The Infernal Devices: Clockwork Princess (Volume 3)

The threat of Mortmain's Infernal Devices looms as the Shadowhunters race to work out a way to counteract the mechanical monsters. Meanwhile, plans for Tessa's marriage to Jem are underway, despite her fianc?'s failing health and the unresolved feelings between her and Will. When Tessa is captured, Will must leave his comrade behind to save the woman they both love... But with the final missing piece--Tessa herself--in Mortmain's possession, can anything stop his plot for revenge?

Cassandra Clare vaulted onto the publishing scene with her first YA novel, City of Bones, and has published three other bestselling novels in The Mortal Instruments series. First published in August of 2010, Clockwork Angel marked the first installment of Cassandra's The Infernal Devices trilogy and debuted at #1 on the New York Times list.