Desired for Her Blood by Mara Leigh

All is lost. We are truly trapped.
I’ve fallen for all three of the powerful vampires captive with me—Ryker, my charming bad boy, Zuben, my elegant intellect, and Axe, my gruff and enormous bear shifter hybrid.
All three men would die for me, kill for me.
Our desires consume us, but we can’t live on passion. They can survive on my blood, but if we don’t escape, I’ll soon perish. And the vengeful vampire trapping us won’t be satisfied until she knows we’re all dead.
The men’s tortured pasts are exposed, which only opens my heart to them further. I’m transforming, discovering why I’m hunted, but time is running out, and our only route of escape might kill me.