This title is fifth in the international bestselling paranormal thriller series "The Mortal Instruments". This is the follow-up to the international number one bestseller "City of Fallen Angels". "The Mortal Instruments" series has over one million books in print.

It has been on the New York Times bestseller list for six months straight. The books have been translated into 19 languages and have also appeared on bestseller lists in Germany, Ireland, Australia, New Zealand and Canada. Film rights optioned, with Lily Collins and Jamie Campbell Bower cast as leads Clary and Jace.