House Rules (Chicagoland Vampires)

Seventh in the New York Times bestselling series about “wonderfully compelling reluctant vampire heroine”* Merit and the paranormal Chicago underworld.
 
In a city full of vampires, trouble never sleeps.
 
At age twenty-seven, Merit became a sword-wielding vampire. Since then, she’s become the protector of her House, watched Chicago nearly burn to the ground, and seen her Master fall and rise. Now she’ll see her mettle—and her metal—tested like never before.
 
It starts when two Rogues vanish without a trace. Someone is targeting Chicago’s vampires, and anyone could be next. With their House in peril, Merit and her Master, Ethan Sullivan, must race to stop the disappearances. But as they untangle a web of secret alliances and ancient evils, they realize their foe is more familiar, and more powerful, than they could have ever imagined.