Item #: SCP-XXXX Object Class: Keter Special Containment Procedures: SCP-XXXX is to be held in a modified sensory-deprivation unit at Site-██. Chamber illumination must remain at 0 lux. Containment walls are treated with Vantablack-3 to mitigate the formation of Pareidolia-based manifestations. Personnel entering the cell for maintenance or feeding are strictly prohibited from carrying any printed media, wearing patterned "hazmat" gear, or utilizing high-intensity flashlights. SCP-XXXX is to remain fitted with a high-density, light-proof ocular mask at all times. If a manifestation occurs, Site Security is authorized to use aerosolized sedative [REDACTED] to induce immediate unconsciousness. Description: SCP-XXXX is a male, age 30, formerly identified as █████ ██████. Subject presents with a localized reality-bending anomaly triggered by a severe case of Charles Bonnet Syndrome (CBS). While CBS typically causes non-physical "phantom" visions in the blind, SCP-9211’s neural output forces these hallucinations to physically manifest in 3D space. These instances, designated SCP-XXXX-1, are solid, possess mass, and—depending on the subject's stress levels—can be highly interactive. The fills are not limited to what the subject currently sees; his brain will "fill in the gaps" using memories, textures, or even background radiation if left in total sensory voids. Addendum XXXX.A: Incident Log ██-01 Context: Subject caught a 0.5-second glimpse of a history text during a transfer. Result: Immediate manifestation of a human male (SCP-XXXX-1a) resembling Gaius Julius Caesar. Instance appeared in a state of "active expiration," hemorrhaging from 23 puncture wounds. Site-██ janitorial staff spent four hours clearing biological residue before the entity finally de-manifested upon subject sedation. Addendum XXXX.B: Observation Log (Lilliputian Event) During a sleep cycle on ██/██/20██, SCP-XXXX’s subconscious interpreted the wall's texture as a mass of people. Approximately 400-500 miniature humanoids (10-15cm tall) manifested. These instances were notably aggressive, attempting to strip the electrical wiring from the ceiling. One instance was captured for biopsy but dissolved into a grey, non-biological silt once the subject woke up. Addendum XXXX.C: Audio Log - Interview 04 Interviewer: Dr. ██████ Subject: SCP-XXXX [BEGIN LOG] Dr. ██████: You’re shaking, XXXX. We’ve given you the mask. You’re safe from the "images" here. SCP-XXXX: You don't get it. It’s not just the books anymore. My eyes are... they’re hungry. If they don't have a picture to look at, they start looking through the dark. Dr. ██████: (Writing sounds) Be specific. What are you seeing right now? SCP-XXXX: You. But not the "you" I saw when the lights were on. I’m seeing the gaps in you. There’s something tall standing right behind your chair, Doc. It’s got hands like smoke and it's... it's threading its fingers into your hair. Dr. ██████: (Silence for 3 seconds) There is no one behind me. The thermal sensors are flat. SCP-XXXX: It’s not a hallucination anymore. I just blinked. I felt the air in the room get colder when I did it. Look at your shadow, Doctor. Just look at your shadow. [Note: At 14:22, Dr. ██████’s shadow on the floor appeared to "detach" and stand upright independently. Dr. ██████ panicked and exited the room. Interview terminated.] [END LOG] Footnote 1: Post-incident audit suggests SCP-9211 is no longer just manifesting images, but is acting as a "lens" for entities existing in [DATA EXPUNGED].