Harry has helped his mother with the shopping:packing groceries in a box at the supermarket, and then unpacking it at home. She rewards him with the box once it's empty, and with it he and his faithful hound Wolfie spend an afternoon braving high seas and discovering undersea worlds, without ever going farther than their own backyard. In this charming and beautifully illustrated picture book, readers will enjoy Harry and Wolfie's fantastic adventures. The best toys need only a little imagination to bring them to life.