The feisty Festus gets caught trying to nab a duck from his family's yard. The Farley family members decide for Festus, a handsome Jack Russell pup, to become a house dog. Suddenly, he is sad to be inside because he misses running and chasing the ducks. Just when Festus thinks he will never have fun again, the Farleys get a surprise houseguest. The Farleys niece Eve comes to visit for the summer. Read the book to find out how Eve and Festus adjust to a summer together.