Is a robber loose in Boogle Bay? Otto the alligator investigates in this funny, high-spirited Otto & Uncle Tooth Mystery for early readers by Geoffrey Hayes, winner of the Theodor Seuss Geisel Award. Otto wants to be a hero like Uncle Tooth, so he follows the shady figure who is skulking around the riverboat docked in the harbor. Readers young and old will enjoy this madcap adventure full of silly disguises and mistaken identity.   Step 3 Readers feature engaging characters in easy-to-follow plots about popular topics. For children who are ready to read on their own.