Diadem of Blood and Bones by Ripley Proserpina — book slip

Forced to choose between her life and the lives of the vampires she loves, Briar Hale makes the ultimate sacrifice. But her vampires refuse to accept her decision, transforming her into an immortal at the last moment.

Now, with eternity ahead of her, Briar must navigate a world of love and hope, but also danger.

As creatures of darkness threaten everything she holds dear, Briar must harness her newfound strength and the vampire within her to protect those she loves. Can she maintain her humanity, or will her new power consume her?