Bound by blood and time, Mica, Sean, and Killian share a destiny that no one dreamed possible. With the fate of the world in the balance, they fight to save not only humanity, but also each other. 3,000 years ago, Killian accepted an angel's promise. Since then, he's waited for fate to right the wrong that stole his life. The time has come for him to be free, but it's never that easy. Knowing that Mica's love is the only weapon against Sean's demons, he sends her to rescue him. He trusts her completely, but can he trust Sean? Mica's out of options. Sean's lost his mind. Violent and unstable, he's teetering on the edge. Desperate to save him from falling, she risks everything--including Killian. As they work together, she's haunted by a sense of deja vu that leaves her trapped between two realities. Which future is the right one? Tortured by guilt, Sean walks a tightrope between Heaven and Hell. After a woman dies, he'll pay the ultimate price unless someone can save him.