The dossier appears as an obsidian-black leather folder with frost-etched silver clasps, its contents perpetually cold to the touch. Within, perfectly preserved papers spiral outward from a central ice-blue seal, their arrangement suggesting flight paths through the investigation's most crucial moments.

The dossier silently influences investigations by revealing or obscuring evidence based on the investigator's approach, much like a course revealing its secrets to those who read its subtle breaks and winds correctly.