In the third exhilarating novel in this dazzling epic fantasy series, a young outcast will fight against staggering odds to save her world, now in mass market. On the planet Abeth, a narrow Corridor of green land is surrounded by ice plains where only the strong survive. Ice-triber Yaz has completed a perilous journey and arrived at the Corridor, and it exceeds and overwhelms all of her expectations. Everything seems different, but some constants remain: her old enemies are still two steps ahead, bent on her destruction.