From #1 New York Times bestseller Cassandra Clare and award-winner Wesley Chu comes the first book in a new series that follows High Warlock Magnus Bane and Alec Lightwood as they tour the world after the Mortal War. The Red Scrolls of Magic is a Shadowhunters novel.

All Magnus Bane wanted was a vacation—a lavish trip across Europe with Alec Lightwood, the Shadowhunter who against all odds is finally his boyfriend. But as soon as the pair settles in Paris, an old friend arrives with news about a demon-worshipping cult called the Crimson Hand that is bent on causing chaos around the world. A cult that was apparently founded by Magnus himself. Years ago. As a joke.

Now Magnus and Alec must race across Europe to track down the Crimson Hand and its elusive new leader before the cult can cause any more damage. As if it wasn’t bad enough that their romantic getaway has been sidetracked, demons are now dogging their every step, and it is becoming harder to tell friend from foe. As their quest for answers becomes increasingly dire, Magnus and Alec will have to trust each other more than ever—even if it means revealing the secrets they’ve both been keeping.

The New York Times bestselling Mortal Instruments continues—and so do the thrills and danger for Jace, Clary, and Simon. What price is too high to pay, even for love? When Jace and Clary meet again, Clary is horrified to discover that the demon Lilith's magic has bound her beloved Jace together with her evil brother Sebastian, and that Jace has become a servant of evil. The Clave is out to destroy Sebastian, but there is no way to harm one boy without destroying the other. As Alec, Magnus, Simon, and Isabelle wheedle and bargain with Seelies, demons, and the merciless Iron Sisters to try to save Jace, Clary plays a dangerous game of her own. The price of losing is not just her own life, but Jace's soul. She's willing to do anything for Jace, but can she still trust him? Or is he truly lost?

Love. Blood. Betrayal. Revenge. Darkness threatens to claim the Shadowhunters in the harrowing fifth book of the Mortal Instruments series.