A misdirected email invitation to a Halloween party is an opportunity for Callie Jones to shed her inhibitions and become a liberated woman looking for a night of wild, hot sex.

Kean Phelan, alpha male, expected a night of fun and fornication for himself and the males of his pack. A full moon brings out the animal for a night of rutting, which is why he's invited "escorts" to entertain the males.

What happens when Kean realizes Callie isn't one of his escorts…but his mate? Once the pack discovers an outsider amongst them, can he protect her, fight for her, and ultimately claim her?