Sherlock Holmes has a sister he never knew about. Alebony Holmes became a criminal 20 years ago, changed her look and her name, and finally got caught by the government. Mycroft Holmes is the person who is sent in to interview her, but what will happen when he finds out that she is his lost sister?
Warning: May contain spoilers from end of season 2 and season 3 of Sherlock. Make sure you have seen all 3 seasons before reading.