Emma Mathews never believed she was like everyone else, but neither did she think herself crazy. Meeting Joe Castlellaw, Henry Dearborn High's newest student, was like waking on a cold rock in a strange place, the world bathed in liquid moonlight. Everything is different nowand fraught. Visions of a dark forest, a screaming woman and blood haunt Emma's dreams, and not only at night. But Joe's lonely beauty makes her float on air, and she would follow him anywhere: out of high school and through the great tree, to a world of poetry and political savagery, of magic and murder, to a life that is entirely theirs and yet unlike anything they have ever known.