Clue In ~BBC Sherlock Fan Fiction~

Most dads are loving.
Others abusive.
But only one can be a mass serial killer and as fate would have it, it's her father.

Beatrice's only fear in this world is to be caught by HIM; she wants to get as far away from HIM as possible. Fortunately for her, Beatrice is caught by Detective Inspector Greg Lestrade and brought to the attention of Sherlock Holmes and Dr. John Watson. They keep her under raps and out of sight in the safety of flat 221B on Baker Street. Beatrice and Sherlock start to redefine the definition of father and daughter as their relationship grows, both get what they have always wanted: family love.
But things quickly turn for the worst when her HE starts honing in on Beatrice and her new found family. And if he finally catches her, well, best to stay optimistic.