When a subject walks through the door to the other side, it will at 
first appear that they have walked a full circle and returned to the 
original room. However, it will become apparent that this is not the 
case. One of the most obvious indications of this is in writing, which 
will be mirrored (writing brought back to this side of the doors have 
retained this property) but otherwise no different to the writing 
present on this side of the door, in terms of location, font, size, etc. 
Everything else will also be mirrored. Right handed people will 
become left handed, profiles on coins will face the opposite way, 
cars will drive on the opposite side of the road as would be expected 


of the country, etc. It is believed that all people (hereafter referred to 
as instances of SCP-1691-1), locations and history are identical to 
ours, differing only in appearance. It has been noted, contrary to 
hypotheses, that the spoken word is identical to our own and suffers 
no distortion. 


The world and people inhabiting it act in total accord to their 
doppelganger on the other side of the door, as far as it can be seen. 
Unfortunately, any testing using test subjects also results ina 
mirrored doppelganger entering into our world. As such beings are 
technically SCP-1691-1 instances, there was initially complete 
resistance to letting the SCP-1691-1 outside of the test chamber. 
Upon realising that returning the doppelganger also returned the test 
subject with very little data acquired, this was revised. One 
supervised trip outside of the facility was allowed before 
Incident-1691-1. Due to the events that occurred as a result of this, 
testing has been discontinued and full security procedures have 
been put in place. 


Incident-1691-1 


SCP involved: SCP-1691, SCP-1691-1 
Personnel involved: D-9237, Dr. 
Date: / / 

Location: ; 


Description: On //  , asupervised trip of D-9237's SCP-1691-1 
copy was authorised, under the conditions that settlements such as 
towns or cities were not approached. The SCP-1691-1 was to be 
provided with any photos (unaltered) that it asked for, and any 
information not related to the SCP Foundation or other sensitive 
topics. The instance of SCP-1691-1 appeared as D-9237 entered 
SCP-1691. The doppelganger was initially X-rayed, and its internal 
anatomy was found to be reversed, as in individuals with situs 
inversus. 


After being searched, the SCP-1691-1 was blindfolded, gagged, 
restrained and earplugs applied to before being taken off-site, and 
remained restrained for the entirety of the time it was outside of the 
containment cell. (Sedation was suggested, but due to a lack of 
understanding of chemistry inside SCP-1691 - i.e, whether 


molecules were their chiral opposites or not — researchers decided 
that they did not know what effect normal tranquilisers would have 
on the instance of SCP-1691-1. As such attempts were made 
instead to suppress sensory and motor abilities as much as was 
otherwise possible.) Requests for information or images were noted 
and the results of those that were granted were intended to be given 
to the SCP-1691-1 shortly before being returned to SCP-1691. After 
being removed from the site, the copy of D-9237 was driven 
kilometres _. Upon awakening, it was allowed to examine various 
examples of flora and fauna native to the area whilst handcuffed at 
the wrists and ankles, and to request photographs of these 
specimens. Several armed guards surrounded the SCP-1691-1 
throughout. Return to the site was uneventful. 


However, when being transported back to SCP-1691's containment 
cell, a minor security breach of SCP- occurred. While this was 
resolved with minimal casualties, SCP-1691-1 was killed. Assuming 
that the same had also befallen D-9237, the information the instance 
of SCP-1691-1 had requested was assembled and placed with the 
corpse of SCP-1691-1 in SCP-1691, which was then turned. 


Contrary to expectations, D-9237 returned alive and with mirrored 
copies of the information provided by the Foundation. Aware that 
this may be viewed as an act of hostility against the version of the 
Foundation within SCP-1691, a negotiator, Dr. , was sent 
through with minimum delay. 


No instance of SCP-1691-1 was seen coming through SCP-1691 at 
this time. 


Viewing the information retrieved by D-9237 further confirmed the 
perfectly mirrored nature of the world beyond SCP-1691, but this 
raised further questions about a lack of Dr. 's doppelganger. 


Dr. returned unharmed ten minutes later. 


It is unknown to what extent the contents of SCP-1691 have fallen 
out of synch with our own. While the observed differences seem 
initially minor, there is nothing to prevent changes of greater scope. 
SCP-1691 has become unpredictable. While it could previously be 
controlled through the actions of those who interacted with the door, 


this safeguard has been removed. In an effort to prevent provocation 
of instances of SCP-1691-1 and to avoid a variety of unwanted 
interactions between SCP-1691 and our world, testing has been 
discontinued. 


Research has begun into the decommissioning of SCP-1691. 


« SCP-1690 | SCP-1691 | SCP-1692 » 


SCP-1692: Came Back Haunted 


Item #: SCP-1692 
Object Class: Euclid 


Special Containment Procedures: SCP-1692 is contained ona 
2.77 square kilometer area of swampland located in central 
Louisiana, with chain-link and barbed wire fences along the 
perimeter. Outposts are to be stationed at 500 meter intervals, with 
regular patrols by guards posing as park rangers. In the event of a 
security breach by civilians, all possible measures are to be taken to 
retrieve the individual without use of lethal force. 


Description: SCP-1692-1 refers to a corporeal entity of unknown 
composition located in St. Landry Parish, Louisiana. SCP-1692-1 
most frequently appears as a prepubescent girl covered in mud, but 
has been observed taking on the forms of certain mammals and/or 
missing persons last spotted within meters of the enclosed region. 


SCP-1692-2 refers to a sinkhole located at the direct center of the 
enclosed area that is filled in with mud and water. As of 2014, 31 
sets of human remains and 24 animal remains have been 
discovered in SCP-1692-2. Fourteen of the bodies have been 
positively identified as locals declared missing between the years 
191 and 195 . New bodies have emerged from the pit sporadically, 
despite constant video monitoring of the area showing nothing 
entering the pit. 


When a lone individual enters the affected area, SCP-1692-1 
manifests more frequently, appearing to lead or otherwise attempt to 
induce the individual into following them. The individual inevitably 
becomes lost and all traces of them (including footprints, dropped 
items, and articles of clothing) disappear. 


Between several hours and several weeks, an instance of 
SCP-1692-3 appears within the area and attempts to leave, if 


practicable. Recorded instances of SCP-1692-3 tend to bear a 
strong physical resemblance to the missing individuals, though 
typically deformed or otherwise mutilated, with signs such as: 


¢ Missing limbs (with no sign of amputation) 


Missing organs (including total evisceration) 


Hydrocephalus 


Dissociative amnesia, often combined with depersonalization 
(living subjects retain little or no memory of recent events, or 
else describe extended periods of their own history as 
"dreamlike" or "unreal") 


Of the recorded subjects, 84% have shown physiological 
inconsistencies, such as having the wrong blood type, differently 
aged organs, different hair or eye color, fluency in languages 
unknown to the subject, and impairments and/or improvements in 
certain mental faculties inconsistent with the subjects prior to 
exposure. An additional 54% bear signs of surgical incision or 
stitching indicative of vivisection. 


With two notable exceptions, all instances of SCP-1692-3 have died 
soon after recovery due to these alterations. 


History: SCP-1692 first came to the attention of the Foundation in 
1938 after several children went missing near Lake, only to be 
recovered days later, with two of them missing fingers and toes, one 
with extra fingers, and three others with differently colored eyes and 
hair. While scouring the region, local officers similarly disappeared, 
with one Caucasian officer being recovered in a delirious state, 
claiming to be an African-American male named 


Foundation personnel on site soon discovered what appeared to be 
a freshly deceased body of a young child missing its legs and much 
of its head above the jawline, with skin grown over the severed 
ends. The body matched the physical description and clothing of a 
Bobby Dunbar, who had gone missing in the area some 25 years 
earlier, and was allegedly found months later alive and well. The 
body was placed into cold storage, as decomposition began setting 


in once it was disturbed. 


Interviews with the now-adult Bobby Dunbar provided no pertinent 
information regarding the body, though had mentioned in an earlier 
interview a memory of "the other boy on the wagon" but could 
provide no further details. The Foundation began investigating the 
case, and found that the boy recovered by the Dunbar family had 
been in the custody of one William Cantwell Walters who claimed 
the boy to be Charles B. Anderson, the son of a woman who worked 
for him, who subsequently filed suit against the Dunbar family for 
custody of the boy. Due to matching physical evidence, and the boy 
himself identifying Mrs. Dunbar as his mother, the court ruled in 
favor of the Dunbar family. 


The man identified as Bobby Dunbar lived out his life and died in 
1966. DNA testing conducted in 2004 revealed that the man known 
as "Bobby Dunbar" was not in fact related to the Dunbar family. DNA 
from the body in Foundation custody was found to have been 
severely mutated via hydrolytic deamination. 


Incidents continued to emerge within the region, leading to a 
Foundation quarantine of the affected area in 1939, occasionally 
expanded upon further discoveries of SCP-1692-3 instances. A 
young woman was recovered by the Foundation missing her left eye 
and bearing stitches along her left jawline. From her testimony, 
details regarding SCP-1692-1 and -2 were discerned for the first 
time, and SCP-1692-2 was located. From SCP-1692-2, two bodies 
were recovered, one of which bore a strong resemblance to the 
young woman, who vehemently denied it was in any way related to 
her. The body was missing portions of the left side of its head, 
including its left eye socket. 


The woman remained on-site for a time before being administered 
amnestics and released under covert monitoring, where she lived 
out her natural life without any incident. DNA testing conducted 
years later found that her DNA did not match those of family 
members, and the recovered body could not be conclusively 
identified. 


Once video surveillance of SCP-1692 was technologically feasible, 
incidents of SCP-1692-1 sightings and recovery of bodies have 


dropped off dramatically. As a result, animal corpses have begun to 
emerge from SCP-1692-2, bearing similar signs of hydrolytic 
damage to their DNA. 


« SCP-1691 | SCP-1692 | SCP-1693 » 


SCP-1693: Infectious dementia 


Item #: SCP-1693 
Object Class: Safe 


Special Containment Procedures: 

A stable population of five SCP-1693 infected D-class personnel, 
collectively designated SCP-1693-1 is to be maintained at Sector-25 
in standard humanoid containment units that have been modified in 
accordance to the specifications listed in document SCP-1693- 
HCUS-A. 


No Foundation personnel and/or members of the public are to be 
exposed to vocalisations or recorded vocalisations of confirmed or 
suspected SCP-1693-1 instances, including non-audio methods 
such as physical transcripts or digital audio visualisation. All testing 
or observation of SCP-1693 and SCP-1693-1 instances beyond that 
which is required for maintaining containment is presently 
disallowed, and any attempt to do so is to be considered a 
containment breach. 


D-Class personnel are to be exposed to SCP-1693, instances of 
SCP-1693-1, or their vocalisations, only as required to replenish 
SCP-1693-1 instances. 


SCP-1693-HCUS-A defines, in brief, a humanoid containment unit 
that has been modified to include FAV Classification Level 15 
soundproofing. No audio or video monitoring equipment is to be 
maintained in or around the containment unit. Millimeter-wave 
remote biometric monitoring equipment is to be maintained to 
monitor the physical health of contained SCP-1693-1 instances. A 
soundproofed antechamber is to be established at the entry point to 
each containment unit. Delivery and collection of consumables and 
waste to and from each containment unit is to be achieved via 
automated systems. Any maintenance of the containment units that 
requires entry into the interior requires first the transfer or 


termination of the contained instance of SCP-1693-1. 


D-Class personnel assigned to become an instance of SCP-1693-1 
are to be admitted entry into the antechamber of the containment 
unit of an existing SCP-1693-1 instance and provided, via remote 
control, a copy of document SCP-1693-D-A1 in hard copy or speech 
synthesis, as required by the D-Class personnel's level of literacy. 
Further details of the specific process for replenishment of 
SCP-1693-1 instances is to be found in document SCP-1693- 
HCUS-A. 


Document SCP-1693-D-A1 must not be viewed by any persons 
other than D-Class personnel assigned to become an instance of 
SCP-1693-1. Exposure to document SCP-1693-D-A1 outside of 
these conditions is to be considered a containment breach. 


In the event of a containment breach, all instances of SCP-1693-1 
affected, and all potentially exposed Foundation personnel and/or 
members of the public are to be terminated. 


Description: SCP-1693 is an aurally infectious form of Alzheimer's 
disease. The physical nature of the infection is currently unknown. 
Other potential infection vectors, such as non-verbal communication, 
are currently unknown. The efficacy of amnestics as a method of 
inoculation or cure is unknown. Incubation period is unknown, but 
hypothesised to be in the order of 3-5 minutes following initial 
exposure. 


The content of document SCP-1693-D-A1 is unknown, and is to be 
considered a possible infection vector. 


Information regarding the initial containment of SCP-1693 and of the 
establishment of the current containment procedures is missing 
following the containment breach of SCP- in 19 , andthe 
subsequent corruption of database information and hardcopy 
destruction that followed. 


[+] SCP-1693-D-A1 - Sealed by order 9603-A 


My name is Jake Williamson. I'm 68 years old. 
| have one of those numbers they give you, but 


I've forgotten it a long time ago. I'm writing to 
tell you that you have won the lottery, my 
friend. Like me, you have found yourself in a 
bad place. You've done the crime and now 
you're doing your time. You've been sentenced 
to die, but you got brought here instead. 
Confusing, isn't it? 


Well, I've had a lot of time to think about what 
this place is. I've been here for a long time, 
after all. A lot of time on your own gives you a 
lot of time to think. And what I've come up with 
is this: this is a prison, but not for us. It's a 
prison for much worse things: diseases. It's a 
kind of hospital, and we are the patients. We're 
here for them to infect so they can poke and 
prod us and see what bits fall off us and when. 
Did you know the Nazis did that at the camps? 
Gives you an idea of what kind of people we're 
dealing with, doesn't it?