The Mysterious Bookshop

Osborne, Mary Pope, Magic Treehouse #31, Summer of the Sea Serpent

The bestselling, fan-favorite chapter-book series celebrates the summer solstice! In the paperback edition of the 31st Magic Tree House adventure, Jack and Annie are on a quest to a seaside land of mystery and myth, where they must overcome their fears and solve an ancient riddle. Magic Tree House books are New York Times bestsellers.