One twin's immortality could lead to the other's end.

Celeste Torok and her twin brother Nick could not be more different. Celeste is as introverted as Nick is charismatic. There is one thing, though, they have in common: they are mortal. Their immortal adoptive parents made sure of that.

When Nick's rebellious ways place Celeste in danger, she is forced to seek safety in the Midwest. As if the familial alienation isn't enough, she's tormented by her forbidden desire for Tristan, the supreme warrior of her parents' coalition, the Realm. With her future uncertain and her past shattered, she follows in her biological father's footsteps and joins law enforcement.

As lead investigator on several bizarre child abduction cases, Celeste soon discovers that bullets and modern weaponry will not stop these criminals, and that a war is brewing between the Realm and renegade vampires. Celeste joins Tristan, her family, and the rest of the Realm to destroy the renegade vampires once and for all.