Matthew Callahan has spent seven years struggling against the insatiable hunger for blood consuming him. Unable to stop the vampire inside from preying on humans, he keeps himself confined to a lonely existence. Everything changes the night he is lured into a trap and taken prisoner by High Lord General Tarrick—a seductive incubus who feeds off sexual energy. Forced into the middle of a war between vampires and incubi, Matthew is used as a weapon against his own kind. Although he's desperate for freedom, he is unable to deny the burning desire drawing him to the incubus general he now calls Master. This book is intended for mature audiences.

I’ve already mentally prepared myself to kill the screaming, murderous monster in the cage outside our camp. I’m used to it. It’s what I do here. Kill monsters and other people. And this monster, Seraph, is particularly unstable—has been since the moment he arrived from Collector Mary’s monster menagerie to the west, where the military stashed him away. He’s in pain. I can see it. But he’s not a mindless beast. Not like some of the others think. When I start guarding him in his cage every night, I begin to see the person beneath the agony that tortures his every waking moment. I begin to see who Seraph could have been if he hadn’t been twisted into this monstrous creature. I realise that I wouldn’t be able to bring myself to kill him, even for his own sake, but it doesn’t matter anyway. He’s already dying, and there’s nothing I can do to stop it. Not even when new visitors at our raider camp bring with them secrets about Seraph. Secrets the military has tried to hide. Secrets that reveal the true extent of the horror he’s been put through. And now… Now, I will kill anyone who tries to hurt him again.

When I—along with my best friend and his big purple monster boyfriend—come across a fortress-like raider camp while journeying across the monster-infested Wastes, we stop to deliver a message. Somehow, that simple pit stop turns into a seemingly impossible quest to get this camp’s missing leader out of the prison where he’s being held and forced to fight monsters and other humans. And I know exactly where it is, because I’ve been there. Problem is, I’m making this journey with the prickliest and most arrogant guy I’ve ever met, who seems to immediately hate me on sight. Oh, and he’s also half monster. So there’s that. And he’s in love with a raider who definitely does not love him back, and he seems determined to take it out on me. So there’s also that. But I’m not going to rise to his childish insults and barbed words. I’m not. I’m also going to try very hard to ignore how mindnumbingly beautiful he is, even when he’s scowling at me. But the longer we’re out here together, the more I learn about my prickly half monster companion Moth. I realise there’s a reason he’s so closed off and angry. There’s a reason he hates everyone. There are secrets he’s been keeping, and when I find out what they are, I want to do everything in my power to help him—even though he’s telling me he can’t be helped. Moth is Book Five of the Monstrous series, a post-apocalyptic m/m fantasy series that features monsters and human men falling in love. It is best to read the series in order. Warning: This m/m love story contains explicit sexual content and is not suitable for young readers. It also contains graphic depictions of death and violence.