Faerie ring series

"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...