Genius is a Star Whose Light (is Soon to Sink in Endless Night)

Sherlock had buried the past. Shut Serbia away in the attic of his mind palace. Muddy footprints at a heinous crime scene, however, have led him right back to old enemies. And right back to captivity. For God's sake, Mycroft. (Loosely connected to my oneshot "Of Sweat, Sociopathy, Scars, and Secrets", but stands alone). First 3 chapters posted at once from AO3. Updates on Fridays.