When the Past Returns - BBC Sherlock Fanfic

Sherlock thought he had put his past behind him, that was until an unexpected client walks into 221b Baker Street bringing his past with them. Penelope Morris shines a light on Sherlock's secrets but she had plenty of secrets of her own. Will she aid Sherlock Holmes and John Watson in their hunt for Moriarty? Or will she just put them in more danger?

I do not own any characters from the show 'Sherlock' or any scenes that are familiar with those in the show, they belong to their respectful owner. Any original characters or scenarios are of my own creation.