Lightland

Until now, Lottie Cook and her best friend, Lewis Weaver, have lived fairly normal lives in Iowa. But when Lottie's father carves for her a magical box from an old cherry tree, she and Lewis are transported to LightLand, a fantasy world created by the memories of real-world people. The wicked NightKing rules over LightLand, determined to destroy its citizens by stealing their memories. Soon, Lottie and Lewis are leading the struggle to overcome the NightKing, during which they must confront some painful memories of their own and find the strength to endure the challenge.