SCP-1429 organoid organisms object class euclid
Item #: SCP-1429
Object Class: Euclid
Special Containment Procedures: All instances of SCP-1429 are stored at Bio-Site 66 in Facility
A-1429.
Free instances are to be kept in individual labeled vials in Bio-Containment Locker 1429.
SCP-1429 is considered to be a Class 3 infectious disease.
In the case of a broken container, all present personnel are to restrict themselves to the
area and call for the nearest recontainment team.
Personnel assigned to SCP-1429 are to be made aware that there is no way to detect SCP-1429
before manifestation, and they will be quarantined until an escaped instance is recovered.
No instance of SCP-1429 is to be extracted except for approved testing.
Test subjects for SCP-1429 are to be kept in quarantine in specialized human containment
suites for the duration of their infection.
Upon the manifestation of SCP-1429-B, human test subjects are to be terminated with minimal
physical trauma and autopsied for study.
When study of a given SCP-1429-B appears unlikely to yield further useful information, instance
is to be destroyed and SCP-1429 to be recovered.
Testing is not to be undertaken without a secure enclosure prepared for any eventual
instance of SCP-1429-B. Enclosures must possess multiple angles of surveillance and a fresh
water source.
See Document 1429-3-A for full requirements.
Description: SCP-1429 is a large luminescent amoeboid organism (~5mm in diameter) of fluorescent
blue colouration and unknown origin.
Currently, nine instances of SCP-1429 are in the Foundation’s possession, and one
has been destroyed through testing.
After an incubation period, SCP-1429 causes acute and variable mutation in human tissue.
SCP-1429 does not share physical characteristics with any known terrestrial microorganisms,
and do not appear to have a detectable DNA structure.
SCP-1429 does not appear to breed or multiply.
Upon infection, an instance of SCP-1429 will enter a human body painlessly through the
skin and settle within a large internal organ, rooting itself and becoming effectively undetectable
by conventional means.
The time between infection and activation varies greatly, with test subjects displaying
incubation times between thirty-eight minutes, and eight months two weeks.
After this period of time, the instance of SCP-1429 becomes active and causes a series
of radical mutations to the infected organ through an unknown process.
The organism produces a luminescent web of tissue similar to nervous tissue around itself
approximately 1 centimetre in diameter, somewhere within the mutated organ.
Organs undergo genetic and morphological changes and become ambulatory, growing limbs and simple
bodily systems of their own, effectively becoming independent organisms.
These organisms are classified as SCP-1429-B.
SCP-1429 will remain lodged within SCP-1429-B until the latter’s death, after which they
will remain for a short period of time before escaping.
Instances are capable of repeatedly infecting new hosts if given the opportunity.
No two infections have had exactly the same result.
Discovery: All instances of SCP-1429 were discovered after a series of outbreaks in
the central United States over the course of two months.
In total, ten civilians had become infected with ten individual instances of SCP-1429,
and subsequently perished.
As per protocol, a standard media purge was undertaken to contain public knowledge of
the events.
Additionally, the remains of civilian victims were retrieved and replaced with false bodies.
Live and deceased wild instances of SCP-1429-B were extracted and put in containment for
study.
During dissection, an instance of SCP-1429 was recovered from each recovered instance
of SCP-1429-B.
Research into the victims’ personal histories revealed a shared skydiving trip approximately
22 days before the first death.
Proposals concerning the examination of the Earth’s upper atmosphere are pending.
Select testing summaries
Testing Summary: In 85% of test cases, the instance of SCP-1429-B succeeded in exiting
the host’s body, often by breaking through the skin.
In 12% of test cases, SCP-1429-B remained trapped within the body and caused fatal internal
damage to the host.
The remaining 3% of tests yielded unique responses in subjects due to the placement of SCP-1429
and the nature of the subsequent mutation.
A selection of testing summaries has been compiled below.
This list contains instances of SCP-1429-B encountered through standard testing and not
instances recovered from the field.
Test Number Incubation Affected Organ Result 1429-B
001 5d4h3m Liver Host collapsed in pain as organ began to ambulate violently.
Organ tore skin and exited the torso before fully converting, causing fatal internal and
external trauma.
1429-B-001 manifested ten boneless legs of equal length and a simple gut, with a beaked
mouth replacing the hepatic vein.
Instance is capable of herbivorous aquatic life in a freshwater environment.
002 19d19h42m Sm.
Intestine Host collapsed with sudden, extreme nausea and vomited entire contents of bowel.
Went into shock as intestine began to ambulate.
Autopsy revealed significant internal bruising where organ detached itself from blood vessels
and digestive tract.
1429-B-002 escaped through the host’s mouth after its death by cardiac arrest.
Upon expulsion, instance had grown several dozen pairs of muscular lobed fins along its
sides, as well as a toothed circular mouth on the front end.
Later developed simple eyes and antennae along its back.
Instance proved highly carnivorous and amphibious.
004 8d1h7m R. Lung Host began internal hemorrhage, and suffocated as its left lung filled with
blood.
Autopsy released trapped instance of SCP-1429-B 1429-B-004 escaped the thoracic cavity during
autopsy.
Instance had developed a simple muscular web over its surface and a pair of delicate webbed
wings, and was capable of limited jumping and gliding action.
Accidentally destroyed by surprised coroner’s aide as it leapt from the thoracic cavity.
005 28d2h58m Heart and circulatory system Host collapsed from sudden cessation of blood
pressure to the brain.
Instance detached itself from the host and escaped through the navel, causing extreme
damage to thoracic cavity.
1429-B-005 consisted of heart and a majority of the circulatory system.
Instance possessed muscular webbing with a high level of articulation in larger veins
and arteries.
Finer veins and arteries apparently served as sensory organs.
Instance was predatory, having developed a small beak within the inferior vena cava and
a simple gut.
Hunted by ambushing prey, anchoring itself and ripping off pieces of flesh before fleeing.1
007 22h37m Tongue Host began producing inarticulate vocalizations, and attempted to bite tongue
off as 1429-B began to ambulate.
Host was sedated to foster the remainder of conversion, died of hemorrhage caused by SCP-1429-B-007
detaching itself.
Damage inflicted by host prevented the anterior half of 1429-B-007 from completing conversion.
Instance possessed four pairs of boneless, muscular limbs and no other mutations.
008 82d7h Stomach Host complained of unusually intense stomachache before vomiting blood,
expiring from blood loss soon after.
1429-B-008 escaped through the host's mouth.
Instance developed several segmented muscular arms and a complex mandible complete with
teeth.
Instance is carnivorous and retained for study.
See attached photo.
011 15d6h11m L. Eye Host complained of sudden blindness and pain around her eye.
Within four minutes ocular muscles had dislodged from the face and the instance of 1429-B escaped
the skull.
Event proved nonfatal to host.
1429-B-011 possessed three two-jointed limbs which had erupted from its posterior.
Instance dried out in 48 hours and perished with assistance.
015 13m6d11m Nervous system Host complained of hallucinations (both auditory and visual)
and phantom pain in nonexistent extremities.
Was unable to clearly articulate the content of hallucinations.
[DATA REDACTED] Instance required outside assistance to escape the host.