Magic Tree House Book #9 of 38: Dolphins at Daybreak (paperback) Mary Pope Osborne

Book 9 of 38

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?

September 2023