Grades 4-6. Ophelia is a grieving 11-year-old who only believes in things that science can explain. Following her beloved mother’s death, her father takes a job at an enormous museum in a city where it constantly snows. There Ophelia discovers the imprisoned Marvelous Boy, who discloses to her that in three days the Snow Queen will discharge her wretchedness upon mankind. He further reveals that he must save the world before that happens and that only Ophelia can help him. As the boy tells his story, Ophelia accepts the challenges required to release him from his three-hundred-year captivity. She faces magical snow leopards, child ghosts, a Spanish conquistador, and a monstrous misery bird—none of which, like the boy, can be scientifically explained. Nevertheless, Ophelia learns there are truths she never dreamed of and that courage is less about bravery than about the decision to help people in need. Loosely based on Hans Christian Andersen’s The Snow Queen, this clever story-within-a-story reads easily yet offers deep lessons about trust, responsibility, and friendship.