Per 
Item #: SCP-5241
Object Class: Keter
Special Containment Procedures:
SCP-5241-A is to be kept in a concrete cell measuring precisely 6.5 meters in length, 3.5 meters in width, and 4 meters in height. The specimens containment area must be approximately 17 meters away, at a minimum, from any area of high activity within the facility it is being kept in. Only designated personnel are to come within the 17 meter distance, except for Class-D subjects that are being used in testing.
Before entering the designated ‘play zone’ of SCP-5241-A, all personnel, Class-D or otherwise, must be fitted with a hazmat suit and oxygen tank. Personnel are also not allowed to speak when within visual contact with SCP-5421 unless told to do so by SCP-5241 itself. Failure to comply with these safety procedures will result in termination via incinerator.
SCP-5241-A’s containment cell is designated as his ‘Play Zone’ as per the specimens request. Failure to refer to his containment room as the ‘Play Zone’ when within earshot of the specimen will result in an instance of SCP-5241-K. If such an event transpires, all personnel involved must remain in a secured, soundproof room for 72 hours. If any subjects turn into SCP-5241-L, all instances must be incinerated.
Revision I: SCP-5241-A is to not move it’s containment cell as of ██/██/20██. Only staff with security clearance 4 or higher are allowed within the 17 meter distance of SCP-5241-A’s containment cell. SCP-5241-A is to be constantly monitored via the 5 security cameras placed in its containment chamber, and must be talked to, in person, every 3 days. Failure to do so will result in SCP-5241-A’s influential powers to increase in range.
Revision II: The concrete walls of SCP-5241-A's containment chamber are to be reinforced from the outside with steel plates approximately 20 centimetres thick. Testing may take place again starting on ██/██/20██, but all testing subjects must be terminated, regardless of transformation status.
Description: SCP-5241-A takes the idle appearance of a wooden marionette measuring approximately 2.3 meters tall, not including its strings, and has two long appendages that resemble arms which measure approximately 77 centimetres from shoulder to fingertip. Each arm splits into 4 opposable fingers, the longest of which measures 18 centimetres and the shortest of which measures 14 centimetres.
SCP-5241-A also has two leg-like appendages that extend from its hips. Each leg has a distinct painted line down its full length and they each end in a point. Legs seem non-functional as all movement is done with SCP-5241's strings.
SCP-5421-A is painted with, what appears to be, a latex based tan paint with accents of various colours. The specimen is also wearing a play theatre mask, similar in appearance to that of a cheap, crafts store mask. The mask is painted white, with the same latex based paint as the rest of the body. There is slight discoloration around the eye holes and edges of the mask that can be linked with age.
When a subject interacts verbally with SCP-5241-A without being prompted, SCP-5241-A will change the appearance of its mask to be a perfect replica of the subject's face, and the subject will be converted into an instance of SCP-5241-1. SCP-5241 will then proceed to mimic all of SCP-5241-1’s actions, verbal and non-verbal. It has also been found to share the same thoughts as SCP-5241-1. After an approximately 72 hour period, SCP-5241-A will turn into a separate instance of SCP-5241 called SCP-5241-B, falling under a hive mind mentality. The cycle is then subject to repeat itself if proper re-containment measure are not met.
When SCP-5241 is done interacting with SCP-5241-1, its face will return to its original state, but instead of showing its usual smile, it will now wear a distinct frown. Regardless of the location of SCP-5241-1 when it converts into SCP-5241, SCP-5241-A will be aware of the change and its mask will change back to a smiling state. It is worth noting that, while SCP-5251-A awaits the transformation of SCP-5241-1 into SCP-5241-B, it will not interact with any subjects.
Addendum 1.0: Discovery
SCP-5241 was originally discovered by a married couple in a junkyard outside of ███████, South Dakota. A call was intercepted at 21:37 on ██/██/19██ by a task force in the area. SCP-5241 was found in the home of the couple, standing over both of them. When confronted by MTF, 5241 responded with childish laughter before collapsing to the floor in an inanimate pile. The MTF agent that initiated conversation with SCP-5241 reported feeling 'light headed' for several hours after initial contact.
Interviewed: SCP-5241
Interviewer: D-████
<Begin Log Alpha>Interviewer: (Targeted towards entrance to the ‘Play Zone’) Hey! What the hell is happening? I want answers! I demand you tell me w-
Dr. Light: (Over containment cell intercom) All of your questions will be answered after you follow the simple instructions we gave you. If you wish to disrespect the work of this facility, then we can send you right back to death row sir.
Interviewer: (Turns slowly towards the specimen) Hello. W-what are you? (Takes a few cautious steps forward) Do you know why I'm here?
SCP-5241: (Springs to life as D-████ approaches him. A strange party music begins to emanate from SCP-5241) Ah! A fellow party goer. What brings you to my corner of the room my friend? (Reaches out towards D-████)Interviewer: Party goer? What does that mean? (Fumbles with the list in his hand) Uhm, where do you come from?
SCP-5241: Where do I come from? Silly child, I was made right here! And it is quite rude to ask those sorts of questions. Now, why not return to the party? Unless you would like a gift (Procures a small box from behind its back)
Dr. Light: (Over containment cell intercom) D-████, I must insist that you accept the specimens gift if you want to get out of this and go home.Interviewer: (Reaches and takes SCP-5241’s present and opens it) It’s… It’s a mask? Like his! W-what the hell is happening? Why do you say I have to put it on?
Dr. Light: (Over containment cell intercom) Who is telling you to put it on? Nobody is talking except you. Describe what is happening or I'll have no choice but to send you back to your cell.
Interviewer: No, I understand now. You’re right ma’am. This is the only way to get out of here. Everything makes so much sense now. (Screams as he puts on the mask)
SCP-5241: Why don't you join the party, Sophia?
<End Log Alpha>
Addendum 2.0: SCP-5241's gift
In the Alpha log, SCP-5241 presented the D Class personnel with a wrapped gift, seemingly from midair. When asked where the gift came from, SCP-5241 feigned surprise, acting as if it was unaware that it had created the gift. When the gift box is closed and reopened it produces a variety of objects, most intended for children.
The, possibly, complete list of items the box can produce are as follows: A plastic mask, arcade token with no brand, latex based balloons, confetti poppers, a piece of paper with a note written in an untranslatable language (When progress is made in the translation process, the translated portion of the note changes), a photo of SCP-5241 with a large group of children that all wear SCP-5241's mask.
Although the gift box originally produced a copy of 5241's mask, it seems unable to produce this mask again. When security forces arrived on-site to test Alpha, they found that the mask had fused to the wearers face down to a molecular level.
Interviewer: D-9052
Interviewed: SCP-5241
<Begin Log Beta>
D-9052: Why do I have to wear this damned suit huh? Why can't I just wear the normal jumpsuit!
SCP-5241: Ah! So another friend has come to join me in my little corner. I remember when hundreds would join me everyday. Oh how the music would roar. I miss those days.
D-9052: Right, right. Who's controlling y-
SCP-5241: (Specimens face falls backwards , out of view of cameras and D-9052. The sound of splitting wood fills the room. When SCP-5241 raises its head, its face has become an exact copy of D-9052's)
D-9052 and SCP-5241 in perfect unison: Woah, woah, woah! What the fuck is happening! Let me out of here! (D-9052 begins to slam his fists against the chamber door) It's copying me!
SCP-5241: Welcome to the party. Why not stay a while?
Dr. Light: (Over containment cell intercom) D-9052, you are allowed to leave. Follow security to your new holding cell. You shall remain there until further notice.
<End Log Beta>
