After Kris gets a mannequin of her own because she is jealous of all the attention which a ventriloquist's dummy n brings to her twin sister, horrible happenings seem to double.
Margaret and Casey become worried when their father, an unemployed botanist, begins spending all his time in the creepy basement conducting plant experiments.
Evan visits an old toy store and buys a dusty can of monster blood. It is fun to play with at first, but then Evan notices it is growing, and getting an appetite.
After moving to the town of Dark Falls and finding their new--old--house very creepy, Amanda and Josh's parents encourage them to make new friends, which proves to be a hauntingly dangerous mistake.
When Kat's family moves into a new home and she finds a live sponge under the sink, her family's luck starts to turn and she discovers that the sponge is really a mythical Grool.
Gretchen and her stepbrother Clark's creepy trip to their grandparents' place--which lies in the middle of a swamp--gets even scarier when growling noises start coming from the room that is always locked.
Mark is intrigued with the shrunken head his aunt sends him from the jungle island of Baladora, and his fascination only increases when he wakes one night to see the head glowing with a strange power.