The Magic School Bus was a series of children's books intended to teach scientific concepts to children. They were written between 1986 and 2001 by Joanna Cole and illustrated by Bruce Degan. The books feature the exploits of Ms. Frizzle and her class of students at Walkerville Elementary School who board a magical school bus which takes them on educational adventures to space, under the Earth, into the human body, or to other such locations. The books were written in the first person from the point of view of an unnamed student in the Friz's class.

Synopsis:
A forgotten homework assignment, a soggy shoe, and a tuna fish sandwich set the scene for another zany Magic School Bus adventure, as Arnold and Keesha travel to the depths of the ocean and end up in the belly of a tuna. Their excursion teaches them about the food chain, but how are they going to get back to Ms. Frizzle and the gang to give their report? Full color.