Princess Mallory awakens from a snowstorm to find that her home, Kingdom Magnapeake, has been destroyed. But she also finds that she can turn into a tree Together with her mechanical friends Hegle and Treesel, she travels the world of Pangaea to find a way to rebuild her old home.But, along the way, she encounters shadowy creatures, the Drought-Dwellers whose smoky bodies burn through anything they touch, who will try to stop her at every turn.