When Henry adopts Ribsy, a dog of no particular breed, humorous adventures follow.

Henry Huggins makes a deal with his father--if Henry can keep his dog Ribsy out of trouble for a month, he can go fishing with his father. Ribsy does his best to make Henry lose the deal.

"Henry Huggins and his friends Robert and Murph have been working hard to build a clubhouse of their very own--one in which they can be safe from neighborhood pest Ramona Quimby. But Ramona not only refuses to pay attention to the phrase "No Girls Allowed," she almost ruins Henry's paper route--and his newspaper career. Something has to be done about this neighborhood nuisance!" -- Page [4] cover.

When Henry adopts Ribsy, a dog of no particular breed, humorous adventures follow. La vida cambia para Henry Huggins con la aparación de Ribsy, un perrro flaco y desgarbado que encuentra un día a la salida de Y.M.C.A.