Earlier today, we had a site-wide containment breach. All 
the doors opened because of those “hiccups” | 
mentioned earlier. Most of the remaining staff members 
are dead. Those who are still alive are few and far 
between. We can’t contain a breach of this magnitude. 
And the other Foundation sites will probably ignore it. 
They'll cite it as completely normal and ignore it. 


I’m going to put this in the Vault, then set off the on-site 
nuke. I’m already badly hurt, and the blast would save 
more lives than it will end. If anyone ever finds this, tell 
my wife that | love her and that I’m sorry for spending so 
much time in my job. Tell her that | said goodbye and 
that | am thinking of her as | die. 


— Researcher Darryl Loyd 


Note: This was handwritten on the document, presumably before it 
was put in the Precious Document Vault. There are bloodstains on 
the document. Later analysis proved this to be Dr. Loya’s blood. 
Parts of this document are unreadable due to smearing. 


Addendum-1504-3: The Site nuclear warhead was detonated on 
/ / to counteract a Class-7 Containment Breach. A total of 
anomalies were destroyed in the blast, anomalies were recovered, 


and anomalies are missing, including AO-1504. Foundation 
personnel died in Site 


THIS DOCUMENT HAS BEEN UPDATED 
PER THE NEW INFORMATION 
RECOVERED FROM SITE . 


Item #: SCP-1504 
Object Class: Keter 


Special Containment Procedures: SCP-1504 is not currently 
contained. If any Foundation personnel see the subject, they are to 
contact the current project head. In the event SCP-1504 is found, it 
is to be brought to Area 1141 and contained in a 3m X 3m X 3m 
containment chamber. 


To enter the subject’s containment chamber, a total of four Level 3 
staff members are needed. Two staff members must remain inside 
the control room to remotely enact the failsafe should a containment 
breach occur. The failsafe consists of flooding the containment 
chamber and surrounding areas with Halothane vapor, which has 
proven to be the only viable method to incapacitate SCP-1504. 
Extensive research has shown that SCP-1504 can be incapacitated 
by blunt force trauma to the head. The subject is to be kept fully 
confined and incapacitated at all times through the use of restraints 
and Halothane vapor. 


The other staff members must release multiple locks simultaneously. 
A minimum of four guards are to be protecting them at this time. 
After all locks are released, one staff member may enter the 
containment chamber. The guards must be ready for a containment 
breach at all times the containment chamber is open. 


No automatic systems may be used in Area 114. All doors and 
containers must be locked using simple combination locks or simple 
padlocks. All personnel working at Area 114 must have a high 
aptitude for parapsychology or a strong resilience to perception 


shifts. 


Description: SCP-1504 is a Caucasian male, standing at 1.95 
meters tall. The subject's appearance is unremarkable, aside from a 
small birthmark on its right shoulder. SCP-1504’s anomalous traits 
include its inability to be harmed or killed. 


All actions carried out by SCP-1504 will be perceived by surrounding 
individuals as being within expectations for the situation. SCP-1504 
has been known to attack personnel who will then believe 
circumstance or their own doing has hurt them. The subject is able 
to affect electronic and automatic systems. 


SCP-1504 was brought to the attention of the Foundation because 
of its inability to be harmed and was classified as an Anomalous 
Object after initial testing. The subject was held at Site in the 
Anomalous Object wing of the facility. On // ,asite-wide security 
failure and subsequent containment breach resulted in the on-site 
nuclear warhead being detonated. 


SCP-1504 was declared missing after a search of the site did not 
reveal a confirmed death. A low priority search was issued, but was 
soon raised to high priority after the above document was found. 
MTF-Eta-6 (aka. Awareness Filters) was formed to find SCP-1504. 


Addendum-1504-1: After being further analyzed and sent through 

multiple filters, it was discovered that SCP-1504’s responses were 

different from what was previously recorded. The document has 

been updated to include these responses. 

Interviewed: SCP-1504 

Interviewer: Dr. Loyd 

Foreword: SCP-1504 is being questioned on its background. 
Level 3 Access Required 


<Begin Log> 


Dr. Loyd: What is your name? 


SCP-1504: I’m not going to tell you. You'll just 
ignore me. 


Dr. Loyd: Okay. Now, what year were you 
born? 


SCP-1504: Told you. You wouldn't even notice 
if | punched you in the nose. 


Dr. Loyd: Thank you for the year, but do you 
have an exact date? 


SCP-1504: | didn’t give you a fuckin’ year! 
Hey! Hey! Doc, watch this. 


SCP-1504 got up from its seat and proceeded 
to physically assault Dr. Loyd. The subject 
then returned to its seat. 


Dr. Loyd: Oh, excuse me. My nose is 
bleeding. 


Dr. Loyd left the room and returned a few 
minutes later. 


Dr. Loyd: I’m sorry, that was weird. I’ve never 
been prone to random nosebleeds. 


SCP-1504: It's because | fuckin’ punched you. 


Dr. Loyd: Maybe, do you know why you can't 
be hurt? 


SCP-1504: | could say anything. | could do 
anything. | could say that I’m going to rape and 
kill your wife and you wouldn't even notice. 
Hell, | could actually rape and kill your wife and 
you wouldn't notice. I’m living in a virtual hell 
because | can’t die. | am going to step outside 
this room and take the guard’s gun. I’m going 


to shoot myself with that gun and nothing, 
fuckin’ nothing, is going to happen. 


The subject appears to be in tears at this point. 


SCP-1504: Do you know what it feels like to 
be in a room crowded with people and they all 
ignore you? Do you know how hellish my life 
is? | want to die. 


Dr. Loyd: That’s fine. Thank you for your 
cooperation with today’s interview. You may 
return to your room. 


<End Log> 


Footnotes 
1. Area 114 is the primary location for dealing with perception and 
sensory based threats or entities. 


« SCP-1503 | SCP-1504 | SCP-1505 » 


SCP-1505: Paradoxical Avian Propagation 


Item #: SCP-1505 
Object Class: Keter 


Special Containment Procedures: Any sightings of flocks related 
to SCP-1505 propagating or migrating are to be reported 
immediately. Mobile Task Force Lambda-4 (aka "Birdwatchers") is to 
be tasked with controlling the population the subsequent tracking 
and eradication of all duplicate specimens related to SCP-1505. All 
personnel assigned to SCP-1505 will need to be vaccinated against 
the H5N1 virus (avian influenza) and follow standard protocols for 
biological hazardous materials. Areas of high concentration (+1M 
specimens per sq.km) are to be evacuated and cleared using anti- 
personnel artillery shells or thermobaric missiles until at least 98% of 
the flock has been reduced. 


Should the prime specimen (SCP-1505-Alpha) be identified and 
located, a containment aviary is to be constructed at its respawn 
point where population controls can be more easily implemented. 


Anomalies involving Corvus corax specimen, including SCP-2285 
and SCP-2106, are to be monitored for potential contamination by 
SCP-1505. Neutralization protocols are in place in the event 
SCP-1505's effect manifests in these or other anomalies. 


Description: SCP-1505 refers to an anomalous self-propagating 
time loop stemming from a single adult common raven (Corvus 
corax). Specimens of SCP-1505 are observed to naturally repeat 
within a cycle every 10 hours. At the end of the cycle, each 
specimen will instantly duplicate itself twice while the parent will 
respawn at its point of origin to begin its cycle again, repeating its 
behavior exactly as before. Duplicates are observed to act 
independently of the parent and will have different behavioral cycles. 
Changes to the environment or containment seem to have no effect 
on behavior as specimens will act out all of their motions as before 


regardless of what obstacle it is presented with. 


All specimens will repeat this cycle indefinitely until its parent 
specimen is either killed or is eradicated as part of a larger 
paradoxical reset. A direct kill is not capable of eliminating a 
specimen as it will instantly respawn at its point of origin upon death. 
Any kill will also result in resetting the specimen's cycle, effectively 
creating a new cycle where the specimen will behave differently than 
the previous cycle. In theory, if SCP-1505-Alpha is killed/reset, all 
subsequent duplicates should be eliminated. 


If left unchecked, SCP-1505 could have an overwhelmingly 
disastrous effect on agriculture, the environment, and civilization 
itself as flocks propagate exponentially. Large scale buildup of feces 
have led to structural damage as the uric acid in the droppings has 
been observed to corrode stone, metal, and masonry over time. As 
with other avian species, the bacteria, fungal agents, and 
ectoparasites found in the droppings pose a serious health risk to 
humans. All specimens of SCP-1505 also appear to be carriers of 
the avian influenza virus. 


+ Open SCP-1505 Experimentation Logs 
Experiment505-01 


Subject: A flock observed to frequent a large 
oak tree as part of their cycle. 

Procedure: The tree is cut down to observe 
the flock’s reaction to changes in the 
environment. 

Results: All specimens are observed to 
position themselves in midair relative to the 
branches’ former positions. As each specimen 
attempts to land, they close up their wings and 
fall to the ground. The surviving specimens 
lying on the ground are observed to behave as 
if they were perched on a branch, unaware 
that they are in fact on the ground. 


Experimenty505-02 


Subject: A single specimen recently 
duplicated from its parent. 

Procedure: Specimen is captured manually 
and placed into a large clear acrylic box before 
it could fly away. 

Results: After its cycle completed, the 
specimen respawned at its point of origin 
producing two duplicates inside the box. After 
respawning the specimen appeared to struggle 
as if something were holding it down. 2 
minutes later the specimen remained on its 
feet for the remainder of its cycle, never 
moving from its position. 


Experimenty505-02.1 


Subject: Two specimens with established 
cycles. 

Procedure: Specimens were produced as part 
of Experiment 1505-02 and left inside the box. 
Results: After 3 cycles the specimens have 
duplicated themselves to the point of 54 
individuals, effectively filling the box to 
maximum capacity. Only specimens belonging 
to the first cycle are docile while the rest are 
extremely agitated. During the 4 cycle, all 
162 specimens are instantly crushed inside the 
box under their own spatial constraints. This 
prompted a paradoxical reset as all duplicates 
inside the box were eliminated. The original 
two specimens were then observed by 
themselves inside the box as in the beginning 
of the experiment. 


Experimenty505-02.2 


Subject: Two specimens and a normal raven 
not associated with SCP-1505. 

Procedure: Specimens were produced as part 
of Experiment 1505-02.1 and left inside the 


box. A normal raven was then placed into the 
box with the other specimens to observe their 
reaction. The two specimens do not have 
established cycles yet. 

Results: After the raven is placed inside the 
box with the two specimens, it is immediately 
attacked and killed. It is not known what 
prompted this attack. Multiple reports 
regarding altercations involving specimens and 
other ravens have been corroborated by this. It 
is possible that the Corvus corax species may 
be threatened. 


Addendum-1505-001: Based on the results of the latest 
experiment, efforts are currently underway to identify and capture 
ravens that are not associated with SCP-1505. Computer algorithm 
projections based on SCP-1505's rate of propagation indicate that 
the Corvus corax species may already be at severe risk of 
extinction. Any captured ravens are to be relocated to the nearest 
Foundation controlled aviary to be kept in isolated captivity. This is 
to ensure the preservation of the species if possible. To date, only 
61 ravens have been recovered from existing civilian aviaries. 


« SCP-1504 | SCP-1505 | SCP-1506 » 


SCP-1506: Aerial Arachnid 


Item #: SCP-1506 
Object Class: Keter 


Special Containment Procedures: High-resolution satellite 
imagery is to be processed by computer for possible SCP-1506-1 
occurrences. Once confirmed as an occurrence, SCP-1506-1's 
position is to be monitored and checked against computer modelling 
of wind patterns. Should SCP-1506-1 rapidly descend or ascend into 
a wind current predicted to take SCP-1506-1 through human 
populated areas, MTF Phi-17 (aka "The Arachnophobes") are to be 
readied for Procedures 1506-A, 1506-B and 1506-C. 


Procedure 1506-A: Using mobile anti-smog fans, MTF Phi-17 are to 
attempt to guide SCP-1506-1 into a wind current predicted to take 
SCP-1506-1 towards a local nature reserve populated with larger 
mammaiia. If necessary to disguise the procedure from the public, 
cover will be provided as cutting edge industrial agriculture testing in 
rural areas and as air quality specialists in uroan areas. 


Procedure 1506-B: Should 1506-A fail to keep SCP-1506-1 away 
from human population centres, MTF Phi-17 are to begin a type-B 
amnestic treatment as necessary for witnesses of predation. 


Procedure 1506-C: MTF Phi-17 are to use mobile stasis locks to 
contain the area around SCP-1506-1 while flamethrowers and 
arachnocide-7 are used to disperse SCP-1506-1. Arachnocide-7's 
boiling point is above 1500° C, making it safe to use with 
conventional flame throwers. Under no circumstances may 
arachnocide-7 be used without stasis locks active to contain the 
aftermath. Arachnocide-7 must not be allowed to enter the 
biosphere. 


Procedure 1506-D: Following incident 1506-Sigma, any instance of 
SCP-1506-1 larger than 200 cubic metres in commercial flight paths 


are cleared for immediate barometric implosion using FAE 
detonation contained via mobile stasis lock. 


SCP-1506-1-14 is contained at Site 9 in a pressure controlled Large 
Animal Containment cell. Atmospheric pressure is to be maintained 
to keep SCP-1506-1-14 approximately in the centre of the 
containment cell. When SCP-1506-1-14 descends to an artificial 
altitude of less than 500m, viable prey animals are to be introduced 
to the cell. It has been calculated that kg of food over a four week 
period will keep the colony at its current size. In the event of 
containment breach arachnocide-7 will be deployed in combination 
with increasing containment cell pressure to atmospheres. 
Arachnocide-7 must not be allowed to enter the biosphere. 


+ Access previous procedures 


SCP-1506's position is to be monitored and 
checked against computer modelling of wind 
patterns. Should SCP-1506 rapidly descend or 
ascend into a wind current predicted to take 
SCP-1506 through human-populated areas, 
MTF Phi-17 (aka "The Arachnophobes") are to 
be readied for Procedures 1506-A and 1506-B. 


Description: SCP-1506 is the designation for the global 
phenomenon which spontaneously generates instances of 
SCP-1506-1.