Three kings have claimed the Urwald's land. Their armies are closing in on the forest's borders. Jinx knows the Urwald belongs to no one but itself: the people, trees, and monsters who inhabit it. Can he convince all of them to work together with the wizards and witches to save their homeland?

Jinx also needs to save Simon, and so must travel into the dangerous icy depths beneath the Glass Mountains until he reaches the nadir of things—a spot as perilous as it is powerful. Only if Jinx can summon enough of his magic—the bright fire within him—will he be able to rescue Simon, defeat the Bonemaster, unite the Urwald, and fight off the invaders. He is the Urwald's only hope.

In this action-packed conclusion to the acclaimed Jinx trilogy, Sage Blackwood spins an epic tale about good and evil, fire and ice, magic and knowledge, and becoming who you are meant to be.