Karen Chance 
Death’s Mistress 

Dorina Basarab is a dhampir — half-human, half-vampire — and the only way she can stay sane is by unleashing her sometimes uncontrollable rage on demons and vampires that deserve killing.After the fortunate demise of her insane uncle Dracula, Dory is back home in Brooklyn, hoping that life will calm down for a while. But then two visitors arrive: her friend Claire, asking for Dory’s help in finding a magical Fey relic, and the gorgeous master vampire Louis-Cesare, desperate to find his former mistress, a vampire named Christine.Dory and Louis-Cesare soon discover their problems may be connected: the same master vampire Christine is bound to is also rumored to be in possession of the relic. But they soon realize there’s more at stake when Christine’s master turns up dead. Someone is killing vampire Senate members, and if Dory and Louis-Cesare can’t stop the murderer, they may be next . . .