Title: Sanguineous Serendipity 
Universe: BBC Sherlock
Rating: Explicit
Characters/Pairings: Sherlock Holmes/John Watson
Word Count: 35K

Summary: AU. Vampire Sherlock meets a dying John in a field hospital in Afghanistan and gives him a whole new life.

Tags: vampires, gnederfluid sherlock holmes, origin story, soldier john watson, blood drinking, cross-dressing, transphobic behavior warning, london, lots of talking, hurt/comfort, smut, happy ending.