Danger and betrayal, secrets and enchantment in the breathtaking conclusion to the No. 1 New York Times bestselling Infernal Devices trilogy, a prequel series to The Mortal Instruments. The Mortal Instruments: City of Bones is in cinemas August 2013. If the only way to save the world was to destroy what you loved most, would you do it? The clock is ticking. Everyone must choose. Passion. Power. Secrets. Enchantment. Danger closes in around the Shadowhunters in the third and final instalment of the bestselling Infernal Devices trilogy.