"For A. J. and the gang from Ella Mentry School, a night of regular trick-or-treating turns into the weirdest Halloween in the history of the universe"--

A.J. and the other students at Ella Mentry School brave trick-or-treating at the school secretary's house, even though it is supposedly haunted.

Hubie is about to scream. He doesn't have a costume for the scariest Halloween costume party ever. Too bad he can't just go as the invisible man and stay at home. Plus, there's going to be a ton of monsters at the party. He better find a costume quick or become a tasty treat for all those cruel ghouls!

"It's Halloween in Elliot's Park and the squirrels are all in costume, ready for some trick-or-treating fun. But when Elliot, Chip, Twitch, and the rest of the gang think they see a ghost in Camp Canyon, there's a frightful mystery to be solved. Can

Steve Boswell will never forget Carly Beth's Halloween mask. It was so gross. So terrifying. But this year Steve wants to have the scariest costume on the block. So he gets a mask from the same story where Carly Beth got hers. It looks like a creepy old man. With stringy hair. A wrinkled face. And spiders crawling out of the ears! Steve's definitely got the scariest mask around. Too bad he's starting to feel so old. And so tired. And so evil.

Nate and his dog Sludge try to solve a case on Halloween night and find themselves locked in a haunted house.

While her father is away fighting in World War II, Molly finds her life full of change as she eats terrible vegetables from the victory garden and plans revenge on her brother for ruining her Halloween.