A stray book lies on the floor, shrouded in the darkness. Your foot 
hits it. You trip — not enough to fall, but enough to throw you off 
your balance. You reach out and grab a bookshelf. Your hand, 
searching for a place to grasp, hits another book and sends it falling 
to the floor where it hits the carpet with a thud that echoes all around 
the room. 


You freeze. The echo fades. The library returns to silence. If 
someone were here, they definitely would have noticed that. 
Hopefully, they would have come out to say hello. You decide that 
you are alone, and continue walking. 


You arrive at the librarians’ desk and, somewhat awkwardly, climb 


over the counter. Behind, you take a seat at one of the two 
computers and boot it up. The fans of the machine turn on, blowing 
their cacophony into the silent room. After twenty seconds — this is 
outdated technology, after all — you are presented with a login 
screen. You withdraw a notebook from your pocket and enter the 
details on the first page. The login is successful. 


The next page of the notebook is a list of instructions written weeks 
ago. Combinations of buttons to press, commands to enter. You 
open two different terminals, enter a series of commands, watch 
lines of text you don’t understand flicker past your eyes. Eventually, 
when prompted by your instructions, you take a USB drive from your 
pocket and gently push it into the slot in the machine. 


The screen goes black as the computer thinks about what it needs 
to do. A long, tense moment passes. 


The file for SCP-3984 lights up the room as the page loads, dark red 
header contrasting against the bright white background, burning 
your eyes that have grown used to the darkness. You wince, and 
blink, and wait for your eyes to adjust. 


You breathe a sigh of relief, relief that the instructions you were 
given worked, but it’s a feeling that you cut short. You’re here to 
solve a mystery that you've lived with your entire life, a mystery that 
no-one else seems to want to solve or even acknowledge, a mystery 
that’s been around for twenty-four years. And you hope — you have 
to hope — that this file will hold at least some answers. It’s the only 
place left to look. 


The file begins with a note from one of the researchers. Reading 
from the top seems like a good way to start. 


You don’t need to rush. You have all the time in the world. 
Notice to all personnel 


OK is a thing. It's happened. We all have to live with it 
now. 


Despite speculation — no matter how prevalent said 


speculation is — we do not know for sure whether or not 
we caused OK, whether any of our SCPs caused it, or 
whether any of them can fix it. We do not know whether 
it is related to the Foundation at all. 


What we do know is that it now defines our lives. 


The SCP Foundation does not destroy anomalies, it 
contains them. That is our purpose. OK is an anomaly 
and we will contain it. We will not end it, we will not "put 
things back" as certain individuals are asking. That is not 
our purpose, this is not our battle. However, we will 
contain it, or at least try to. 


So if any of you are expecting my research team to come 
up with some magical solution to end OK, stop expecting 
that. We will treat the symptoms, but not cure the 
disease. 


QOK is here and it’s not going away, so grow up and move 
on. You are professionals — act like it. It’s not like this is 
going to kill you. 


— Dr. Emily Young 


Dr. Emily Young. A name you know very well, a name you've been 
trying to avoid for the past twenty years, a name that you completely 
expected to see. 


And here, it's a name who's telling her researchers not to look into 
the origin of the crisis. Instead, she wants to focus on the 
symptoms? 


You met Young last year, and suffice it to say that she is of very little 
use for research purposes. You'll get no benefit from talking to her. 
This document really is the last place you can look. 


SCP-3984 
End of Death Hub » SCP-3984 


Item #: SCP-3984 


Object Class: Keter 


Special Containment Procedures: Containment of SCP-3984 
revolves around inducing death in affected animals. As this is not 
currently possible, SCP-3984 can be considered uncontained. 
Research efforts must be directed into the development of 
alternative methods of inducing death. 


Research into reversing the effects of OK, or its origin, is prohibited. 


Prohibited? That doesn’t make sense. Why would the Foundation 
want to actively restrict research? 


It must have been Young who enforced this rule. But why? 


Description: SCP-3984 refers to a phenomenon in which any living 
organisms in the kingdom Animalia under Cavalier-Smith 
taxonomy, including humans, are unable to die. 


Currently, all known lifeforms in the kingdom Animalia are under the 
effects of SCP-3984. This satisfies the criterion for an QK "End of 
Death" scenario. 


The source or origin of the prevalence of SCP-3984 as such is 
referred to as "OK". The exact nature of OK is currently under 
debate. This document pertains only to SCP-3984 and its effects, 
not its origin. 


QK occurred on 2020-09-12 at approximately 14:02 GMT, a time 
which has been derived from the last globally recorded human 
death. Since that time, SCP-3984 has been present in every living 
creature thus tested. As a result, mortality rates have dropped to 
zero. 


SCP-3984 appears to only extend to the ability to die. SCP-3984 
does not grant a healing effect, does not prevent aging, does not 
prevent conception or pregnancy, and does not prevent subjects 
from sustaining injury. 


In the long term, SCP-3984 presents a major threat to societal 
structure as the population is expected to expand exponentially. 
Current models estimate that overpopulation would begin to lead to 


excessive scarcity to the point of widespread starvation in the early 
2040s. Additionally, while population growth is a considerable 
concern for humans in the long term, a much larger short-term 
concern is presented by animals with r-selected evolutionary 
strategies. 


Worldwide efforts should be focused on generating sufficient 
resources for the planet to be able to cope with the increased 
population. Talks with governments around the world to determine 
strategies for managing population growth, for both humans and 
animals, is underway. Foundation efforts should be focused on the 
development of alternative and/or artificial solutions to replace 
death. 


The extent to which SCP-3984 constitutes ‘conventional’ 
immortality’ is the subject of ongoing research, which is led by Dr. 
Young as per request. Experimental logs and a theory on the 
mechanism of SCP-3984 is presented below. 


Experiment Log 01 


Date: 2020-09-14 
Experimenter: Dr. Emily Young 
Subject: D-1190 


Procedure: D-1190 was asphyxiated by manual 
strangulation from D-9981. 


Results: D-1190 struggled initially but stopped resisting 
after several minutes of strangulation. D-9981 was told to 
maintain grip for a further ten minutes. D-1190 recovered 
shortly afterwards with no lasting damage. 


Experiment Log 02 


Date: 2020-09-14 
Experimenter: Dr. Emily Young 
Subject: D-6812 


Procedure: D-6812 was asphyxiated by D-9981 tying a 
belt around his neck. 


Results: D-6812 initially resisted asphyxiation despite 
instructions otherwise, but stopped after several minutes 
of strangulation. D-9981 was told to keep the belt in 
position for a further ten minutes. D-6812 recovered with 
mild but permanent damage to several muscular 
ligaments in his neck. 


D-6812 was admitted to the Site-O6 medical ward but did 
not make any further recovery. 


Experiment Log 03 


Date: 2020-09-15 
Experimenter: Dr. Emily Young 
Subject: D-1190 


Procedure: D-1190 was placed in a vacuum-sealed 
chamber from which the air was ventilated. 


Results: D-1190 began to asphyxiate several minutes 
into the test, visibly struggling for air, and collapsed 
against the wall of the chamber after less than a minute, 
remaining conscious. Subject was left overnight, after 
which air was released back into the chamber. D-1190 
was admitted to the Site-06 medical ward with acute 
cerebral hypoxia and burst blood vessels in the eyes. 
Subject physically recovered within three days but 
remained in a vegetative state for several weeks. Upon 
awakening, D-1190 displayed symptoms of permanently- 
impaired motor and speech skills as well as widespread 
paralysis. 


2020-11-02: One month after waking up, D-1190 has not 
shown any signs of further recovery. It appears that the 
anomalous nature of the healing effect extends only to 
fatal injuries or ailments. D-1190 remains effectively 
useless as D-Class. Under usual circumstances, I'd 
recommend termination. - Dr. Emily Young 


Experiment Log 04 


approach SCP-516 and detonate explosive. D-101 fitted with 'dead 
man's switch’ to induce explosion if D-101 killed. 

Result: As Dr. detailed instructions to D-101, SCP-516 [DATA 
EXPUNGED] 


Testing Log 516-01k 

Test Circumstances: Standard shell replaced by SCP-157-ARC 
Target: One (1) D-class personnel (D-185), given shoulder-fired 
anti-tank weapon, instructed to approach SCP-516 and fire. 
Result: SCP-157-ARC changed into [DATA EXPUNGED]. Upon 
being loaded into SCP-516-1, [DATA EXPUNGED], leading to the 
death of D-185 as well as __ further casualties. Dr. , who 
proposed test 516-01k, was reprimanded and transferred. 


Date: 2020-09-17 
Experimenter: Dr. Emily Young 
Subject: D-8833 


Procedure: D-8833 had cuts made on her wrists and 
ankles and over the course of 6 hours was drained of an 
estimated 80% of her blood. Removed blood was 
retained and re-introduced to the body the following day 
via intravenous drip. 


Results: In much the same manner as the previous 
experiment, D-8833 was successfully 'resurrected' but 
has suffered injuries consistent with prolonged loss of 
oxygen to the brain. In this instance, symptoms included 
loss of sensation in the left half of the body and loss of 
understanding of any subject more complex than naming 
animals. Note that D-8833 remained conscious despite 
not having a significant volume of blood. 


The logs continue in much the same fashion, with some unfortunate 
D-Class being exposed to something that would normally kill them. 
Poison, starvation, explosion, whatever. You scroll down, looking for 
One in particular. The old scrollwheel clicks loudly, twenty times with 
each movement of your finger, a series of loud clicks that echo 
through the silence of the library. You stop at Experiment 10. 


Experiment Log 10 


Date: 2020-10-11 
Experimenter: Dr. Emily Young 
Subject: D-11424 


Procedure: D-11424 was decapitated with a steel- 
bladed guillotine. 


Results: Head was cleanly removed. D-11424 remained 
conscious during and after the operation. Efforts were 
made to breathe, which failed, and D-11424 began to 
show signs of suffocation and significant blood loss. 
Although D-11424 was admitted to the Site-06 medical 
ward, the injury was deemed "irreparable". Both head 


and body were placed into cold storage. 


You smile, lifting your hand to touch the raised scar that forms a ring 
around your neck and the tiny bumps from age-old stitches. 
Irreparable. 


You keep scrolling. 
Experiment Log 20 


Date: 2025-11-05 
Experimenter: Dr. Emily Young 
Subject: D-10273 


Procedure: One round from a standard-issue security 
handgun was fired into the forehead of D-10273 by Dr. 
Young. 


Results: Subject sustained major head injury was 
admitted to Site-06 medical ward with severe brain 
damage and blood loss. 


2025-12-28: After almost two months under medical 
care, D-10273 has made a full recovery, albeit with major 
memory loss of both recent and earlier history. Subject 
remembers basic skills such as how to eat and speak but 
does not recall any personal details. 


Experiment Log 21 


Date: 2025-12-31 

Experimenter: Dr. Emily Young (stand-in: Dr. Joyce 
Michaels) 

Subject: Dr. Emily Young 


Procedure: Dr. Young self-administered a single bullet 
to the head from a security handgun in much the same 
manner as the previous test. 


Results: Subject sustained major head injury and was 
admitted to Site-06 medical ward. Bullet had pierced the 
temporal lobe, frontal lobe and brainstem, the latter of 


which appears to have disconnected Dr. Young's brain 
from her body. She is unable to communicate or perform 
any motor functions. 


Note: As Dr. Young is incapable of performing further 
research, she has been removed from the SCP-3984 
research team. She will undergo a psychological review 
pending on her recovery. In the meantime, | will be 
assuming control of research. - Dr. Joyce Michaels 


Note: Dr. Young has neglected to maintain a log of specific research 
intentions for each experiment. Despite this, we have been able to 
narrow down the source of the immortality to the brain. Subsequent 
experiments should focus on this — we can consider the rest of the 
body to be mortal. - Dr. Michaels 


Michaels isn't wrong. You’ve seen someone in a car crash, their 
body mangled beyond recognition, limbs in places they shouldn’t be 
and blood everywhere that they should, but that should-be corpse 
still found the energy to call for help, to scream in pain. You don’t 
imagine they ever stopped. 


You remember meeting Young last year. She hasn't changed much 
since this experiment. You couldn't tell whether or not she was 
happy to see you. 


Experiment Log 22 


Date: 2026-02-02 

Experimenter: Dr. Joyce Michaels 

Subject: D-373A, a male Macaca mulatta or Rhesus 
macaque 


Purpose: To confirm or deny the above assumption. 


Procedure: D-373A was given a standard lethal injection 
dose4. 


Results: Primary injection was unable to cause D-373A 
to become unconscious; however it vocalisations 
became slower and panic-like symptoms were noted. 


Secondary injection saw widespread muscular relaxation 
and induced breathing difficulty. Tertiary injection quickly 
induced cardiac arrest, through which D-373A remained 
conscious and visibly panicked throughout despite 
severe muscular relaxation. 


After 12 hours, when the administered drugs were 
deemed dispersed enough to longer pose a significant 
effect, D-373A was admitted to the Site-06 medical ward 
with acute cerebral hypoxia from the lack of blood flow. 
Note that D-373A remained conscious throughout the 
experiment. 


2026-02-25: With medical attention from Site-06, D-373A 
has made a full recovery with no permanent side effects. 


Note: It is interesting to observe that sedation was 
unable to induce unconsciousness in the subject. It might 
be not that the brain is immortal, but that it is impossible 
to cause one to become unconscious. - Dr. Joyce 
Michaels 


Experiment Log 23 


Date: 2026-02-07 

Experimenter: Dr. Joyce Michaels 

Subject: D-374A, a female Macaca mulatta or Rhesus 
macaque 


Purpose: To confirm or deny the above assumption: that 
it is not possible to cause the brain to become 
unconscious. 


Procedure: Over the course of 5 days, D-374A was 
injected with: 


¢ A mild sedative 

« A strong sedative 

¢ A mild local anaesthetic 

¢ A mild general anaesthetic 
¢ Class C amnestics 


Results: D-374A responded positively to the mild 
sedative (dosage was insufficient to cause sleep), local 
and general anaesthetic and amnestics. D-374A had no 
response to the strong sedative — in fact no effect of the 
sedative was observed, despite the weak sedative 
showing a positive drowsiness response. 


Note: Sedation, at least to the point of unconsciousness, 
is not an option for future experiments. This supports the 
above assumption. - Dr. Joyce Michaels 


Experiment Log 24 


Date: 2026-02-19 

Experimenter: Dr. Joyce Michaels 

Subject: D-390A, a female Macaca mulatta or Rhesus 
macaque