When a mysterious stranger from Aya's past shows up in Ashburton it's not all good news. Tristan, a man she saved almost a thousand years ago, brings a warning that will affect not just her, but her new family. Regulus is coming. To protect Zac, Aya has to destroy the best thing that has ever happened to her. She has to pretend that their love has been a lie. But, is it really the right thing to do? Aya travels to the other side of the world with Tristan to learn the secret behind Zac's blood and to hunt down Regulus before he can find them first. Tristan is her way into the Roman's circle, but she might just find that both her quests are more linked than she ever thought possible. Heartbroken again, Zac must surrender to the darkest places inside himself if he ever hopes of coming back. Even if that means aligning himself with his greatest enemy. Even if that means turning his back on everything he's worked for and walking away from his brother, Sam. Lovers are torn apart, friends are pitted against each other and families are splintered. But, what they find buried under the streets of London will change everything they've ever known about their world. Something that should have been left alone. But, what Regulus does is the most unexpected of all.