From the back cover:
When the four Penderwick sisters find themselves staying on a beautiful estate called Arundel for their summer holidays, they can't wait to explore the wonderful, sprawling grounds. And even more wonderful is Jeffrey, son of Arundel's owner - the perfect companion for their summer adventures. But Jeffrey's mother is less than thrilled with the Penderwick sisters and warns the new friends to stay out of trouble. Which, of course, they will. Won't they?
