Danger and betrayal....

Secrets and enchantment....

The third and final book in the best-selling Infernal Devices trilogy about the Shadowhunters.

A net of shadows begins to tighten around the Shadowhunters of the London Institute. Mortmain needs one last item to complete his plan. He needs Tessa. But Jem and Will, the boys who lay equal claim to Tessa's heart, will do anything to save her.