The Biology Adventurers: On the River - Hardcover

by Melanie Peffer (Author), Valentina Gallup Salerni (Illustrator)

Brother and sister duo Ellie and Max are exploring their local river to see if it is healthy. Ellie wants to earn her Biology Adventurer River Badge with her brother Max. But Max doesn't think he's any good at science. Can Max overcome his nerves and earn his adventurer badge, too?