Arnold has swallowed the Magic School Bus! Now, instead of seeing an exhibit of the human body at a museum, the class is taking a look at Arnold's stomach, his intestines, his bloodstream, and more from the inside on this heart-stopping fieldtrip - one the reluctant Arnold would be happy to miss.

Joanna Cole and Bruce Degen, the author and illustrator of the Magic School Bus books, have collaborated for twenty years, bringing humor and true kidlike curiosity to science and learning. Booklist heralded Ms. Frizzle as "the wackiest, wisest teacher in picture books." Two MSB titles have been named School Library Journal Best Books of the Year, and they have won countless state book awards, from New York to Nebraska.