The Unbound Moon by May Dawson

Every step away from Stone King and his magnetic brothers is a brutal blow to my heart. But I have to protect my son and my younger siblings, who risked everything to rescue me.
But as dangerous as King territory was, far worse dangers lurk ahead of us on the road trip from hell. Our goal is to start a new life in California, but we’re dogged by shifters and vampires who are obsessed with my so-called unnatural beauty.
On the run, secrets are revealed. I may not be able to bear the discovery of who betrayed Brennan and me… but I will do everything I can to protect my traitor from Stone’s wrath.
Ghosts chase us by day and haunt me by night. As shifters and vampires close in on us, I have to call on Shaw, Cole and Liam. Each of these men has strengths that may save us—and flaws that may break us all apart.
In the end, there’s no escaping Stone King. Fate has brought me and these men together. And together, we will face the ghosts of our past.
If we fail each other, those ghosts will drag us into the grave.