Private investigator and reluctant magician Samantha Hain thought she'd earned a break after banishing Faust back to Hell. But when her vampire lover, Countess Carmilla Karnstein, is targeted by an ancient enemy, Sam finds herself caught in a deadly game of power, magic, and vengeance.

Dracula has risen, and with him, the ruthless Order of the Dragon seeks to reclaim their dark legacy. After a brutal attack on Castle Karnstein, Carmilla barely escapes-only to watch in horror as Sam is taken captive. Now, with time running out, Carmilla must forge unlikely alliances, embrace the full power of her vampiric heritage, and outwit one of history's most terrifying monsters.