Thanks a Kazillion

Paperback
There is big trouble in little Fruitfly Bay ...Ainsley Banana has been kidnapped, Zucchini Spacestation has disappeared, and Worldly is plotting to invade Earth. Harlan and his friends spring into action, but the trail is cold, so they must look for clues in unlikely places. What does the city Bow know? Will they find the answers in the Pool of Knowledge? And what happens when they come up against an evil alien determined to rule the universe? Harlan leads a crazy cast on a rescue mission that will take them out of this world.