Seventeen-year-old Seraphine Azariel was born of darkness, her bloodline cursed and whispered about in every realm. As the daughter of Lucifer himself, she was meant to command legions, harvest souls, and rain fire upon the mortal world. But Seraphine made one fatal mistake—she chose mercy over madness. And for that, she was banished.
Now hiding among mortals at Astraeum Academy, a prestigious school for supernatural elites, Seraphine is forced to masquerade as just another gifted student. Shadow magic flickers beneath her skin, a sigil at her throat branding her the heir of Hell. She just wants to graduate quietly and maybe not explode anyone this semester.
Too bad the universe is messy. And dramatic. And enjoys chaos.
Enter Alaric Vale, Heaven’s golden boy. Celestial blood, killer jawline, and enough repressed emotion to power the sun. He’s the top student in Lux House, trained since birth to destroy anything marked by darkness. So when he’s sent to Astraeum to hunt the hellborn threat, the last thing he expects is to be rooming with her.
Enter Damien Florez. Vampire Prince and next in line to throne. Slapped by Seraphine when he sees she's his mate. He vows to protect her but doesn't like that she has another mate.
They’re opposites in every way.
He glows. He feeds. She broods.
He heals. He hates. She hexes.
He’s sworn to kill her. He's her mate. She might already love them a little bit.
But when their powers unexpectedly bond, awakening the mythical Umbra Blade—a divine-demonic weapon split in three—the lines between duty and desire blur fast. Especially when they uncover a growing threat: The Fallen Order, a rogue alliance of angels and demons hellbent on tearing the realms apart.
Seraphine along with Finn and Alaric must face prophecies, betrayals, and ancient enemies, all while navigating high school drama with deadly consequences. Because the apocalypse doesn’t wait for exams to finish—and sometimes, the fate of the world depends on how well you can flirt with your enemy during combat training.