BOOK9 of THE RAMBEE BOO SERIES: RAMBEE BOO HELPS OUT TOO!
When Mom and Dad can't take the mess any longer, they decide that Rock and Rambee Boo need their own play space—and a treehouse is the perfect solution! The whole family pitches in to help build it, but at first, Rock doesn't think Rambee Boo's help is all that useful. However, as the project comes together, Rock soon realizes just how important Rambee's contribution has been!