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?
<b>Mary Pope Osborne</b> is the award-winning author of many distinguished books for children and young adults, including the bestselling Magic Treehouse series; <i>Favorite Medieval Tales, </i> illustrated by Troy Howell; <i>American Tall Tales, </i> illustrated by Michael McCurdy; <i>Rocking Horse Christmas, </i> illustrated by Ned Bittinger; and A<i>daline Falling Star.</i> The former president of the Author’s Guild, she lives in New York City with her husband, Will.