Eurus tells Sherlock where Victor Trevor, his childhood playmate, died. He drowned inside a well, unfound and alone, as Sherlock wasn't there to save him. It is the same place she's chained up John Watson. A canon-compliant one-shot, based on a scene in The Final Problem.
Rated: T - English - Angst/Hurt/Comfort - Chapters: 1 - Words: 3,248 - Favs: 6 - Published: 8/18 - Sherlock H., John W., DI Lestrade, Euros H. - Complete