What would happen if your made-up bedtime story about the baby in your care was actually the truth? What would you do if you were suddenly thrown into a world where trees melted into gateways and a merciless assassin was after you and the baby? How would you cope if your everyday life was replaced by a reality filled with a different set of rules? And would you trust the young man who emerged from a tree carrying a 1000-year-old Samurai sword and calling himself a Walker-Between-Worlds? These are the challenges that eighteen-year-old Kate Johnson must face in this fast-paced YA fantasy adventure and love story as she and Ash strive to protect an infant prince who is destined to be the savior of his world."