Trapped in a haunted castle with my immortal enemy . . .

The Duke of the Damned is dead. When my coven is blamed for his murder, I'm desperate to clear their name before my sisters are arrested and I lose the only family I've ever known. But I only have one week to find the culprit, and the new heir to the duchy is none other than Detective Liam Rorick, my enigmatic ex-partner and archenemy.

It doesn't matter if Rorick is a competent investigator. He's the most cantankerous vampire I've ever had the displeasure of knowing. There's a reason I swore I'd never work with him again.

And yet that's exactly what I have to do.

Now we're trapped together in the malevolent castle he's just inherited, trading insults and fighting magical monsters to survive. I want nothing more than to go back to pretending he doesn't exist . . . but Rorick protects me like I'm precious and keeps looking at me like he regrets our past.

With each close call and each revealed clue, it becomes harder to fight our undeniable connection. But even the castle's hungriest creatures aren't as frightening as opening my heart to the one man capable of devouring it whole.

Contains mature themes.