Young readers climb aboard a super submarine with Mouse, Rabbit, and Bird and learn what submarines do, how they do it, what makes them go down, and how they come back up again.

A colorful and sweet depiction of being in a submarine, being submerged deep in the ocean to see a lot of deepsea creatures, and a great way to learn about the main parts of a submarine which work together to make it work. This book also includes a page where all of the parts of a submarine are summarized so that readers can reflect on the parts after reading the book.