For his entire life, Arnold Blue has been kept sheltered from the world around him. He has no hobbies, no friends, and isn't particularly close with his family. When Arnold uncovers a terrible truth that hits very close to home, he runs away. On his journey, he travels with the Tower, a fifteen-foot-tall collection of everything he and his family have ever owned. His struggle to coexist with the Tower, his only means of support in an unknown world, will test his resolve to let go of his bitter past and move forward. Arnold will have to confront his old memories on the way toward a better future, and decide what, if anything, is worth holding on to in his new life.