(Y/N) (L/N) works for Mycroft Holmes and has for years, but when Mycroft's brother, Sherlock, fakes his suicide, Mycroft needs someone to take his place. He decides there is no one better than (Y/N) who has nearly identical abilities to his little brother, but is she up for the task of replacing the famous consulting detective? The answer to that question is for Sherlock to answer when he returns and tries to find out just who this woman is that has been replicating his life. {Mature Content}

He had spent centuries with only himself for company, he fed, tortured and killed that was his life and he liked it that way, until she came along and stirred something in him, something he couldn't and wouldn't accept. “If I were you I’d keep that stake sharp. Don’t expect anymore visits like this, next time I come I expect you to use that thing,” he told her pointing to the stake on the bed, and then he was gone.