Brick by Elaine Barris

Brick, Alpha of the Cross Plains Pack, is on a mission to locate and destroy the original and last remaining copy of the infamous book created by The Mankind Defense, which contains information on the best ways to kill shifters, among other secrets.
With his beta Duke at his side, Brick travels across the country in a race against the evil members of TMD to find the book, with one goal in mind—eliminating the threat to their species.
Well, that, and bedding any willing female, with no intention of ever settling down.
Brick believes he’s somehow managed to escape the Hunger, which would shackle him to a mate. But then he meets Ivy, and the world as he knows it is dramatically transformed.
Which will win—the fight against his desire, or the legendary Hunger? A Wolf’s Hunger. It can’t be stopped.