Jack and Annie are ready for their next fantasy adventure in the bestselling middle-grade series the Magic Tree House
IT'S SINK OR SWIM
for Jack and Annie when the Magic Tree House whisks them off to the middle of the ocean. Luckily, they find a mini-submarine on a coral reef. "Unluckily," they are about to meet a giant octopus and one very hungry shark. Will the dolphins save the day? Or are Jack and Annie doomed to be dinner?
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About the Author
Mary Pope Osborne is the author of the bestselling Magic Tree House series. She has also written many acclaimed retellings of myths, folktales, and works of historical fiction.
Murdocca has illustrated numerous picture books and chapter books.