From the New York Times bestselling author of The Program comes a thrilling new novel about the lust and lure of darkness. Amelia Cardone has spent her entire life under the guardianship of the Building, a cult of believers who made a pact with her father—the Devil. In exchange for protecting Satan’s child, the Building’s leader was promised untold power after Amelia completes the ceremony on her twenty-third birthday. A ceremony that will permanently raise the Devil from the depths of Hell. But the half-breed child of Satan has power of her own . . . and a secret that threatens to destroy them all. Betrothed since birth, Amelia defied the Building’s prophecy by marking another as her mate when she was a child. The boy—long-thought dead—has grown in captivity, and has now returned to kill the girl who cursed him. But, bearing her mark, Jonas Wells finds himself unable to harm her. The passion that ignites between them will bring forth the wrath of everyone in Amelia’s life, including her soulless half-brother (the only person she’s ever truly trusted), and a demon who is determined to make Amelia his own. Amelia knows that to survive she’ll either have to kill Jonas, or go against the Building, her father’s pact, and everything she was brought up to believe. In the end, her only way out might be to embrace the demon she was meant to become—and face the Devil’s consequences.