Borg Cranial Assimilation Implant

A coin-sized, metal-like implant embedded along the intruder's skull where flesh meets bone, its pitted alloy faceplate interrupted by microfilaments and a faintly glowing fiber optic. Thin conduits snake beneath scalp tissue to ocular ports and neck musculature; the implant emits a subtle mechanical hum and catches engineering lights with a cold, industrial gleam. Crew members recoil as the device becomes visible — Geordi's breath tightens, Picard and Worf accelerate toward the breach — the implant reads as unmistakably synthetic and hostile, a tactile proof of cybernetic alteration.