Developed A SCP Foundation Game

+Check out the other novel by clicking my profile.

+My P'atreon:
https://www.Patreon.com/Sokdavid

+My Facebook Page :
https://www.facebook.com/P.S.David123/ Or Sokdavid Gaming

+My X ( Formerly Twitter ):
https://x.com/PhornSokdavid

+My YT Channel:
https://www.youtube.com/channel/UCA_o7H0XZmHnnX0UlvGP4Yg Or Sokdavid Gaming

+My Webnovel:
https://www.webnovel.com/profile/4306272971 or Sokdavid

+My 抖阴社区:
/user/Sokdavid123

+My Archive of Our Own:
https://archiveofourown.org/users/Sokdavid

-----------

Thank You, "Alberto Catalan", "Jordan Hayes" and "Elder_Entity", For Becoming A Member On My Pa'treon. The Emperor Protect.

-----------

The room size is small. On the left is the card-swiping metal door, and behind it should be the Containment Chamber of SCP-513.

"Can a Level 3 keycard get in?" Brit was pondering this when Kiwo's voice came beside him: "There are files here."

Looking back, he found that Kiwo was standing next to the right shelf, holding a file, and the group surrounded her. As expected, the file contained detailed information on SCP-513.

[SCP-513, "A Cowbell"]

[Object Class: Euclid]

[Description: Physically, SCP-513 is an unremarkable, rusty cowbell. No marks or engravings are visible on its surface due to the substantial corrosion. Attempts to remove the rust chemically or mechanically have been unsuccessful.

SCP-513 was recovered by Agent ██████ while carrying out Containment Reestablishment Procedure Mu at Site-██. SCP-513's clapper was firmly held in place by several strips of duct tape. A single scrap of paper was found along with SCP-513 (see Addendum).

Any noise produced by SCP-513 immediately induces strong anxiety in all sentient beings who hear it, regardless of their previous mental status. Exposure victims report feelings of being watched by an unseen entity and present elevated heart rates and blood pressure. Roughly one hour after exposure, victims begin to catch glimpses of SCP-513-1 when opening doors, walking past mirrors, turning their heads, or performing any other actions that result in a sudden change in visual perception. Upon being sighted, SCP-513-1 reportedly turns away and runs out of view before disappearing without a trace. Questioning of bystanders indicates that SCP-513-1 is invisible to those who have not been exposed to SCP-513.

Sightings of SCP-513-1 recur every 14 to 237 minutes. This "stalking" behavior inevitably causes extreme sleep deprivation, as victims are frequently disturbed by SCP-513-1's presence in their quarters. Victims can fall asleep before SCP-513-1's appearance and report being physically assaulted by it. Upon awakening, SCP-513-1 flees as usual (see Experiment Log 513). This sleep deprivation, along with the mental stress caused by SCP-513-1's behavior, invariably induces paranoia, aggression, hypervigilance, and depression. All test cases but one have ended with the test subject's suicide.

Descriptions of SCP-513-1's appearance are largely unreliable. Test subjects are unable to provide complete accounts of sightings due to their exhaustion, degraded mental health, and disruptive hypervigilance. However, all interrogations thus far indicate that SCP-513-1 is a tall, emaciated humanoid with abnormally large hands.]

The group quickly finished reading the file, and they were surprised.

"Is this a cowbell? It's so insane."