In a time when Shadowhunters are barely winning the fight against the forces of darkness, one battle will change the course of history forever. Welcome to The Infernal Devices trilogy, a stunning and dangerous prequel to the New York Times bestselling Mortal Instruments series. The year is 1878. Searching for her missing brother, sixteen-year-old Tessa Gray descends into London's dark supernatural underworld and finds herself up against the Pandemonium Club, a secret organization of vampires, demons, warlocks, and humans. Equipped with a magical army of unstoppable clockwork demons, the Club is out to rule the British Empire, and only Tessa and her Shadowhunter allies can stop them....riends: James, whose fragile beauty hides a deadly secret, and blue-eyed Will, whose caustic wit and volatile moods keep everyone in his life at arm's length . . . everyone, that is, but Tessa. As their search draws them deep into the heart of an arcane plot that threatens to destroy the Shadowhunters, Tessa realizes that she may need to choose between saving her brother and helping her new friends save the world. . . . and that love may be the most dangerous magic of all.