When Dr. Pimento fiddles with the wiring on Blork's new ship, his mistake sends the entire crew hurtling off to the silliest planet in the galaxy, the Planet of the Dips.
Having jumped off the church roof and into the fantastic Land of Luster, Cara joins Lightfoot, a unicorn, in the search for the Arabella Skydancer--Queen of all the unicorns.
After Susan sees Mr. Smith the substitute teacher peel off his face, she knows he's an alien and only Peter believes her; together they work to save the class from Mr. Smith's horrible plans.
