Everyone's favorite science teacher is back as Ms. Frizzle takes her class on a journey into the Mesozoic Era. The Magic School Bus becomes a time machine, giving the students a first-hand look at many dinosaurs and the eras in which they lived.

On his way home, Sung meets a menacing ghost. Using his wit, however, Sung manages to outsmart the ghost and get the better of him. This traditional tale is told in a lively narrative with dramatic, full-color illustrations.