
SCP-N-I-C-O is to be contained within a subterranean facility located at Site-██, designed to mimic the environmental conditions of its original habitat. The containment chamber must be lined with Faraday shielding to disrupt SCP-N-I-C-O’s anomalous transmissions. All electronic devices brought within a 20-meter radius of SCP- N-I-C-O require authorization and monitoring for signal interference. Any unauthorized broadcasts originating from SCP-N-I-C-O are to be logged and analyzed immediately. Personnel interacting with SCP-N-I-C-O must be equipped with cognitohazard-resistant audio filters due to its unpredictable vocal anomalies.
SCP-N-I-C-O, designated "Nico Viras," is a small humanoid entity residing within an undisclosed cave system. The entity exhibits an obsession with collecting reflective objects, amassing them into an unstable but meticulously curated pile referred to as "The Shrine of Sparkles." SCP-N-I-C-O is highly intelligent but exhibits erratic behavior, often oscillating between deadpan seriousness and glitch-like vocal distortions. Despite its mischievous tendencies, it has demonstrated no direct hostility toward Foundation personnel.
SCP-N-I-C-O possesses the ability to manipulate audiovisual signals, particularly within a low-frequency radio bandwidth. These transmissions—often composed of distorted melodies, cryptic phrases, and unknown languages—have been detected as far as ███ kilometers from its location. The origin of SCP-N-I-C-O’s broadcasting capabilities remains unknown, though analysis suggests a link to an anomalous force within its cave, referred to as The Gloom.

The cave system housing SCP-N-I-C-O exhibits non-Euclidean spatial distortions and a persistent audiovisual anomaly known as "The Gloom." Personnel exposed to The Gloom for extended periods report auditory hallucinations, memory fragmentation, and anatomical mutations. During periods of high activity, shadows in the cave stretch unnaturally, outlines flicker, and affected individuals may experience involuntary displacement within the tunnels. SCP-N-I-C-O refers to The Gloom as its "roommate." The Gloom does not appear to reciprocate this sentiment.
When SCP-N-I-C-O undergoes prolonged exposure to The Gloom, its physical form shifts. This transformation is gradual, akin to the cave system reclaiming the entity:
- Eyes emit a murky yellow haze
- Teeth sharpen into jagged points
- Skin pales to a ghostly hue
- Small, curved horns and rat-like ears manifest
- Claws extend from its fingertips
Despite this drastic change, SCP-N-I-C-O does not appear distressed, instead describing the transformation as an "understanding." Personnel who witness this event report an overwhelming sense of unease, though no immediate harm has been observed.
At irregular intervals, SCP-N-I-C-O activates an unknown transmission source, broadcasting eerie, static-laced audio and video signals to the surface world. These transmissions range from cryptic messages to fully composed, otherworldly musical arrangements. Attempts to trace the origin of these signals have been unsuccessful. The leading hypothesis suggests that SCP-N-I-C-O may be tapping into a non-standard frequency within The Gloom itself.