Good and evil -- Stakeout -- A secret hiding place -- Ms. Weatherly -- Message from the past -- A clue -- Black Bear Hump -- A theory -- Lots of bad guys -- Another stakeout -- Digging for treasure -- Caught! -- Belonging.
In the isolated Canadian fishing village where best friends Thumb and Susan live, mystery abounds. How did an eighteenth-century cannonball wash ashore? Why does the new schoolteacher wear a wig and pancake make-up? And why, when the village's lone "bad guy" sneaks off into the woods at night, do eerie screaming noises follow?