The Prophecy Book by Jennifer L. Armentrout

History is on repeat… Seth never thought he’d have a future. Now he’s on the brink of having it all: A tomorrow. A family. All that’s standing in the way of that forever with Josie is the Titans. A price must be paid… For Josie, entombing the Titans is what she was born to do. But she also knows she’s not fighting just for herself — she’s fighting for the man she loves, for their future, for the world. Together, Josie and Seth will face the unthinkable. And to win this war, the ultimate sacrifice must be made. For the end is here and the Prophecy will be fulfilled….