Marshall, Carter and 


medical use. 
Scientific samples 
Kept for analysis. 
Used as a form of 
birth control and 
treatment for STis. 
Used as an industrial 
and agricultural 
pesticide. 

Various private 
individuals with 
diverse needs. 


Dark, LLP 
HYTCH/8FNE6/ 
Sender Hugo Boyle Recipient | Samuel 
Woodward 
While | 


understand the 
necessity of 
meeting our 
customers' 
demands, any 
significant 
increases in our 
supply of the 
item are 
unfortunately 
unfeasible at the 
current time. 


What you must 
understand is 
that our supplies 
of unicorn horn 
are inherently 
limited by 


biology. The 
gestation period 
of a unicorn is 
nearly a full 
year, and at 
least 2 years of 
postnatal growth 
are required 
before the colts 
have developed 
mature horns 
suitable for 
harvesting. 
(Remember also 
that only the 
males of the 
species have 
horns, so only 
50% of unicorn 
foals end up 
contributing to 
Our supplies.) 
While these 
horns do regrow, 
this process 
requires a full 
year. As each 
unicorn can only 
be expected to 
provide 20 to 25 
horns over its 
entire lifetime, 
and given the 
expense 
involved in 
housing and 
handling 
unicorns, current 
policy is to 
slaughter most 


captured five hours later. Documents written in English. D- involved 
in test reported seeing a beautiful and seductive woman. 


Test 3: Personnel D- , a non-native English speaker, sits in 
SCP-738-2 

Results: Papers written in D-  's native language, as is spoken 
communication. D- offered the power to never be held in a cell 
again. Price is stated to be memories of D- 's mother. D- accepts 
offer. After acceptance [DATA EXPUNGED] resulting in the deaths 
of 12 guards, and D- 


Test 4: Personnel D- _ , dyslexic and seriously mentally retarded, 
sits in SCP-738-2 

Results: The language on the parchment appeared to be crude 
pictograms representing the deal, though some words in English 
were represented in the parchment. In general the English was 
unrelated to the pictures they were under and frequently insult D- 

's intelligence, and state that the entity is uncertain how much of 
this D- understands. D-_ was offered a Sloppy Joe. Price was 
stated to be Mopsy, atoy that D- had been allowed to smuggle 
into the Foundation. D- accepted and food was materialized upon 
the desk, along with antique silverware, fine china plate, and crystal 
glass 'sippy cup' with wine colored grape juice. D- shows great 
distress when upon discovering that Mopsy was missing after 
finishing meal. D- reports seeing a large pink rabbit. After deal 
was complete, and D- __ left chair, recorders picked up a sigh. 
Voiceprint of sigh does not match D- _'s voice. 


Test 4 followup: D- issued toy exactly identical to 'Mopsy' 
Result: As soon as D- — named the toy Mopsy, it vanished. D- 
showed great emotional distress. 


Test 5: Destruction testing 

Result: [DATA EXPUNGED], explosive, fire, gunshot, mechanical 
wood chipper fail. Direct attack upon desk with axe leaves a single 
gash, with depth of 3 mm and results in [DATA EXPUNGED] as well 
as death of attacking personnel. Gash remains in desk. Video logs 
show gash healing at a rate of 1 um per day. 


Test 6: Researcher sits in SCP-738-2. Asks "What are you" 
Result: Entity, taking the appearance of a large snake, states "I'm 


colts after the 
first horn 
harvest, 
retaining only a 
small number of 
males as stud. 
The slaughtered 
colts are, of 
course, 
butchered and 
processed into 
various 
additional 
products, which 
provide a not- 
insignificant 
source of 
additional 
revenue. 


As you can see, 
what this means 
is that every two 
years, we can 
only produce a 
number of horns 
equal to half of 
our number of 
breeding mares. 
At an average 
horn weight of 
18 ounces, and 
given our current 
breeding stock, 
this produces 
approximately 
28 pounds of 
horn every two 
years. We are, 
of course, 


working to 
increase our 
breeding stock, 
but it takes five 
years for a mare 
to reach 
reproductive 
age, and 
breeding 
unicorns at this 
age often results 
in complications. 
Additionally, 
we've 
encountered 
problems with 
several stallions 
attempting to 
auto-cannibalise 
their own horns 
(as well as 
mares 
attempting to eat 
the horns of their 
partners), 
resulting in the 
termination of 
otherwise viable 
animals. We are 
investigating 
ways to prevent 
this behavior, 
which should 
greatly increase 
our production 
rates. 


Until such time 
as the supply 
has been 


stabilized, | 
suggest that you 
limit the 
availability of the 
item in an 
attempt to 


Marshall, Carter 
and Dark, LLP 


HYTCH/8FNE6/ 
Sender Mildred Morel Recipient 
The selective 
breeding 
program is finally 
starting to 
provide 
substantial 
returns. Among 
the most recent 
experimental 
group (59B), 
70% of colts had 
achieved 
maximum horn 
growth by 9 
months, and 
90% of colts had 
achieved 
maximum horn 
growth by 1 
year. Further 
reductions in 
horn 
development 
rate will provide 
only marginal 
increases in 


Hugo Boyle 


production rate, 
as the gestation 
period remains 
at 11 months. 
Future efforts 
should focus on 
increasing 
average horn 
size and 
encouraging 
mutations that 
result in multiple 
horn growths. 


Given the high 
rate of horn 
production now 
achievable via 
group 59B 
unicorns, | am 
once again 
recommending 
that breeding 
stallions have 
their horn 
growing tissue 
chemically 
cauterised to 
prevent parental 
infanticide. While 
this will eliminate 
the possibility of 
repeated horn 
harvesting from 
stallions, these 
additional 
harvests will no 
longer represent 
a significant 
portion of our 


yearly horn 
production, 
making such 
losses 
acceptable. 
Chemical 
cauterisation of 
the horn is 
expected to 
reduce the cost 
of housing per 
each animal, 
and will likely 
extend the 
lifespan of our 
breeding stock 
(as many 
stallions injure 
themselves 
attempting to 
damage the 
currently used 
restraint 


Marshall, Carter 
and Dark, LLP 


Incident Report 


HYTCH/8FNE6/ 
Author Hugo Boyle Date October 5, 1963 
A recent 
sabotage 
attempt by 
individuals 
believed to be 
affiliated with the 
Serpent's Hand 
has left a large 


number of the 
animals dead or 
injured. 


Following the 
transition to 
using the 59B 
unicorns for 
breeding stock, 
housing 
procedures were 
overhauled to 
utilize chemical 
cauterisation of 
the horns of 
breeding 
stallions, reduce 
the reliance on 
mechanical 
restraints, and 
increase the 
amount of free 
space available 
to each animal. 
These changes 
were done in an 
attempt to 
improve the 
health of 
breeding 
animals in order 
to maximize their 
individual 
usefulness. As 
part of these 
efforts, it was 
necessary to 
contract 
additional 
handlers to work 


with the animals. 
These contracts 
were managed 
by my 
predecessor, the 
former 
supervisor of the 
project, Samuel 
Woodward. 


Unknown to 
Woodward, 
several of these 
new handlers 
were infiltrators 
working on 
behalf of the 
Serpent's Hand, 
and were 
seeking to put 
an end to our 
activities 
involving the 
unicorns. On the 
night of October 
1, they 
attempted to 
release the 
animals from 
their pens, only 
to meet their 
demise after the 
creatures 
panicked and 
attacked them. 
Several of the 
animals were 
unfortunately 
terminated 
during 


subsequent 
efforts to 
recontain them, 
and a number of 
security staff 
suffered serious 
but non-fatal 
injuries. 
Somewhat 
alarmingly, upon 
seeing the 
deaths of their 
fellows, many of 
the animals 
seemed to 
become even 
more 
aggressive, 
going so far as 
to cause injury to 
themselves in 
attempts to 
attack the 
security staff. 


At this time, | am 
conducting a 
review of all 
employees and 
contractors 
involved in the 
project, and 
intend to institute 
a number of 
modifications to 
our handling 
procedures that 
should reduce 
our reliance on 
contracted 


Marshall, Carter 
and Dark, LLP 


External Report 


HYTCH/8FNE6/ 
Organisation Prometheus 
Laboratories, 
E: 
Method of | Document was 
Acquisition) shared with this 
company as part 
of a project 
oposal. 
Document 
GRANT 
REQUEST FOR 
THE 
DEVELOPMENT 
OF UNICORN- 
DERIVED 
INSECTICIDES 
TO REPLACE 
DDT 


PROBLEM 


Last year, the 
United States 
banned the use 
of 
dichlorodiphenyltrichloroethane 
(DDT), one of 
the most 
effective 
commercial 
insecticides in 
common use. 


Acquired 


June 4, 1973 


This ban comes 
amid a wave of 
international 
restrictions on 
DDT, which are 
expected to 
continue to grow 
over the next 
decade. As a 
result, there is 
now a niche 
available for new 
potent industrial 
pesticides, 
equivalent in 
strength and 
efficacy to DDT, 
but without its 
many ecological 
and 
environmental 
hazards. We 
believe that such 
an insecticide 
could be 
produced from 
the processed 
horn of unicorns. 


SOLUTION 


The horn of the 
unicorn (Equus 
castus), when 
powdered and 
ingested, acts as 
a unique 
retrocausal 
contraceptive, 
eliminating all 


sorry. It's against policy to divulge personal details. But may | 
interest you in [DATA EXPUNGED]". Researcher stood from chair, 
shaking and ending the session. Researcher was then placed in 
mental institution 5 awaiting review due to information revealed by 
offer. 


Test 7: Sheldon Katz, Esq., senior counsel with the Foundation's 
legal department. 

Result: At commencement of test, Mr. Katz presented the entity with 
a notarized, apostilled affidavit stating that he was participating in 
the test on his own behalf and not as agent for the Foundation. 
Approximately forty-one hours after the commencement of the test, 
Mr. Katz lapsed into unconsciousness due to exhaustion. Mr. Katz 
described the appearance of the entity as identical to his first-year 
contracts professor from law school, but he declined to describe the 
nature of the offer that had been made. He reported that just prior to 
his blacking out, he had been in the midst of negotiating a precise 
technical definition of the word "shall". Katz stated that the current 
working draft of the agreement that he and the entity had been 
drafting was at least nine hundred pages long at that moment, 
exclusive of exhibits and schedules, and that he regretted not 
keeping a copy for his form file. A red leather envelope, smelling of 
sulphur, was found on Mr. Katz's person, which contained a 
handwritten note reading "Please come back any time. | haven't had 
so much fun in years." Mr. Katz has requested reassignment. 


Remaining tests require level 4 clearance or higher to view until 
declassification complete 


Addendum 738-3: Notes 


In recent testing, offers have been made directly to the researchers 
who were telling the subject what to do. Recommend cessation of all 
testing. ~O5- 


« SCP-737 | SCP-738 | SCP-739 » 


physical side- 
effects and 
results of sexual 
reproduction. 
When consumed 
by an organism 
with extant 
offspring, that 
organism's 
contributions to 
the genomes of 
its offspring are 
removed, which 
in most species 
results in the 
immediate death 
of those 
offspring. This 
effect has been 
most studied in 
mammals, 
particularly 
humans, but 
initial 
experimental 
trials suggest 
that it is just as 
effective in other 
species, 
including insects 
with external 
fertilization. 


As a pesticide, 
unicorn horn has 
the potential to 
be one of the 
most effective 
insecticides in 
history, due to 


the eusocial 
nature of many 
insect species. 
Ingestion by a 
colony queen 
would result in 
the 
extermination of 
most or all of the 
colony. The 
destructive 
potential among 
non-eusocial 
insects is lower, 
but still greater 
than in 
mammals, due 
to the extremely 
high 
reproductive 
rates of most 
insect species. 


BUSINESS 
CASE 


This product 
would be 
marketed as an 
industrial 
pesticide, for use 
in rapidly 
exterminating 
large infestations 
of insects. 
Individual 
consumer use 
would likely be 
limited, due to 
the low demand 


for such potent 
insecticides 
among 
individuals, 
although termite 
infestations 
present a 
possible 
residential use 
case. 
Agricultural use 
would likely also 
be limited, as the 
indiscriminate 
nature of the 
pesticide would 
pose a 
significant threat 
to pollinators 
and other 
beneficial 
insects. 


USE OF 
FUNDING 


Most of the 
funding for this 
project would be 
directed towards 
researching 
neutralizing 
additives (see 
KNOWN 
ISSUES for 
details). 
However, once a 
suitable additive 
is discovered, it 
should be 


relatively cheap 
to designa 
manufacturing 
process that 
converts raw 
unicorn horn into 
a usable 
insecticide. As 
such, the overall 
R&D budget for 
this project is 
estimated to be 
no more than 
250,000 USD. 


KNOWN 
ISSUES 


The largest 
obstacle to using 
unicorn horns as 
an insecticide is 
the non- 
discriminating 
nature of the 
contraceptive 
effect. If 
deployed 
unaltered, there 
is a significant 
risk of wide- 
spread 
ecological 
collapse caused 
by powdered 
horn 
accumulating in 
runoff. Some 
kind of additive 
would need to 


be developed 
that neutralizes 
the effects of the 
powder in non- 
pest species, 
which will 
require a greater 
understanding of 
the mechanism 
of action behind 
the 
contraceptive 


Marshall, Carter 
and Dark, LLP 


HYTCH/8FNE6/ 

Sender Mildred Morel Recipient 
While | agree 
that the PL 
proposal is 
intriguing, 
pesticide 
production on 
the scale they 
are suggesting 
would require us 
to increase our 
own horn 
production by an 
order of 
magnitude or 
more. Obviously, 
this could be 
done by 
increasing our 
breeding stock, 
but | am 


David Barlow 


hopefully 
understandably 
wary of the 
massive 
increase in 
capital and labor 
that would be 
required to 
support such a 
large herd. 


That's why I've 
authorized a 
series of in- 
house genetic 
experiments to 
try and increase 
the amount of 
horn produced 
by each unicorn. 
Anthony 
believes that we 
can use PL's 
TAG process to 
induce controlled 
mutations in 
adult specimens 
that will lead to 
further horn 
growth, which 
should hopefully 
allow us to 
increase our 
production 
capacity without 
further 
expanding our 


Marshall, Carter 
and Dark, LLP 


HYTCH/8FNE6/ 
Sender Anthony Morel Recipient 
The TAG 
process finally 
bore fruit with 
experimental 
group 75F, 
resulting in a set 
of specimens 
with horn 
growing tissue 
covering 80% of 
their skeleton. 
The creatures 
are barely 
recognizable as 
unicorns 
anymore, but the 
horns they 
produce are still 
functional. Each 
animal now 
produces almost 
40 kilograms of 
horn every 6 
months, which 
will actually let 
us downsize our 
breeding 
operations while 
still increasing 
production to the 
necessary rates. 


| recommend 
that we stop 
maintaining a 


Mildred Morel 


supply of stud 
stallions, and 
instead rely on 
artificial 
insemination of 
the breeding 
mares. This will 
allow us to 
harvest horn 
from all of the 
stallions. Due to 
the tendency of 
the 75F animals 
to impale 
themselves on 
their own horns 
(one animal 
even managing 
to castrate itself, 
something which 
| would not have 
thought 
possible), | 
recommend that 
they be kept in 
chemically 
induced comas 
from shortly after 
birth until their 
death, which will 
allow their horns 
to (re)grow and 
be harvested 
without 
interference 
every 6 months. 
Because we 
won't be 
slaughtering the 
extra colts