Addendum 3207-1 (Discovery and Initial Disinformation 
Campaign): SCP-3207 was first located after a collection of da 
Vinci’s unreleased writings concerning speculative anomalous 
designs, along with several confidential letters (See Addendum 
3207-2), came into Foundation custody along with several other 
items after a successful raid against a Marshall, Carter and Dark 
auction house. Foundation historians analyzed the writings and 
followed directions contained within to locate an underground 
workshop on the outskirts of Milan. 


Although the door to the workshop’s unique locking mechanism had 
been tampered with, making entry extremely difficult, a Foundation 
search team were able to make their way in with digging equipment. 
Investigation of the workshop revealed an inactive SCP-3207, which 
was then also brought into Foundation custody. 


As a preventative measure against possible information regarding 
SCP-3207 being present in as-of-yet undiscovered da Vinci writings, 
a disinformation campaign was decided upon. The initial 
disinformation campaign consisted of inserting altered designs for 
SCP-3207 into da Vinci’s publicly available writings, presenting it as 
a much more simple and less advanced machine more consistent 
with its time of construction. However, errors by staff assigned to 
this task® resulted in the presented design having severe flaws 
which made it unworkable - flaws which would have been easily 
recognized by an engineer of da Vinci’s skill level. Thus, additional 
disinformation was necessary in order to suggest that these flaws 
were intentional on da Vinci's part as an effort to protect his work. 


Addendum 3207-2 (Recovered Documentation) 


The following is a letter to da Vinci from his collaborator 
Saul, concerning da Vinci withholding and refusing to 
deploy SCP-3207 publically. The text has been updated 
somewhat for ease of reading, but direct scans of the 
original letter are available in Site-10’s historical 
archives. 


From the esteemed engineer and artist, Marco 
Saul 


To his disloyal former collaborator, Leonardo 
da Vinci 


| must confess my continued disappointment 
that you refuse to respond to my letters. When 
we as two men of knowledge embarked on this 
voyage, did not we agree to stay in touch, and 
did not we agree to pool our wisdom together? 
Yet, you are silent. Our work, which | have 
informed you | am aware you have concluded 
your development of, lies unused and useless 
within our workshop, which | am sure you 
recall you have sealed from my use. 


Please recall that - as a close and valued 
friend of His Excellency Duke Sforza - it is 
unwise to antagonize me to the degree that 
clearly you are intent upon. While your 
standing with His Excellency is currently 
without reproach, | must feel the need to 
remind you that what is the case today is 
certainly not assured to be tomorrow. Please 
keep this in mind as you continue not to 
acknowledge my communications. 


| do admit some measure of amusement - 
having read the pleading letter you originally 
sent to His Excellency Duke Sforza of Milan, 
with whom | dine weekly® - at your declaration 
that you will ‘make an infinite number of items 
for attack and defense’. Clearly, this is not the 


SCP-408: Illusory Butterflies 


Item #: SCP-408 
Object Class: Safe 


Special Containment Procedures: The screen mesh aviary must 
be kept properly maintained by Level 2 personnel with backgrounds 
in biology or lepidoptery. Proper humidity must be maintained and 
recorded once per day, and backed up to Site 17. 200 feeders filled 
with an aqueous sugar solution are to be maintained and refilled 
once per week. 


Description: SCP-408 is a large mass of Lepidoptera, taking the 
appearance of zebra butterflies when not camouflaged. SCP-408 
acts as a single entity at all times, speculated to be a form of hive 
mind communication amongst the mass. When inactive, SCP-408 
will take on the color, pattern, and even texture of its immediate 
surroundings, making them functionally invisible. When threatened, 
SCP-408 has been observed to take on the form and appearance of 
a number of threatening creatures as a defense method, including a 
pride of lions, a Tyrannosaurus Rex, and most notably SCP-682 
(See Incident Log 682-C). 


SCP-408 possesses the ability to communicate and reason, utilizing 
its ability to manipulate its color into words and sentences to reply to 
researchers. IQ tests administered to SCP-408 have evaluated its 
IQ to be 109, or slightly above average. However, when a part of the 
swarm is isolated, lower scores have been reported, resulting ina 
theory that SCP-408 shares its cognitive capacity amongst the 
entirety of the swarm. As of - - ,SCP-408 prefers to be identified 
by its SCP number. 


SCP-408 was discovered in , Brazil, after reports that locals and 
logging teams found their maps to be frequently inaccurate 
regarding the size of the rainforest. After reports of animal sightings 
not local to either the Brazilian Rainforest, and some not found on 


case, or else you would not have abandoned 
our grand work. In this case, were you perhaps 
attempting to deceive His Excellency in the 
hopes of profitable employment? You are a 
truly a lamentable man if that is true. 


Your motivation in this matter is just as 
comprehensible as your actions - which is to 
say, not at all. In what way is it preferable for a 
man to be slain with a sword than with our 
grand creation? Does the presence of a 
human carcass somehow make the method of 
killing more legitimate? When | saw the works 
you had painted in your workshop when we 
met last year, | felt surely that you at least 
would be most receptive to what | had to offer - 
but again, you clearly lack my perspective. 
What is war but another canvas to paint upon? 
| can assure you that a man’s final breaths are 
just as pure an expression as a babe’s first 
smile. 


| had hoped to share with you further miracles 
of my discovery’, but you have proven time 
and time again that you do not have the 
necessary constitution. | now sincerely hope 
that - by the time your residence in Milan has 
ended - we do not cross paths again, and | 
would highly recommend you share this 
desire. Although you may not have the 
stomach for true expression, | do, and this 
clumsy attempt of yours to sabotage me will by 
no means halt my work - | can assure you of 
that. 


Footnotes 

1. Although SCP-3207 has not yet demonstrated the capability to 
move when deactivated, these additional precautions were 
recommended by Containment Specialist Lawrence upon initial 
containment of SCP-3207 and have been approved by Site Director 


Willem. 

2. Anomalous Weapons Testing Range 

3. It is theorized that while some sort of environmental 
contamination is caused by SCP-3207's power unit, it does not 
come in a form that Foundation technology can currently detect. 

4. Analysis of the control mechanism's current state and its 
projected rate of aging suggests that it will continue to be operable 
for at least two hundred years further. 

5. These staff were later demoted or reassigned away from 
disinformation duties. 

6. Records from the time indicate that Saul is likely overstating his 
relationship with Duke Sforza at this point. 

7. Although Saul does not explicitly state where he obtained the 
materials for SCP-3207's construction in this letter, historical records 
from the year SCP-3207 was built mention a ‘falling star’ near the 
city of Milan. 


SCP-3208: YKHN 


Item #: SCP-3208 
Object Class: Keter 


Special Containment Procedures: Public knowledge of SCP-3208 
is to be controlled by Foundation personnel. Members of Mobile 
Task Force Mu-7 "The Whirlwinds" are to search all available media 
for signs of SCP-3208-infected individuals in order to enact isolation 
and quarantine. 


Individuals suffering from SCP-3208 infection are to be isolated from 
uninfected individuals and removed to the Foundation hazardous 
quarantine facility nearest to the location they are apprehended. 


Analysis of SCP-3208-related growths are to be undertaken under 
supervision from a hazardous materials expert. Interaction with 
3208-infected individuals after quarantine (even for the purposes of 
analysis and research) requires approval from the 3208 project head 
at Site-811. 


Dreams and hallucinations involving SCP-3208-1 are to be 
documented as long as the SCP-3208-infected individual is capable 
of communication with Foundation medical staff. 


Description: SCP-3208 is an infectious disease which initially 
presents as a minor headache caused by a hard, seed-shaped 
neoplasm that forms in the thalamus, followed by neurological 
degeneration. Symptoms which accompany early SCP-3208 
infection may include impaired cognitive function, seizures, muscle 
weakness, and upper-extremity dysmetria. SCP-3208 neoplasms 
exhibit a dendritic growth habit, expanding throughout the cerebrum 
over approximately three weeks, increasing the severity of the 
above symptoms until the onset of full body paralysis. Notably, none 
of these effects appear to be fatal to the subject. 


Following this, the infection will cease growth in the cranium and 
begin to spread through the nervous system to the remainder of the 
body, exiting through any orifice to which the growths are adjacent 
(with the eyes, nostrils, ears, and mouth producing external growths 
first). The material produced by this process is organic, gray in 
appearance, and a transmission vector for SCP-3208. This material 
will continue to increase in size outside of the body until it anchors 
the infected individual to a nearby surface. 


While neurological symptoms vary, all SCP-3208 sufferers will 
experience vivid dreams and hallucinations that include the 
presence of an entity described similarly by all sufferers (this entity 
is designated as SCP-3208-1). As symptoms progress, 
SCP-3208-1's frequency of presence will increase as well. 
Appearances of SCP-3208-1 lead to irritability, feelings of paranoia 
and unease during waking hours which is independent of the 
progression of SCP-3208-related cranial growth. Long-term 
sufferers of SCP-3208, including those who are near the point where 
speech becomes impossible, describe experiencing trepidation 
during both waking and sleeping hours. 


Addendum 3208.1: Discovery - Dream Log 3208.1 
+ Access Addendum 


This is a dream recorded from one of the earliest known 
infected individuals, Mr. Jeffrey Kent. Mr. Kent is 
currently housed at hazardous quarantine facility 904. 


There's this missing girl in town and I'm trying 
to find her in my office. | don't know her at all 
but | know that that she looks like just like my 
daughter. | try to find her at work but she's not 
there. 


My beeper goes off and the whole office stares 
at me. | call the number and the guy on the 
other end tells me she's down at the docks. | 
go down there and find this tall guy with a 
wide-brimmed hat. She's behind him so | try to 
go over but | can't get any closer. 


It's like I'm on a treadmill. | start to run but it 
doesn't make any difference. The guy walks 
into a warehouse with her and | can finally 
move so | follow him. There's a dozen bodies 
hanging from the rafters inside. 


They're all the same little girl. No blood. No 
marks. It's like they're sleeping. 


| hear a noise and | turn around and I'm out in 
a field. The girls are hanging from the sky now 
but they're all awake. They start to scream and 
claw at the rope but | can't hear anything. The 
sun is straight above our heads. 


Then a huge shadow comes down over the 
field and the man with the wide-brimmed hat is 
looking down at me. | can't see his face. He 
grabs all the ropes out of the sky and walks 
away with them. 


| wake up right as the sun comes back. 
Addendum 3208.2: Discovery - Dream Log 3208.2 
+ Access Addendum 


This record is from D-9931 from Site-81. Procedural 
review as to how he became infected during what was 
supposed to be a routine sample collection is still 
ongoing. 


I'm sure | was awake for this but | couldn't 
move and there was someone in the room with 
me. | felt like there were heavy weights on my 
chest. The thing in the corner didn't even seem 
like it was paying attention to me. | tried to 
scream but | couldn't. 


It was just staring out the window. | looked 
over and | wasn't on the 5th floor anymore, 


there was this dusty field that just stretched off 
into the horizon. | looked back over and the 
thing was gone. Then | looked back out the 
window and it was out there in the distance, 
and way bigger than before. 


It felt like | was laying there for months. Pitch 
black arms were growing out of the ground like 
plants the whole time. They tried to claw at the 
thing but it just stood there, staring at me. | 
finally blinked and the field was gone and | 
could move again. That's when | picked up the 
phone to call for the nurse. 


Addendum 3208.3: Discovery - Dream Log 3208.3 
+ Access Addendum 


Note: The following is a standard dream log filed by Dr. 
Isaiah Hostetler in 1993 after his initial infection. 


| am standing in the parlor of my parents’ old 
home, in Maine. They have some guests over, 
but | don’t recognize many of the faces. | smile 
and greet people and serve drinks and | worry 
about whether the food will be ready or not 
when a phone rings. | pick it up and a voice on 
the other end says “come upstairs.” 


| leave the parlor and move towards the 
staircase. | remember it was this huge, 
sweeping thing that some Italian carpenter had 
built for my great-grandfather a hundred years 
ago, but now it ascends into the ceiling with no 
arm rail and | can’t see how high it goes. | hear 
the phone ring in the other room and | am 
suddenly aware that there aren’t any more 
people around. | look out a window and see 
fields, which | don’t realize is out of the 
ordinary but that house overlooked the bay. 


| begin to walk up the staircase, but | can’t find 
my footing. | take several steps, and then 
several more back down, and | begin to feel 
very afraid. The phone is still ringing, louder, 
and now I’m standing in the house after it 
burned down. The staircase in front of me is 
unchanged, but now it just keeps rising up into 
the sky. The ruins are surrounded by fields 
that stretch out for an eternity. 


| start to climb again, and as | rise up the steps 
| can see a figure in the distance. | can’t quite 
make it out but it’s moving towards the house. 


| don’t know how long | climb. Eventually | see 
him, a man in a hat standing next to a 
telephone. The same phone | answered earlier 
in the parlor. I'm back in the parlor. He comes 
up to me and | can see him, plain as day. He 
looks afraid. He says “Did you see it?” When | 
tell him | don’t know what he’s talking about, 
he recoils. “Blighted seed breeds blighted 
crop,” he says, and his eyes grow wide. 


Dr. Hostetler asks Dr. Harold Lang, one of the 
researchers assigned to the SCP-3208 project, 
for water. It is provided and Dr. Hostetler 
resumes after complaining of an increasing 
headache. 


The man leans in very close, staring at my 
eyes. “Listen to me,” he says, “a nightmare 
festers in the field. Their all-seeing eye passed 
over the empty cell. Even the Reaper fears 
what is being sown.” He produces a scalpel. 
“The dreamwalkers are fleeing. They would be 
like smoke before a cyclone. Take this,” he 
hands me the knife, “you cannot stop its 
advance. If it sees you, cut out your eyes. The 
road through the field will be lined with 
corpses, but it may give you enough time to 


escape; by foot or by blade.”