Aila Vex's blood runs black.

She's lived her entire life deep within the Carpathian Mountains of Transylvania, a captive of the Voroneț Monastery. Working as their personal Exorcist, Aila spends her nights hunting for the answers to her mysterious bloodline and killing any demons that stand in her way.

But after the Monastery is attacked and everything Aila knows turns to ruins, the tables are turned and the hunter becomes the hunted. Kidnaped by a group called The Black Order by the stubborn - but noble - Damien Hawthorne,  Aila will need to resist the dark urges of her blood and aid the Order in their fight against her kind: the demons.

War looms on the horizon, one that will take all of Aila's strength to fight as she attempts to find her true place in the world. Torn between siding with Damien and his Darklings, or letting loose the darkness flowing through her veins, Aila knows it's only a matter of time before the demons come to claim her as their own.