The Faerie Ring, Hamilton Kiki

The year is 1871, and Tiki has been making a home for herself and her family of orphans in a deserted hideaway adjoining Charing Cross Station in central London. They survive by picking pockets. One December night, Tiki steals a ring and sets off a chain of events that could lead to all-out war with the Fey. For the ring belongs to Queen Victoria, and it binds the rulers of England and the realm of Faerie to peace. With the ring missing, a rebel group of faeries hopes to break the treaty with dark magic and blood Tikis blood.

Unbeknownst to Tiki, she is being watched and protected by Rieker, a fellow thief who suspects she is involved in the disappearance of the ring. Rieker has secrets of his own, and Tiki is not all that she appears to be. Her very existence haunts Prince Leopold, the Queens son, who is driven to know more about the mysterious mark that encircles her wrist.