The prequel trilogy to the internationally bestselling Mortal Instruments Series, The Infernal Devices is set in Victorian London where Shadowhunters are barely winning against the forces of evil. American Tessa Gray is thrown into the midst of a war between the Shadowhunters and the evil Magister, who will stop at nothing to claim Tessa's hidden powers - the ability to transform into another person.

Latest book from The Infernal Devices

Clockwork Princess

Book #3

Danger, betrayal, and enchantment abound in the “exhilarating” (Booklist) conclusion to the #1 New York Times bestselling Infernal Devices trilogy—now with a gorgeous new cover, a new foreword, and exclusive bonus content! Clockwork Princess is a Shadowhunters novel.

THE INFERNAL DEVICES WILL NEVER STOP COMING

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

Charlotte Branwell, head of the London Institute, is desperate to find Mortmain before he strikes. But when Mortmain abducts Tessa, the boys who lay equal claim to her heart, Will and Jem, will do anything to save her. As those who love Tessa rally to rescue her from Mortmain’s clutches, Tessa realizes that the only person who can save her is herself. But can a single girl, even...
LEARN MORE ABOUT THIS BOOK

Don't Miss These Previous Books in the Series!

Also Available

About the Author

Cassandra Clare
Photo by Kelly Campbell copyright © Simon & Schuster, inc.

Cassandra Clare

Cassandra Clare is the author of the #1 New York Times and USA TODAY bestselling Lady Midnight, as well as the internationally bestselling Mortal Instruments series and Infernal Devices trilogy. She is the coauthor of The Bane Chronicles with Sarah Rees Brennan and Maureen Johnson and Tales from the Shadowhunter Academy with Sarah Rees Brennan, Maureen Johnson, and Robin Wasserman, as well as The Shadowhunter’s Codex, which she cowrote with her husband, Joshua Lewis. Her books have more than 50 million copies in print worldwide and have been translated into more than thirty-five languages, a feature film, and a TV show, Shadowhunters, currently airing on Freeform. Cassandra lives in western Massachusetts. Visit her at CassandraClare.com. Learn more about the world of the Shadowhunters at Shadowhunters.com.

BECOME A FAN

Video

Explore

CONNECT WITH US