161 books • 23 series
Book #1: Desolation Canyon
Book #2: Bella Bella
Book #35: The Lion Who Had Asthma
Book #1: Duck and Hippo in the Rainstorm
Book #2: Duck and Hippo Lost and Found
Book #3: Duck and Hippo Give Thanks
Book #4: Duck and Hippo The Secret Valentine
Book #4: Here Comes Shopkeeper Hippo