John Watson spends seven years at Hogwarts School of Witchcraft and Wizardry, where he meets the boy who will become the greatest man he'll ever know. Eventual John/Sherlock.
Crossover - Harry Potter & Sherlock - Rated: T - English - Romance/Mystery - Chapters: 8 - Words: 65,395 - Reviews: 753 - Favs: 2,593 - Follows: 458 - Updated: 3/13/2011 - Published: 1/27/2011 - John W. - Complete