Seasonal Mystery Filled with Clues and Friendship! Brian and Bradley really want a pet duck, but their mom isn't so sure it's a good idea. So on Mother's Day, the boys decide to take their mom to see the amazing Hypo, a hypnotist; maybe he can hypnotize their mom into loving ducks. But after the show their mom starts acting "quacky." She splashes in the bathtub for hours and leaves a corn kernel mess wherever she goes. Now the boys must figure out how to "quack" the mysterious spell and turn their mom back into a regular human! From Ron Roy, author of the A to Z Mysteries, comes a series starring the younger siblings and cousins of the A to Z Mysteries characters. These early chapter books are sure to be treasured by kids who love mysteries, jokes, and clues.