Special Containment Procedures: All specimens of SCP-1641 are 
to be contained individually in vivariums inside the Ballistic Testing 
and Explosive Items Containment bunker of Site 438. Male larvae of 
SCP-1641 are to be fed 12 grams of powdered iron daily, and 
female larvae are to receive 12 grams of powdered aluminum daily. 
Due to cannibalistic tendencies, no two larvae of the same sex are 
to be allowed to interact. 


Each larval and adult specimen of SCP-1641 is to be given a 250 
milliliter dish of water, which is to be replaced daily and laced with 
trace amounts of iron or aluminum for adult specimens to consume 
(respective to gender). All SCP-1641 habitats are to be maintained 
at a minimum 70% relative humidity. 


When adult instances of SCP-1641 are ready to breed, each 
individual breeding pair is to be placed inside a separate blast 
chamber and provided with 500 g of iron, steel, or aluminum, upon 
which they will complete their breeding cycle. Upon hatching, all 
larvae of SCP-1641 are to be contained in new vivaria under the 
conditions outlined above. The project director and the Foundation- 
appointed lepidopterist assigned to SCP-1641 will determine the 
appropriate number of SCP-1641 needed to maintain a viable 
breeding population, and all specimens deemed to be in excess are 
to be melted down and used as food stock for those in containment. 


Description: SCP-1641 is a species of butterfly resembling those of 
the genus Mechanitis. SCP-1641 are unusual in their almost entirely 
metallic composition: male specimens' bodies are composed of iron 
and iron oxide, while females are composed of aluminum. Larvae 
are capable of growing to a size of 7.5 centimeters and a mass of 4 
grams, and adult specimens of SCP-1641 have an average 


wingspan of 10 centimeters and mass of 2 grams. 


The average lifespan of an SCP-1641 instance is approximately two 
weeks, and specimens expire upon reproduction. During the mating 
period of their life cycle, a male and female specimen will locate and 
land on a suitable mass of iron or aluminum. Mating specimens will 
then embrace and, through an unknown process, initiate a thermite 
reaction that subsequently consumes their bodies. Larvae will 
emerge from the slag within an hour of the breeding process, and 
begin consuming the nesting site and any other available metal 
sources. One pair of adults is capable of producing an average of 
fifty larvae per breeding cycle. 


As the thermite reaction requires iron oxide, male specimens of 
SCP-1641 have several morphological adaptations to facilitate 
oxidation, such as tracheae to expose a large surface area of metal 
to atmospheric oxygen and moisture. The accumulation of rust is 
eventually deleterious to the male's continued animation, which 
leads highly-oxidized males to become increasingly frantic in search 
of a mate, until either successfully reproducing (and self-immolating) 
or the complete failure of the specimen's structural integrity. 


Recovery Log: SCP-1641 first came to Foundation attention 
through simultaneous reports of an unusually large swarm of 
butterflies and a highly destructive wildfire during the local rainy 
season, as well as mass equipment failure due to insect infestation 
at a foundry site in , Costa Rica. A Mobile Observation Team 
was dispatched to examine the site for signs of anomalous activity. 


Upon arrival, the observation team discovered several thousand 
SCP-1641 larvae consuming all available sources of iron and 
aluminum in the area, including parts of the buildings, forging 
equipment, and nearby vehicles. A containment team was 
dispatched, undercover as entomologists studying the new species, 
and all reports of the incident were suppressed. 


Approximately five days after initial containment efforts began, a 
logging company on the other side of began to file similar 
complaints of equipment failure, and another wildfire was reported in 
the area. A local fire investigation team traced the source of the fire 
to a mechanical harvester on site, where more larvae of SCP-1641 


were found and successfully contained. The foreman of the logging 
company reported to the observation team that he had received a 
threatening phone call on the company phone line approximately 
one hour before the incident. Within 48 hours, the phone call was 
traced to a hotel in the town, where several books on metallurgy and 
butterfly morphology were found, details of which can be found in 
Document 1641-14B-31. The resident of the room, an American 
national by the name of Richard , was arrested and 
interviewed by Foundation staff. See Addendum 1641-1 fora 
transcription of the interview. All civilian witnesses, including the 
police, fire, and insurance investigators have been administered 
amnestics. 


Addendum 1641-1: 


Interviewed: Richard 


Interviewer: Mobile Containment Unit Commander 
Alejandro Ortiz 


Foreword: The following is an interview conducted by 
Commander A. Ortiz in order to discern the nature, 
origin, and motive behind the creation, of SCP-1641. 


<Begin Log> 


Ortiz: Hello, Richard. My name is Commander Ortiz... 
So. You understand why we're here, right? 


Richard: Now, | could be wrong, but I’m gonna take a 
shot in the dark and say it has something to do with 
those fires up at the foundry and logging site. 


Ortiz: Yes. | was wondering if you knew how it had 
happened. I’m required to request that you be honest 
with me, and inform you that this process is as painless 
and straightforward as your cooperation allows for it to 
be. 


Richard: Well, | ain't gonna give you any runaround, 
Cap. | started the fires... Well, my friends did. 


Ortiz: You mean these insects? 


(At this time, Commander Ortiz presents photographs of 
SCP-1641 in various stages of physical development 
upon the interview table.) 


Richard: Yeah, man. Those guys. Mechanitis 
pyrotechnica. My babies. 


Ortiz: Mechanitis pyrotechnica? Is that what you call 
them? 


Richard: Well, yeah. They're an endangered species 
related to the tigerwings, and they blow shit up. 


Ortiz: Quite. So, would you care to tell how you made 
them? 


Richard: Nah, man. Father gave me the instructions 
personally, made me memorize them, and bound me to 
shut the hell up about them. 


Ortiz: Your father? Why would a man send his son on to 
do something like this? 


Richard: | meant in the religious sense. I’m on a mission 
from God, man. 


Ortiz: So, this was a religious statement? This doesn’t 
seem like something that the Lord would want. 


Richard: Good thing it’s not your god I’m worried about 
pleasing, then, isn’t it? 


Ortiz: (After a brief pause) Now, why did you make them 
this way? | must admit that I’m a bit curious. 


Richard: Man, | just wanted to give these guys a 
chance... The foundry was just a test run to see if it 
would work. |’m kind of pissed at your buddies for taking 
my first group away, by the way. Had to start the second 
batch from scratch. 


Ortiz: You’re aware that you started two forest fires with 
the creation and first breeding cycle of these creatures, 
yes? And that six firefighters died trying to stop them 
from consuming the rest of the forest? 


Richard: Yeah. 
Ortiz: And you think your god would be okay with that? 


Richard: You mean the firefighters? He wouldn't give a 
damn. Now, the trees, | dunno, but I’d like to think so, 
yeah. 


Ortiz: How do you figure? | thought you were attempting 
to stop the damage already happening? 


Richard: Man, | figured He would understand. After all, 
what’s a few trees for the forest? 


<End Log> 


Closing Statement: Following this interview, Richard 
was subjected to a series of tests and 
examinations to determine if there were any after-effects 
or residual anomalous phenomena concerning his 
person. Once this was completed to the satisfaction of 
the administrative staff of Site-438, Richard 's 
memories of the events and creation of SCP-1641 were 
suppressed and replaced with falsified memories of 
committing arson, with evidence planted in his hotel 
room corroborating this fact. He was then turned over to 


the police force of , Costa Rica, to solidify the cover 
story, and sentenced to life imprisonment. Foundation 
observation of Richard will continue indefinitely. 


« SCP-1640 | SCP-1641 | SCP-1642 » 


SCP-1642: Dr. Wondertainment's Insta-teen 
Tablets ™ 


Item #: SCP-1642 
Object Class: Safe 


Special Containment Procedures: All discovered instances are to 
be stored in Containment Locker C243 at Site-24. Access to 
SCP-1642 will only be granted to personnel of clearance level 3 or 
higher. Written permission from personnel with a clearance level of 3 
or higher is not adequate for access. 


Description: SCP-1642 is a collection of 500 mg chewable tablets. 
These tablets vary in colour! and flavor;2 however, their effect 
remains the same. SCP-1642 come in packets of 6, and are 
contained in a sleeve. The packaging reads "Dr. 
Wondertainment's Insta-teen Tablets™". The backing reads as 
following: 


Hey kids! Have you ever wanted to know what it feels 
like to be grown up!? And adults, have you ever wanted 
to feel young again!? Well now you can get both with Dr. 
Wondertainment's Insta-teen Tablets™! Just pop one of 
these chewable tablets into your mouth and begin 
munching away! Within 20 minutes you'll find you're 
living the life of a teen once again!! 


Warning: Only take one tablet at a time. Do not take if 
pregnant. Dr. Wondertainment is not responsible for any 
existential crisis or loss of life that may occur. 


When ingested by either a person of age 20 or older, or a child 14 or 
younger, the subject will undergo a quick transformation into a stage 
of late pubescence, approximately 18 or 19 years of age. How this 
process occurs is not understood, however the change is extensive; 
fat is moved to the lips and buttocks, bones become less brittle, 


muscles become more toned, and hair is regrown. Analysis of blood 
samples has shown that hormone levels are typical of a late 
pubescent. These changes will revert within 12 hours. 


Taking more than one tablet results in additional changes to areas of 
the brain connected with aging and maturity, as well as the 
hypothalamus and pituitary glands. Typically these will cause 
anxiety attacks, an uncontrollable libido, mental disorders involving 
self-image, immature or reckless behaviour, and the appearance of 
other physical diseases associated with puberty such as Acne 
vulgaris. The severity of these symptoms is directly correlated to the 
amount of the overdose, with subjects ingesting 4 or more tablets 
becoming comatose due to extensive brain damage. These changes 
are irreversible once the subject reverts. Testing has not been 
conducted over a long enough time period to determine if children 
who have had these symptoms due to overdose will lose them at the 
end of natural puberty. 


Pregnant women ingesting SCP-1642 will experience its effects. 
However, the foetus? will also be affected by SCP-1642. This will 
inevitably cause the death of the mother as the foetus rapidly 
expands. Once the foetus has become a late-pubescent teen, it will 
remain alive until it ceases to be affected by SCP-1642, at which 
point it will die. Note, however, that while in its late teen state, the 
foetus is not mentally developed, and will behave as such. 


Crosstesting between several different temporal based anomalies is 
currently pending the approval of the Site-24 director. These include, 
but are not limited to, SCP-559, SCP-983, and SCP-1080. 


Footnotes 

1. Recorded colours are violet, cyan, pink, lime green and yellow 
2. Grape, blue raspberry, watermelon, green apple, and banana 
3. Most commonly Anorexia nervosa 

4. SCP-1642 will have no effect on an embryo, as a placenta is 
required for the correct transfer of chemical agents. 


« SCP-1641 | SCP-1642 | SCP-1643 » 


SCP-1643: The City and the Tower 


Item #: SCP-1643 
Object Class: Euclid 


Special Containment Procedures: The land surrounding 
SCP-1643 is enclosed in a chain link fence. This perimeter is to be 
continuously monitored by Foundation personnel and automated 
systems. Any trespassers should be detained and interviewed. 


Local authorities are to be informed that the site is a government- 
owned atmospheric research facility. 


Personnel assigned to the project should not be strongly religious. In 
particular, personnel should not be practicing members of any 
Abrahamic faith. 


No one is permitted to enter an 850-meter radius around SCP-1643 
without prior approval from the site director. Robotic exploration is 
permitted. 


Description: SCP-1643 is a 230-m tall tower located in the center of 
the ruins of a walled town in northern Iraq. The lower 70 meters of 
the tower are made of clay brick. The upper 160 meters are 
constructed of modern steel alloys in the form of an open framework 
surrounding an elevator shaft with a single chamber at the top. Upon 
containment, ritual equipment consistent with that believed to be 
used to stabilize temporary inter-dimensional spatial anomalies was 
found within this chamber. The clay levels of SCP-16483 are 
structurally reinforced using modern materials. Metallurgical analysis 
of the modern components of SCP-16483 indicates that they were 
constructed within the last decade. 


All individuals who come within 800 meters of SCP-1643 become 
unable to speak, read, write, or comprehend the same language as 
anyone currently within this area. If this would mean that an 


individual would be unable to speak in any language, due to all the 
languages that they know already being spoken by someone within 
the effect of SCP-1643, they instead find themselves fluent in 
another language. 


Upon attempting to leave this radius individuals are instantaneously 
relocated to a part of the world in which whatever language they are 
able to communicate in within SCP-1643’s radius is the predominant 
language. Individuals retain the ability to communicate only in the 
language or languages they could speak within the radius of 
SCP-1643. 


In addition to a significant quantity of conventional construction 
equipment, several pieces of notable but non-anomalous technology 
were found in the area surrounding SCP-1643. 


Within the base of the tower is a complex system of communication 
equipment and computers. This system appears to have been 
designed specifically to facilitate communication within the area 
affected by SCP-1643. Users speak into mobile handsets which 
relay their words to a central installation. The central installation 
translates from whatever language they are currently speaking to 
those spoken by other individuals within SCP-1643. The device 
appears to have been trained by having individuals who enter the 
tower remember an extensive list of ordered terms and having them 
speak it into the central machine to calibrate it. This would 
theoretically allow for an individual to achieve at least rudimentary 
communication with others connected to the system even if they are 
speaking a dead or otherwise unknown language. 


The communication system also has the capability to broadcast 
translated instructions, using shortwave radio, to receivers beyond 
the region SCP-1643 affects. 


Several trucks with basic self-driving capabilities added to them 
appear to have been used to transport material in and out of 
SCP-1643’s effect without triggering the relocating aspect of 
SCP-1643. 


A draft of a letter was found in the glove compartment of one of the 
trucks. 


For the attention of Reverend Dijkstra: