Hidden high above the mortal world, Domus Academy is a secret sanctuary for cambions—the half-human, half-demon children despised by every realm. For Cassia, the academy has always been her home…and her prison.

Born with wings and a past shrouded in secrecy, Cassia has spent her life under the protection of the Elders, isolated from other students and haunted by dreams she can’t explain. When she’s finally thrust into her final year among her peers, she’s determined to prove she belongs—even if that means facing the academy’s fiercest students and their dangerous magic.

But when an intruder breaches Domus and her caretaker is murdered, Cassia’s world shatters. A sacred book containing the names and powers of every cambion is stolen—and the killer may be closer than anyone dares to admit. To uncover the truth, Cassia must navigate deadly rivalries, forbidden alliances, and a mystery that reaches across realms. Every secret she unearths pulls her deeper into a web of betrayal, revealing that the shadows surrounding her birth may hold the key to saving—or destroying—the academy itself.

Wings. Blades. Secrets. Betrayal.

At Domus Academy, the greatest danger isn’t the monsters outside the walls—it’s the ones hiding within.

*Please note that this book was previously published in 2019 as Demonspawn Academy: Trial One.