The thrilling finale to the New York Times bestselling Harbinger series.
Danger, betrayal, and enticing forbidden love...
Trinity Marrow has lost the battle and her beloved Protector. Even with both demons and Wardens on her side, Trin may not win the war against the Harbinger.
Bringing Lucifer back to the world to fight the Harbinger is probably a really, really bad idea, but they’re out of options—and the world’s ultimate fallen angel is the only being powerful enough to impact the outcome.
As Trin and Zayne form a new and more dangerous bond and Lucifer unleashes Hell on earth, the apocalypse looms and the world teeters on the end of forever. Win or lose, one thing is certain—nothing will ever be the same.
"A swoony, supernatural smash that's impossible to put down!" —Abigail Johnson, author of Even If I Fall

A half human, half angel and her bonded gargoyle protector must work with demons to stop the apocalypse while avoiding falling in love. The Harbinger is coming… but who or what is it? All of humankind may fall if Trinity and Zayne can’t win the race against time as dark forces gather.
As tensions rise, they must stay close together and patrol the DC streets at night, seeking signs of the Harbinger, an entity that is killing Wardens and demons with no seeming rhyme or reason. Forbidden to be with each other, Zayne and Trinity fight their feelings and turn to unusual sources for help—the demon Roth and his cohorts. But as deaths pile up and they uncover a sinister plot involving the local high school and endangering someone dear to Zayne, Trin realizes she is being led - herded - played for some unknown end. As anger builds and feelings spiral out of control, it becomes clear that rage may be the ruin of them all.

Eighteen-year-old Trinity Marrow may be going blind, but she can see and communicate with ghosts and spirits. Her unique gift is part of a secret so dangerous that she’s been in hiding for years in an isolated compound fiercely guarded by Wardens—gargoyle shape-shifters who protect humankind from demons. If the demons discover the truth about Trinity, they’ll devour her, flesh and bone, to enhance their own powers.
When Wardens from another clan arrive with disturbing reports that something out there is killing both demons and Wardens, Trinity’s safe world implodes. Not the least because one of the outsiders is the most annoying and fascinating person she’s ever met. Zayne has secrets of his own that will upend her world yet again—but working together becomes imperative once demons breach the compound and Trinity’s secret comes to light. To save her family and maybe the world, she’ll have to put her trust in Zayne. But all bets are off as a supernatural war is unleashed…