Walker Books: All three books in the #1 "New York Times "bestselling Infernal Devices trilogy, are now available together in a collectible paperback boxed set. Passion. Power. Secrets. Enchantment. Enter the secret world of the Shadowhunters with this handsomely packaged boxed set that includes "Clockwork Angel," "Clockwork Prince," and "Clockwork Princess." The villainous Mortmain and his terrifying clockwork army are on the move to destroy the Shadowhunters. Can Tessa, Jem, and Will stop his infernal plot? This complete collectible set of three paperback volumes is a perfect gift for newcomers to the series and for loyal fans alike.