page she drew a rococo- 
styled 206. The next few pages are filled with 
miscellaneous doodles. 


| think I’m going to die in here. | finally gave up 
last night and slept in one of the bathrooms, 
which was the only place | could turn off the 
damn lights. | did collect a bunch of paper 
towels and made a bed and used my jacket 
and backpack as well. It’s about 3 in the 
morning now and | can’t sleep anymore. | still 
feel exhausted but my mind won't let me rest. 
I’m also starving. | just realized that | didn’t eat 
last night. | guess the good thing is that 
nothing has attacked me yet which either 
means there’s nothing but me in here or 
whatever is out there is trying to lull me into a 
sense of comfort. I’m honestly not sure which | 
would prefer at this point. | just wish if there 
really is some monster it'll just get it over with 
an kill me now. All this waiting is unbearable. 


There’s a vending machine on every floor, all 
with the same snacks (there are some tuna 
salad sandwiches so that’s good), but | don’t 
have that much cash on me. If | don’t get out 
of here today I'll just have to smash them open 
with something. There are a few fire 
extinguishers around so I'll probably just use 
one of those or something. At least there’s 


« SCP-512 | SCP-513 | SCP-514 » 


water fountains so | don’t dehydrate but 
apparently even in weird limbo spaces water 
fountains are still disgusting as hell. 


Notes: She drew a swirly 257 at the bottom of this page. 
Our lab found traces of bread crumbs suggesting she ate 
while reading this over. 


This is floor 413... | think. I’m starting to lose 
track. The silence and the cold air is numbing 
my mind. | might've skipped counting a few 
floors or lost count somewhere. | can’t be sure. 
| have a sharpie so | think I’ll start writing the 
floor numbers on the water fountains because 
it's a shiny eye catching place. Maybe | should 
leave little messages if anyone else gets stuck 
here? | hope no one else gets stuck in here 
but | mean... | might as well right? It’s not like 
I’ve got anything better to do. 


Notes: She drew an interesting looking 413 at the 
bottom of the page, next to a small doodle of some 
cartoon character wearing triangular sunglasses. Dr. 
Robert informs me that this is a reference to something 
called Homestuck. 


SOMEONE ELSE WAS HERE. 


They left a note! It’s written in lipstick on the 
mirror in the bathroom which is a little 
disconcerting but it means I’m not the only 
one! | took a picture of it on my phone, which 
is now at 3%, but | think it was still a worthy 
use of the battery life. | wish | remembered to 
bring my charger this morning. It occurred to 
me while | was eating breakfast that the 
vending machines use outlets. But | don’t have 
my charger anyways so the point is moot. 
Anyways, the note reads “Fuck this sexist 
place. No tampons.” 


Which | assume is referring to the fact that the 
girls bathroom is on the other side of the 
library and this is the boys bathroom and 
whoever wrote it was probably on her period. 
Yikes. Good thing my flow just ended a few 
weeks ago so that’s not a problem for me. At 
least... | hope it doesn’t become a problem. | 
won't be here that long will 1? 


No no. | won't. I'll find a way out. | know | will. 
I’m on floor 474 right now. Maybe 500 will be 
my lucky number? Only one way to find out. I'll 
look for more clues along the way since that 
was the only note she left on this floor. 


Notes: She wrote “1/474 not enough tampons” at the 
bottom of the page. Dr. Robert is laughing. 

Edit: It has been confirmed that a picture of the 
described message was found on the collected 
cellphone. 


So I’m officially out of cash. I’ve passed floor 
500 if you were curious. Probably not because 
you're just a notebook. I’ve never broken 
something before but | guess there’s no real 
good time to begin a life a vandalism. | want 
that 3 musketeers really bad, and yes, I’m 
totally willing to smash open a vending 
machine to get it. Whatever entity that’s 
keeping me here can go and suck it. If it’s 
going to withhold chocolate from me like this 
then I’m going to have no qualms about 
breaking it’s shit. Here goes nothing. 


Notes: At the bottom of the page she wrote the number 
621. 


My phone is dead. I’m getting really tired so 
I’m going to assume it’s night. I’m currently on 
floor 730 so | guess I'll call it quits for the day. | 
just decided to fuck it and eat a bunch of 


candy bars for dinner, which in hindsight 
probably wasn’t the best idea. Now I’m cold, 
numb, and my throat feels like acid. None of 
the doors work but I’ve been checking them at 
every floor. At least | hope | haven’t forgotten 
one. Wouldn’t that be a kicker? The one exit 
that actually works and | blanked past it. 
Probably not but it’s a depressing thought.| 
haven’t found anymore notes from that 
woman. | wonder if she’s still stuck in here. 


Anyways. | should get to bed. I’ve got another 
busy day of just... Walking up stairs. Forever. 


Maybe | should just jump and end it all lol. 
Well. Goodnight book. 


Notes: She doodled a bunch of snakes in the shape of 
the number 730. 


Floor number 800. Nothing. 
Notes: N/A 

Floor number 900. Nothing. 
Notes: N/A 

Floor number 1000. Nothing. 

What a surprise. 
Notes: N/A 


Fuck me. | smashed open another vending 
machine and cut my hand on a piece of glass. 
I’m such a fucking stupid clutz. It hurts really 
bad and there aren’t any medkits in the 
bathrooms. | just bandaged it up with some 
paper towels. Can | get an infection in here? 
So far there doesn’t seem to be anything else 
alive besides me. Who knows. Who fucking 


cares. 
Hurts like a fucking bitch though. 


Notes: No floor number was written on this page. But 
there are a few blood smears. This entry brings up an 
interesting experiment about microbial life within 
SCP-3964-1 to be explored later. 


| can’t believe | didn’t think of it sooner. | 
grabbed one of my pens and dropped it off the 
side of the railing. | know | said | was going to 
stay away from the edge but | had to watch it 
fall. I'm not sure what | was expecting really. 
The sound of impact probably but it never 
came. The pen just... Kept falling until it was 
just a speck and until | couldn’t see it 
altogether. | wonder if it’s still falling. | wonder 
if | would just keep falling forever if | jumped. It 
would probably be better than this endless 
wandering around that’s for sure. 


| think the silence is getting to me. 


Notes: She wrote 1242 at the bottom of the page. The 
next dozen or so pages are just doodles and some short 
poems. 


| can’t say how long I’ve been in here. It feels 
like forever but it can’t have been more than 
like 3 days. I’m starting to feel tired again 
which means it must be night. Not that day 
cycles even exist in this hell hole. Maybe that’s 
what it is. | died or something and I’ve gone to 
hell. I'm an atheist so that puts a real damper 
on things if that’s true. Or maybe it’s 
BECAUSE I’m an atheist that I’m stuck here. 
Damned here. Whatever. 


Anyways. Day 3 stuck in hell/purgatory over. 


Notes: A the bottom she wrote 1278. It is unclear 
whether a short amount of time had passed between the 
last entry and this one or if she had just stopped for a 
while to draw. | suspect the latter is true. 


Today | woke up and just laid there for hours. 


| tried to imagine | was just at home in the 
darkness but the hard tile floors make it a little 
hard to put myself into that fantasy. Also my 
house doesn’t have air conditioning so there’s 
that. At the very least, turning the bathroom 
lights off and closing the door makes me feel 
like I’m blanketed in shadows. | just laid there 
in the dark, listening to my crying echo around 
the room. It’s somewhat comforting.In the dark 
the walls around me don’t have to exist. Or 
they can be as small as | want. I’ve never been 
claustrophobic before but | wonder if | will be if 
| ever get out of here... 


There’s a steady ringing in my ear that I’m not 
sure is real or not. | started noticing it a little 
yesterday but it’s pretty apparent now. It’s like 
a static noise, high pitched and almost 
inaudible. Like overtones in music. I’m 
probably imagining it which doesn’t really help 
me feel better at all. 


Anyways, | did eventually get up and keep 
walking. My little crying self-pity session 
helped me gain some energy back. | actually 
took to running a bunch of floors just to distract 
myself from thinking too much. It worked pretty 
well for a while until | stubbed my toe and 
tripped. | guess that’s why they tell you not to 
run on stairs. I’m lucky that | didn’t tumble 
down them and break something. Because 
that would just take everything home wouldn't 
it? Being on an infinite staircase and being 


unable to walk? 


| think I'll just stick to my regular, snail-paced 
walking from now on. 


Notes: At the bottom here she doodled the number 1413 
and next to it there is a drawing of a character with three 
buck teeth that Dr. Robert informs me is yet another 
Homestuck character. 


| think | see another note. There’s something 
pinkish-red a dozen or so floors up. | know | 
said | wouldn’t run again but I’m going to break 
that rule just this once. 


Notes: N/A 


It is another note from the same girl. It’s written 
on the water fountain right where | write my 
floor numbers (I wrote this one on the left 
door), still in that lipstick. It says “I miss Duke”. 


| wonder if it’s her boyfriend? Or maybe it’s her 
dog. Both? 


| get that though. | miss my little brother so 
much. This is my fourth day here (I think) so 
he must be worried sick about me. | hope 
someone picked him up from school when | 
didn’t show up. | wonder if anyone’s looking for 
me? 


Notes: At the bottom here she wrote the number 1548. 
Edit: Looking into files of SCP-3964’s past victims, one 
female of Latino descent has been found who had a son 
named Duke. 


End of day four. Floor 1600. A nice round 
number to stop on. 
| ate a bag of peanuts for breakfast. 


| don’t know why | did it, because | hate 
peanuts. Maybe that initial feeling of disgust 
reminds me that I’m still here. | exist. I’m not 
crazy. It was something different for once. 


Or maybe I’m just going crazy. 


Notes: She wrote the number 1674 at the bottom of the 
page. 


What If There Is No Exit?? 


Notes: This is written in large letters taking up an entire 
two pages. Nothing else is written. 


End of day five. Floor 2000. 
Notes: N/A 
| found her last note. 


It’s on floor 2112, not that these numbers even 
fucking mean anything. 


God. I’m so angry. Or sad. Both. Everything. 


My phone is dead too and | just wish... | wish | 
could’ve taken a picture of her last words. She 
wrote it on the bathroom mirror again. One 
word for each of the three mirrors: 


I’m. Gonna. Jump. 


Did she make it out??? | mean if she did 
someone would’ve heard about it right? Or 
they would just think she was crazy. Maybe 
she’s still falling? Did she DIE? 


| don’t know. | don’t know if | want to know. 


All | Know is that I’m actually alone now. 


This mysterious girl isn’t just a bunch of floors 
above me. She didn’t find an exit. She just... 
Gave up. 


Maybe | should too. 
Notes: N/A