Book 1

A prequel to Cassandra Clare's 'Mortal Instruments' series, 'The Infernal Devices: Clockwork Angel' is the story of Tessa Gray, a sixteen-year-old American girl travelling alone to Victorian London who runs afoul of the city's sordid supernatural underworld. Rescued by the Shadowhunters of the London Institute, Tessa quickly finds herself caught up in an intrigue that may very well destroy her new friends - including the two enigmatic young men, Jem and Will, who have taken her under their wing . . .

Book 2

The second instalment of The Infernal Devices follows Tessa and her two dashing Shadowhunter companions, Will and Jem, as they travel throughout Victorian England seeking the full truth behind the Magister's sinister plot. Tessa feels herself growing closer to Jem, but Will continues to infuriate her - moody and aloof, she can't tell what he feels for her . . . or quite what she feels for him.

Book 3

A net of shadows tightens around the Shadowhunters of the London Institute. Mortmain plans to use his Infernal Devices, an army of pitiless automatons, to destroy them. He needs only one last item to complete his plan: he needs Tessa Gray.

When Mortmain abducts Tessa, the boys who lay equal claim to her heart, Jem and Will, will do anything to save her. For though Tessa and Jem are now engaged, Will is as much in love with her as ever.

Danger and betrayal, secrets and enchantment, and the tangled threads of love and loss intertwine as the Shadowhunters are pushed to the very brink of destruction in this breathtaking conclusion to the Infernal Devices trilogy.