Clary Fair is about to go straight to the heart of Darkness. By starting a dangerous game, she challenges heaven and hell to save Jace, whom she loves more than life itself. Jace is now a loyal servant of Darkness and is inseparably bound to Sebastian, who intends to destroy the Shadowhunters. Only Clary and Jace’s family believe he can be saved. The future of the Shadowhunters depends on the success of this mission. Clary is ready to do anything for Jace—even if the price she has to pay for love turns out to be too high.