"Summer of the Sea Serpent" by Mary Pope Osborne is a part of the Magic Tree House Merlin Mission Series, published by Random House Children's Books in 2004. This hardcover book, measuring 8.5 inches in length and 5.8 inches in width, contains 128 pages filled with legends, myths, fables, fantasy, magic, monsters, and time travel. Its captivating storyline is perfect for young readers who enjoy a mix of adventure and family themes, making it a delightful addition to any bookshelf.