Hidden by Rebecca Royce

Lost, groggy, and utterly devastated, MacKenzie Harper woke in the back of a truck with a kind man giving her a ride to safety. Her memory fuzzy, her senses on high alert, and her world teetering precariously on chaos, she has no idea who to trust but her nose says she can trust him.
When her savior delivers her to Ranier, Preston, Jarret, and Anton Lejeune, Kenzie recognizes them as the sons of the most famous werewolf family in Louisiana. They have to hide her, because Kenzie did the forbidden—she shifted. Werewolves are forbidden from shifting due to the Accords, and she’s always been good at playing human. So why did she shift?
That’s a question she’d like answered, but there’s more to Kenzie than even she knows and being around the Lejeune brothers rouses old instincts and desperate desires that will pull her four mates to her and together, they’ll face every challenge coming for them—even the ones they can’t see.