Suddenly able to see demons and the Shadowhunters who are dedicated to returning them to their own dimension, fifteen-year-old Clary Fray is drawn into this bizzare world when her mother disappears and Clary herself is almost killed by a monster.

A first entry in the new Dark Artifices series, a sequel to the internationally best-selling Mortal Instruments series, finds an adult Emma resolving to avenge the deaths of her parents and foil a demonic plot while her parabatai, Julian, struggles to bond with a returned brother who does not recognize him.