Ms. Frizzle's students learn about the wonders of butterflies when she takes the class on a Magic School Bus adventure to the swamp in search of the Bog Beast.
General Note
At head of title: Scholastic's.
"Based on the episode from the animated TV series produced by Scholastic Productions, Inc. Based on The Magic School Bus book series written by Joanna Cole and illustrated by Bruce Degen"--T.p. verso.