Ravenna’s plan calls for Kaytaiya and Eorik to travel across the country and bring back the Little Plane to jump-start the engines of the Big Planes. They are to return by the steam locomotive train named Joe - if they can persuade him to carry them! Kaytaiya is distressed to find that in the plan, she must be magically transformed into the body of a cat. And Joe is found to be under the spell of a mind-numbing weed.