Sách nói: Box-Car Children

Four children: Henry, Jess Violet and Bennie. They are living alone in a stranded boxcar. They find items they need from the dump and a stray dog whom they name Watch. Henry earns money by working for a man named Dr. McAllister and his mother, Mrs. McAllister. But, while they are living their daily lives, little do they know that the McAllisters are watching their every move.