clockwork princess

Tessa Gray should be happy — aren’t all brides happy? Yet as she prepares for her wedding to Jem Carstairs, a net of shadows begins to tighten around the Shadowhunters of the London Institute. A new demon appears, one linked by blood and secrecy to the Magister, the man who plans to use his army of pitiless automatons, the Infernal Devices, to destroy the Shadowhunters. He needs only one last item to complete his plan of destruction.