Britney is coming to school as a sophmore. She soon is getting tired of having less friends. One day, she hears low music from the stage from the theater. She sees a boy wering a mask. She visits but doesn't know who he is. She'll have to find out who he is.

[Contains JohnLock] Mycroft and Sherlock Holmes. The two brilliant, emotionless, sociopathic brothers. But there's another Holmes. A female Holmes. Enter Avery Holmes - the brilliant, crazy sister - the Third Holmes.

John and Sherlock meet on the Hogwarts Express and become good friends. They are then split up by houses and John makes Friends with The Marauders. They don't like Sherlock. Meanwhile, students are dying and Sherlock is determined to solve the case. BBC sherlock cross over with Harry Potter. TeenLock. I do not own Sherlock or Harry Potter! IT'S COMPLETED!! There will be a book 2!