Analysis of D-4f68a's video footage is unable to 
reveal cause of communication blackout. Equipment 
error is ruled unlikely. Due to the circumstances 
surrounding D-4f68a's disappearance, and the 
possibility of an unknown anomalous object or entity 
in the upper portion of SCP-3333, another expedition 
is proposed and approved. 


Addendum 3333.2: Exploration II 


+ Access Exploration Log 


Mission Parameters: Determine the reason behind 
the disappearance of D-4f68a, locate any anomalous 
objects located by D-4f68a, and identify any 
anomalous entities present within SCP-3333. 


Personnel: MTF Mod-0 ("Characteristic 
Eigenspaces") 


Additional Information: All members of MTF Mod-0 
were equipped with standard-issue survival gear and 
recording equipment. No special items were deemed 
necessary. All batteries and backups were triple- 
checked. Doctor Williams supervised from base 
camp. 


[LOG BEGIN] 

Mod-1: Mod-1, check. 

Mod-2: Mod-2, check. 

Mod-3: Mod-3, check. 

Mod-4: Mod-4, check. 

Mod-5: Mod-5, check. 

Mod-1: Ok, everyone. Standard-issue tower 
approach. Two ahead, one in the middle, two 
behind. Let's go. 


All team members begin to ascend SCP-3333. No 
figures are visible on nearby ridges. The sky is 
overcast, and the wind is audible. As the MTF 
climbs, the wind dies down. 


After several hours of climbing, Mod-4 and Mod-2 
encounter the room where D-4f68a attempted to exit 
SCP-3333. The furniture is still in a state of disarray, 
and nothing appears to have been moved. 


Mod-1: Here seems as good a place as any. 


The members of Mod-0 gather and attempt to mount 
an expedition outside of SCP-3333. Mod-2 is 
attached to a rope and exits SCP-3333. There is no 
strong wind, and Mod-2 is easily able to leave. 


Mod-2: There's nothing here. Doctor? 


Williams: That's strange. | suppose it died down. 
Keep explor- 


Mod-2: Hang on. [Pauses] Gouges on the wall here, 
by the door. Scratch marks. They're not very big, 
but- [Inspects more closely] -Jesus, they're pretty 
deep. 


Williams: Copy that. Keep exploring. 
Mod-1: Roger. 


The members of the MTF exit SCP-3333 and begin 
to explore. The topology around SCP-3333 is 
identical to that surrounding the Fremont lookout. No 
plant or animal life is visible. No humanoids can be 
seen. The members of the MTF explore for several 
hours, then reconvene at SCP-3333. 


Mod-3: There's nothing here. 
Mod-4: No plant life, though. That's strange. 


Williams: If this pattern holds across the world here, 
that could account for the stronger wind patterns. 
Not sure where the oxygen would come from, 
though. 


Mod-5: You know what's weird, now that I'm thinking 
about it? Do you smell that? 


Williams: What do you mean? 


Mod-5: There's this real faint smell, like hot metal or- 
or burning hair, or something. Anyone else smell 
that? 


Mod-3: [Pauses] Yeah. That's really bizarre. It's just 
barely there. [Walks around] | don't know where it's 
coming from. 


Williams: Yes, that is strange. [Pauses] Let's move 
on. 


Mod-1: Roger. 


The MTF ascends for several more hours and camps 
for the night. Their pace is slower than that of 
D-4f68a; they ascend SCP-3333 for several more 
days with no notable encounters. No auditory or 
visual hallucinations are noted. On the fourth day, 
they arrive at the apex of SCP-3333. 


Mod-1: Flashlights out, everyone. 


Members of the MTF equip their lanterns and 
flashlights. All are fully equipped with batteries, and 
backup batteries are double-checked. Apart from 
that made by the MTF, there is no sound and no 
light. 


Mod-1: Alright. Two one two again. Arbitrary 
direction...oh, let's go that way. 


Moa-1 points at a random direction, and the MTF 
proceeds in that direction. Reflector markers are left 
for navigation. 


The SCP-3333 iterations are connected horizontally, 
through their external walkway. There is no stairway 
down, and the railings have been removed such that 
the walkways can be pressed up and joined with 
each other. There is no sign of seam between the 
walkways, and no trace of manmade workmanship. 


Mod-2 pulls up a board at random from the walkway. 
There is nothing but blackness below. Mod-2 drops a 
glowstick into the hole; no bottom is visible. Mod-3 
fires a signal flare into the air; no ceiling is visible. No 
sound or light appears. 


Williams: Do you notice anything strange? 
Mod-4: Such as? 


Williams: Any of the hallucinations reported by 
D-4f68a; anything that could indicate what he was 
talking about near the end. 


Mod-1: No. No sign of the body or equipment either. 
Do you want us to prioritize that? 


Williams: | think it would be somewhat helpful if you 
could. There doesn't appear to be a pattern or 
purpose to these rooms, anyways. 


Mod-1: Roger. 


The MTF splits up and begins a radial search pattern 
from the origin. This continues for approximately an 
hour. Intermittently a light, echoing chattering sound 
is picked up by all four microphones, but none of the 
task force members seem to hear it. 


Mod-3: | found something! 
Mod-4: What? 

Mod-2: What is it? 

Mod-1: Coming. 


Members of the MTF gather. En route, Mod-5's 
flashlight cuts out. 


Williams: What is it? 


Mod-3: It's his backpack. Completely empty. It hasn't 
been torn or anything though, just sort of... singed? 
It's hot. 


Mod-4: No sign of a struggle. [Inspects more closely] 
There's hair all over this thing. Orange and- 


Mod-2: Was it propped up against the table when 
you got here? 


Mod-3: Yes. | haven't touched it. 


Mod-1: Good; let's not. [Pause] Where's Graham? 
[Pause] Graham? Everyone, check in! 


Mod-2: Mod-2. 
Mod-3: Mod-3. 
Mod-4: Mod-4. 


Mod-1: We're missing Graham. Do you have a feed 
on his camera, Doctor? 


Williams: N-no. His flashlight's out. | can't see 
anything. [Hesitates] Do you hear that? 


Mod-1: Hear what? 


Williams: Your mics are picking up a sound. 
[Pauses] | can barely make it out. 


Mod-1: Roger. Two by two. I'll go with Horace. 
Radial pattern out from here. 


Mod-2: Right. 
Mod-3: Okay. 
Mod-4: Yes. 


Mod-1 and Mod-3 pair up. Mod-2 and Mod-4 pair up. 
They begin a radial search pattern. There is still no 


sound. Doctor Williams plays back Mod-5's camera 
footage prior to loss of communication; there is no 
sign of distress. The camera is transmitting, but is 
completely black. 


Mod-2 and Mod-4 fall over. There are two loud 
sounds, presumably their bodies hitting the floor. A 
faint crackling sound can be heard, as well as the 
aforementioned chattering. Microphones and 
cameras on both cut out near-simultaneously. 
Mod-5's camera and microphone shut off. 


Williams: Hello? Hello! We've lost feed on Mod-2 
and Mod-4! 


There is another thud. Mod-3's microphone and 
camera cut out. 


Williams: Hello? Mod-1? 
Mod-1: What—what just happened— 
Williams: | don't—where's Mod-3? 


Mod-1: | turned away for a second, and now there's 
— eo 


Mod-1's headlamp rapidly scans the surrounding 
area. No sign of the rest of Mod-0 can be found. 


Mod-1: [Into the darkness] Hello? [Pause] 
[Whispering] II think there's something in here— 
with me— 


Williams: What? What is it? Do you see words? 
Mod-1: No, | don't see anything— 


All four cameras and microphones reactivate. This is 
not simultaneous; it is consistent with the equipment 
manually being activated. 


Mod-5: Hello? Hello? 


Williams: The equipment's on—what the hell 
happened? 


Mod-3: | dunno, Doc. There was something on the 
ground, and | tripped, and— 


Mod-1: Where are all of you? Check in! 
Mod-2: Mod-3. 

Mod-3: Mod-5. 

Mod-4: Mod-2. 

Mod-5: Mod-4. 

Mod-1: Th— 


Mod-1's microphone and camera suddenly cut out. A 
light rustling sound is audible over the other 
microphones. A similar light crackling sound is heard 
shortly afterwards. 


Mod-2: Mod-1? Hello? 

Mod-1's camera and microphone reactivate. 
Mod-1: I—I saw it too— 

Mod-3: Yes— 

Williams: What? Saw what? 


Mod-4: | don't know—it's spectral, like floaters— 
lights in the sky— 


Mod-5: Something here isn't right. 
Mod-2: No. We need— 


Mod-4: It isn't safe here— 


SCP-431: Dr. Gideon 


Item #: SCP-431 
Object Class: Euclid 


Special Containment Procedures: Backup copies of all 
Foundation documents are to be kept at Site- . Any documents and/ 
or photographs SCP-431 is found in are to be stored in the Site- 
local database and replaced with their backup copy. Any personnel 
who report recalling SCP-431 are to be immediately questioned. 
Office -25 is to be inspected daily for any new objects. Foundation 
archives are to be monitored for any changes or new documents 
regarding SCP-431. 


Description: SCP-431 is the designation given to Dr. Gideon, a 
man who appears to have been a Foundation researcher. Due to the 
condition of records at present, it is not known if Gideon is his real 
name. The existence of SCP-431 was first discovered during what 
appeared to be an attempt to hack the Foundation database: a 
number of documents were altered to state that a scientist referred 
to as "Dr. Gideon" was involved in researching several SCP objects. 
However, it was determined that the documents in question were not 
being accessed at the time that they were modified. 


Since the initial event, references to a Dr. Gideon have appeared in 

additional documents. Every time a document has been altered, it 
has been shown that it was not in use at the time of modification. 
Several new documents also appeared, a number of which are SCP 
documentation of items that the Foundation does not currently 
possess, including a [DATA EXPUNGED], and one item, a [DATA 
EXPUNGED)}], which is known to currently be in the possession of 
Marshall, Carter, and Dark Lid. 


A number of objects have also been discovered in Office -25, 
which is currently vacant. It is not known when items began to 
appear inside it, as the office was only investigated when a "Dr. 


Williams: What are you talking about? 


Nothing besides the Fremont fire lookout is visible on 
any camera. 


Williams: Is there anything with you? 
Mod-1: N-no—it's not that, Doc— 
Mod-4: There! Do you see it, Doc? 
Nothing is visible. 

Williams: No! What is it? 

Mod-3: W-we're not safe here. 

Mod-2: Something's not right. 

Mod-1: [Breathing rapidly] It's—it's there! 
Williams: What is it? 

Mod-1: It's—it looks like a— 

[Pause] 

Nothing is visible through any MTF feeds. 
Mod-1: It's like—uh— 

Mod-3: It looks like a castle—or no! A mountain! 


Mod-4: A mountain! A ghostly mountain! But—but it 
isn't— 


Mod-5: It's—a flaming mountain, conjured of smoke 
and air. A tower of smoke and ash— 


Mod-3: | see it! There's flames everywhere! There's 
something in the fire! 


Mod-1: | see it too! Everything is on fire! I'm burning! 


Oh God, oh God! I'm burning! 
Mod-5: We need to go! Retreat, everyone! 


[END LOG] 


MTF Mod-0 retreats from the apex of SCP-3333, and 
proceeds rapidly down SCP-3333. Several days 
later, they arrive at base camp and are debriefed. 
They express confusion over the events within 
SCP-3333, and show a definite unwillingness to 
reenter. Given the circumstances, and the possibility 
of a memetic agent, a special counter-memetics 
operative is brought in for further exploration over 
the objections of MTF Mod-0. 


Addendum 3333.3: Exploration III 


+ Access Exploration Log 


Mission Parameters: Explore the apex of 
SCP-3333, and locate and neutralize any memetic 
anomalies or agents inside. 


Personnel: Counter-Memetic Specialist 0 
("Nullwalker") 


Additional Information: Specialist 0 is a deaf-blind- 
mute, and communicates solely through a modified 
signaling system embedded into their hand. 
Standard-issue rations are provided. No other 
equipment is necessary. Doctor Williams and MTF 
Mod-0 supervise the operation. 


[LOG BEGIN] 
0: LEAVING BASE NOW 


Williams: Let us know if you need anything. 
0: YES 

Specialist 0 begins to ascend SCP-3333. 
Mod-5: [To Williams] | don't like this— 


Williams: If it was frightening enough to make your 
crack team turn tail and flee, it is certainly worth 
calling in Annette. 


Mod-5 does not respond. Specialist 0 continues to 
ascend. 


0: ROOM DIFF. MESSY. FIGHT? 
Williams: No, that was us. 


0: OK. [Pause] SOMETHING MOVING. SMALL. 
HOT. [Pause] GONE NOW. 


A few hours pass. 
0: SOMEONE OUTSIDE. WATCHING. 


Williams: They were encountered earlier. If you 
keep going up— 


0: AM. STILL FOLLOWING. WAS WRONG. NOT 
WATCHING. SOMETHING ELSE. 


Williams: What do you mean? 
0: DON'T KNOW. 


Specialist 0 continues climbing for several more 
hours. At this point, Specialist 0 has been climbing 
for over 12 hours. 


Williams: Don't you need to rest? 


0: SOMETHING STILL THERE. NOT SAFE. WILL 


USE AMPH. 


Specialist O consumes 100 milligrams of 
amphetamine and continues to ascend. 


0: OUTSIDE. CAN YOU SEE? 
Williams: No, | can't— 


There is a flicker of motion on the edge of the 
camera. Something looking through the windows 
ducks down as soon as the camera is turned in its 
direction. The wind is strong; there is no chance of 
going outside. The same light chattering sound from 
previous explorations is heard inside the room. 


Williams: There's— 
0: IT KNOWS. 


Specialist 0 begins to rapidly climb upwards. Flickers 
of motion are occasionally visible outside SCP-3333. 
Small rustling sounds can occasionally be heard 
over the wind. High pitched laughter is distinctly 
audible on Specialist 0's microphone. 


Mod-5: Retreat, specialist! 
0: NO 


Specialist 0 continues rapidly climbing. After 
approximately an hour, they arrive at the apex of 
SCP-3333. 


0: BLOOD. NO LIGHT. HOT. 


Specialist 0 starts walking. They do not turn their 
flashlight on. Nothing is visible on the camera; only 
Specialist 0's footsteps are audible on the 
microphone. A loud slam is audible in the distance. 


0: HERE. 


[Pause] 
0: NO HAZARDS? 


Specialist 0 begins walking faster, then stops 
suddenly. Several small rustlings and chatterings 
can be heard; they quickly cease. 


0: BODY. 


There is a sound of shifting clothing as Specialist 0 
bends down. The sounds can be heard again, louder 
and closer. 


Mod-5: Get out of there, Specialist! 
Williams: Annette! 


Several crackling sounds can be heard. An 
animalistic bark is heard. Something laughs. 


0: BODY. BLOOD. [Pause] INTERNAL ORGANS. 
MUSCLES. HARD. BURNED. [PAUSE] FUR. HAIR. 


The rustlings grow in size, getting closer and closer. 
They surround Specialist 0 and overlap, turning into 
one continuous drone. 


Mod-5: Get out, Specialist! Leave it! Go! 

0: METAL. WORDS. HOT. 

There is a thud. 

0: 

TITTTITTITTTITTT TTT TTT TETETTITITITTETTTEETTITIT ITT 
ETETTETE 

Williams: Annette? ANNETTE? 

0: LIGHTS LIGHTS OUT WHERE IS LIGHT 


Williams: ANNETTE! 


0: THERE IS A DEMON ON THE MOUNTAIN. | 
NEED TO COME DOWN. WHERE IS THE LIGHT? 


Williams: Annette... 


Specialist 0's flashlight turns on. Specialist 0 is laying 
on the ground. The light illuminates a smoldering pile 
of burned muscles, organs, and bones nearby. A 
warped metal dog tag is visible clutched in Specialist 
0's hand. It reads "MTF Mod-5: Graham Purcell." 


[DATA EXPUNGED] 


Addendum 3333.4: DATA SEALED 
+ [DATA SEALED] 


Addendum 4.1: 

Following the events of Exploration Ill, the entities inside 
SCP-3333 (hereafter designated SCP-3333-1) killed or 
impersonated all members present at Temporary 
Observation Post 3333. No distress signal was sent, and 
Exploration III was not forwarded before its conclusion. 
SCP-3333-1 entities maintained the facade of 
observation and exploration of SCP-3333, and 
continually requested manpower and equipment for a 
period of over one month. The ruse was only discovered 
when a supply assistant managed to send an emergency 
message before being killed or impersonated. 
Recontainment teams arriving at SCP-3333 found it 
completely abandoned. Over 50 personnel were lost.