When removed for study, SCP-033 can be copied to a white/ 
chalkboard with 033-Safe dimensions by Class D staff. Upon 
transfer to the white/chalkboard, the paper-like product that had 
contained SCP-033 should be incinerated. Observation and study 
should take place in a secured conference room at least 30 meters 
from any computing or recording device for the maximum 2560 
second viewing window. All observations or notes should be made 
on 033-Safe materials. Under no circumstances should any notes 
regarding SCP-033 leave the storage facility or be input into a 
computing or recording device. 


At precisely 2000 seconds of viewing, research must stop and 
SCP-033 should be transferred to a new 033-Safe paper-like 
product and returned to storage by Class D staff. The white/ 
chalkboard utilized in research must be incinerated as soon as 
possible after the transfer is complete, regardless of whether 
SCP-033 has faded "naturally" from its surface at 2560 seconds. 


Whether 033-Safe procedures halt or merely slow the deleterious 
effects of SCP-033 is unknown. It is theorized the irregular borders 
and hand-crafting by mathematically unpredictable humans 
somehow disrupt the logic which allows SCP-033 to function. 


Description: SCP-033 appears as a field of complex mathematical 
symbols ranging from simple layman-identifiable representations to 
those only interpretable by highly-trained mathematicians. The 
"sum" of the symbols is equal to a previously unknown integer 
(designated Theta Prime by Prof. Hutchinson) of intermediate value 
between and . 


As all modern mathematical calculations are performed lacking the 
knowledge or use of SCP-033, its introduction into any system 
organized without it begins eroding the numerical and eventually 
structural integrity of said system. This effect extends to SCP-033's 
transfer to any paper-like (defined as paper, vellum, papyrus, 
canvas) surface not possessing 033-Safe dimensions or any 
computing or recording device it is input into. If inscribed on any 
other material, SCP-033 fades into unintelligibility in precisely 2560 
seconds. In addition, SCP-033 has shown an ability to "leap" from 
an 033-Safe material to a manufactured or electronic material which 
it can destabilize in at least one (1) instance (Incident report 033-D), 
requiring the institution of a 30 meter safe distance for electronic 
devices and paper-like products without 033-Safe dimensions. 


There is currently no 033-Safe specification for electronic storage. 
of the operational research projects involving SCP-033 are 
dedicated to finding such a method for electronic storage. 
operational research projects are dedicated to the application of 
SCP-033 as a neutralizing factor for potentially hostile, machine 
logic-based SCP objects. Clarifying commentary from Prof. 
Hutchinson follows for non-specialist staff in document 033-A. 
Effects may be reviewed in document 033-Q. 


Document 033-A: Debriefing of Prof. Hutchinson after first 
observation. 


[Transcript edited for clarity] 


Prof. Hutchinson : Every school child knows that 2 plus 2 is 4. The 


solid mathematical certainty of numerical order and value is the 
basis for all logic-based systems. We know that after 2 comes 3 and 
after 3 comes 4. What this formula proves is that we missed a 
number somewhere. Imagine if all our technology was based on the 
belief that after 4 came 6. We simply didn't know or conceive of 5. 
That is, in essence, what this formula proves—we missed a number. 


Prof. Hutchinson : | can't tell you why the hand-crafted vellum works 
best. | can only surmise that it displaces mathematical predictability 
in two ways. One, the irregularity of the crafting process due to 
human error serves to eliminate any traces of regularity that would 
be found in a machine-created product. Two, the irregular borders 
seem to confuse it somehow, as if it gets locked up looking for a 
pattern to identify and use as an escape hatch. I'll tell you this, 
though, | don't think it should be left on anything longer than a few 
days. It will find a pattern eventually. 


Prof. Hutchinson : | don't think it "destroys" anything. | think it tries 
integrating itself into our system and our system can't hold it. It's like 
trying to cram another book into a full bookshelf. If you get a 
hammer, you can get it in there, but the whole shelf bursts 
eventually. If it gets out into the internet, we will potentially 
experience a full IT infrastructure collapse within hours. 


Document 033-Q: Test results, Trial 033-Delta 5. 


SCP-033 inscribed onto a single sheet of standard eight point five 
(8.5) by eleven (11) inch manufactured white copy paper (hereafter 
X1). A second sheet of identical paper (hereafter X2) placed 30 
centimeters away. 


80 seconds: Symbols consistent with the content of SCP-033 begin 
appearing on X2. X1 unchanged. 


160 seconds: Full content of SCP-033's formulae appear on the 
surface of X2. X1 unchanged. 


320 seconds: X1, X2 both appear wet. Symbols still visible. 


640 seconds: X1 is now roughly one (1) part (apparently) water and 
five (5) parts pulp-like substance, still filling an eight point five (8.5) 


by eleven (11) inch flat plane. Symbols become unintelligible. X2 still 
appears wet, symbols visible. 


1280 seconds: X1 no longer visible at all. Liquid part appears to 
have evaporated, pulp-like substance apparently sublimated. X2 
now roughly one (1) part liquid and five (5) parts pulp-like substance, 
still filling an eight point five (8.5) by eleven (11) inch flat plane. 
Symbols unintelligible. 


2560 seconds: X2 no longer visible at all. Liquid part appears to 
have evaporated, pulp-like substance apparently sublimated. 


« SCP-032 | SCP-033 | SCP-034 » 


SCP-034: Obsidian Ritual Knife 


Item #: SCP-034 
Object Class: Safe 


Special Containment Procedures: SCP-034 is to be kept ina 
secure room with access granted only to Level 4 personnel. 
SCP-034 itself will be kept in a locked case that is under 24-hour 
surveillance. When not in lab conditions, SCP-034's protective 
sheath cannot be removed under any circumstances. Any personnel 
in contact with SCP-034 must be placed under a 24-hour 
observation period until their identities can be confirmed. 


Description: SCP-034 is a primitive knife constructed out of pure 
obsidian. Tests reveal that SCP-034 is approximately 1000 years 
old. Despite its crude method of construction and age, SCP-034 is 
still incredibly sharp and requires no maintenance at all. Expert 
analysis hypothesizes that SCP-034 may be of South American 
origin, and that it was used in Native American rituals. Several 
accounts from Spanish conquistadors exploring the region 
support this hypothesis, with detailed writings on how priests 
would flay their victims alive with similar knives and wear their skin 
as a tribute to their gods. 


SCP-034 has the ability to allow its bearer to take on the 
appearance of another individual. If SCP-034 is used to cut a piece 
of flesh from a living individual, and that piece of flesh is placed 
against the skin of another individual, the second individual would 
take on not only the appearance, but all physical characteristics of 
the first individual. Testing has shown that the minimum amount of 
skin required can be as little as one (1) square centimeter. However, 
testing has also revealed that the amount of time the facade lasts is 
directly proportional to the amount of flesh used. The ratio of time 
the facade lasts to flesh used has been measured at approximately 
one (1) hour for every square centimeter used. Once the time limit 
has passed, the affected individual will revert to his original form. 


Analysis of SCP-034's ability shows that its method of mimicking 
another individual is nearly flawless. Not only does SCP-034 change 
physical appearance, but actual physical attributes as well, including 
height, weight, muscle mass, bone density, hair growth, eyesight, 
strength, physical medical conditions, and even DNA. Subjects still 
retain their original personality and memories. Even though the 
process is nearly instantaneous, taking only a few seconds, human 
test subjects have described the transformation process as 
extremely painful. Subjects also may suffer psychological trauma 
depending on the extent of their physical transformation. Side 
effects are especially serious if the subject takes on the appearance 
of a person with differing gender or with wildly different physical 
attributes. 


However, in order to function properly, the individuals who have their 
flesh cut off by SCP-034 must still be biologically alive to maintain 
the facade. Should the individual whose identity has been stolen 
expire, the effect immediately wears off. Further details may be 
found in Lab Report 034A. Also, SCP-034 only appears to work on 
human subjects. Cross-species experiments with SCP-034 have 
resulted in [DATA EXPUNGED] 


SCP-034 came into Foundation possession when an imposter 
disguised as Dr. attempted to infiltrate Site . The impostor was 
apprehended when authorities discovered the real Dr. tied up in 
his home with a large portion of his right arm skinned. Further details 
may be found in Post Interrogation Report 2211. 


Lab Report-034A: We've decided to test several scenarios dealing 
with the limits of SCP-034's capabilities. 


“Test 1: Sample taken from deceased human cadaver and applied 
to subject D-452. No effect. 


*Test 2: Sample taken from D-532 and applied to D-452. D-452 
successfully mimics D-532's appearance. Upon termination of 
D-532, D-452 immediately reverts back to original form. 


“Test 3: Sample taken from a brain-dead medical patient and 
applied to subject D-452. D-452 successfully mimics the patient's 
appearance and manages to maintain the facade. 


“Test 4: Sample taken from a terminally ill medical patient and 
applied to subject D-452. The patient's terminal illness was caused 
by an inherent genetic defect. D-452 successfully mimics the 
patient's appearance as well as the patient's illness. Both the 
terminally ill patient and D-452 expire at the same time, after which 
D-452 reverts back to original form. 


*Test 5: [DATA EXPUNGED] 
Post Interrogation Report 2211: 


As per standard operating procedure, we first attempted to 
interrogate the prisoner via non-violent and non-invasive means. 
However, when such methods proved ineffective, we began to 
implement conventional interrogation techniques. While partially 
successful, we deemed it necessary to use SCP- ,SCP- , SCP- 
and SCP-_ . We managed to learn the following facts: 


*The prisoner had extensive knowledge on the existence of the 
Foundation and its inner workings. 

*The prisoner had extensive knowledge on other SCP-related 
agencies and groups. 

*The prisoner was not acting under any official capacity from any 
government agency. 

*The prisoner obtained SCP-034 and instructions on its operation 
from an unknown benefactor. 

*The prisoner was given very specific instructions to infiltrate Site- 
and maintain his position until further notice. 

*The prisoner had enough samples of Dr. to stay within Site- 
for days. 


Regrettably, the prisoner did not survive interrogation. -Agent 


« SCP-033 | SCP-034 | SCP-035 » 


SCP-035: Possessive Mask 


Item #: SCP-035 
Object Class: Keter 


Special Containment Procedures: SCP-035 is to be kept within a 
hermetically sealed glass case, no fewer than 10 centimeters (4 
inches) thick. This case is to be contained within a steel, iron and 
lead-shielded room at all times. Doors are to be triple-locked at all 
times, with the exception of allowing personnel in or out. No fewer 
than two (2) armed guards are to be posted at any time. Guards 
must remain outside at all times and are not allowed within the 
containment room under any circumstances. A trained psychologist 
is to remain on site at all times. Research personnel are not to touch 
SCP-035 at any time. SCP-035 must be moved to a new sealed 
case every two (2) weeks. The previous case must be disposed of 
via SCP-101, as it shows no adverse reactions to SCP-035's 
“corruption”. Anyone who comes into contact with SCP-035 when it 
is in possession of a host is to be given an immediate psychological 
evaluation. 


Description: SCP-035 appears to be a white porcelain comedy 
mask, although, at times, it will change to tragedy. In these events, 
all existing visual records, such as photographs, video footage, even 
illustrations, of SCP-035 automatically change to reflect its new 
appearance. 


A highly corrosive and degenerative viscous liquid constantly seeps 
from the eye and mouth holes of SCP-035. Anything coming into 
contact with this substance slowly decays over a period of time, 
depending on the material, until it has decayed completely into a 
pool of the original contaminant. Glass seems to react the slowest to 
the effects of the item, hence the construction choice of its 
immediate container. Living organisms that come into contact with 
the substance react much the same way, with no chance of 
recovery. Origin of the liquid is unknown. Liquid is only visible from 


the front, and does not emerge or is even visible from the other side. 


Subjects within 1.5 to 2 meters (5-6 feet) of SCP-035, or in visual 
contact with it, experience a strong urge to put it on. When SCP-035 
is placed on the face of an individual, an alternate brain wave 
pattern from SCP-035 overlaps that of the original host, effectively 
snuffing it out and causing brain death to the subject. Subject then 
claims to be the consciousness contained within SCP-035. The 
bodies of "possessed" subjects decay at a highly accelerated rate, 
eventually becoming little more than mummified corpses. 
Nevertheless, SCP-035 has demonstrated the ability to remain in 
cognitive control of a body experiencing severe structural damage, 
even if the subject's body literally decays to the point where motion 
is not mechanically possible. No effect is found to be had when 
placed on the face of an animal. 


Conversations with SCP-035 have proven to be informative. 
Researchers have learned various details about other SCP objects 
and history in general, as SCP-035 claims to have been at many 
momentous events. SCP-035 displays a highly intelligent and 
charismatic personality, being both amiable and flattering to all those 
who speak with it. SCP-035 has scored in the 99th percentile on all 
intelligence and aptitude tests administered to it, and appears to 
have a photographic memory. 


However, psychological analysis has discovered SCP-035 to 
possess a highly manipulative nature, capable of forcing sudden and 
profound changes to interviewer's psychological state. SCP-035 has 
proven to be highly sadistic, prompting some to commit suicide and 
transforming others into near-mindless servants with linguistic 
persuasion alone. SCP-035 has stated that it has intimate 
knowledge of the workings of the human mind and implied that it 
could change anyone's views if given enough time. 


Additional: SCP-035 was found in a sealed crypt in an abandoned 
house in Venice, in 18 . 


Addendum 035-01: SCP-035 has been found to be able to possess 
anything that has a humanoid shape, including mannequins, 
corpses, and statues. SCP-035 has been able to motivate all into 
movement, removing the need to expose live subjects to SCP-035. 


Still, anything it possesses inevitably decays into motionlessness. 


Addendum 035-02: SCP-035 has facilitated an escape attempt, 
convincing several of the research staff to aid it in its bid for 
freedom. Insurrection failed. All staff that have been in contact with 
SCP-035 have been terminated, and mandatory psychiatric 
evaluations have been implemented for all personnel coming in 
contact with SCP-035.