Written by Stephanie Calmenson
Illustrator Barbara McClintock
Published 1985
Publisher Holt, Rinehart and Winston

A cave creature shows up at Boober's room. His friends love the creature and name it Waggleby, but Boober is not pleased with him at all, especially when Waggleby starts messing up his cave. In the end, Waggleby finds him a rare Flava Flower, and Boober starts seeing him as a faithful friend.