To liven up his class trip, Harvey Moon brings his pet lizard, Zippy, along to the museum.

Whoops.

When Zippy escapes, Harvey's adventures begin. You'll be laughing and wondering what's next as knights, dinosaurs, and even mummies get into the act.

Cut loose in a museum setting with a brave boy, a lively lizard, a funny plot—and award-winning author and artist Pat Cummings at her entertaining best.