Cassandra Clare 
Infernal Devices 2: Clockwork Prince 

True love is shrouded in secrets and lies in the #1 New York Times bestselling second book of the Infernal Devices trilogy, a prequel series to The Mortal Instruments. The Mortal Instruments: City of Bones is in cinemas August 2013.Love and lies can can corrupt even the purest heart… Second in the bestselling prequel series to The Mortal Instruments, set in Victorian London. Tessa Gray find her heart drawn more and more to Jem, while her longing for Will, despite his dark moods, continues to unsettle her. Read all the sensational books in The Shadowhunter Chronicles: The Mortal Instruments, The Infernal Devices, Tales from the Shadowhunter Academy, The Bane Chronicles, The Dark Artifices, The Last Hours and The Shadowhunter’s Codex.