Mandy travels to Folan's Racing Stables where it is believed to be haunted by the ghost of a horse killed in a race.

"When unlikeable Elsie dies in the influenza pandemic of 1918, she comes back to haunt Annie to make sure she'll be Annie's best--and only--friend soon"-- Provided by publisher.

When Malcolm gets a school assignment to write a research report on a long-dead hero who wrote a book about his adventure-packed life, he is shocked to meet the author's ghost, who reveals that he was a fake.

It takes a little imagination and help from Dandy's new girlfriend to zap a headless ghost at Mr. Gable's horse stable.

The secret is revealed that the factory is haunted when Mrs. Goolsby's class is dodging flying sugar beets when on their class trip.

When the Mystery Machine gets a flat tire, the only place to stop is a creepy old castle. The man who owns the castle is having a dinner party and invites the gang, but an unexpected visitor shows up-- a ghost!

Strange sounds in the attic convince the Bobbsey Twins that there is a ghost, and with Nan and Bert away and their parents skeptical, it is up to Freddie and Flossie to solve the mystery.

Malcolm and Dandy learn there is more to the mummy Tuturtikum than just a wad of rotting rags when they become victims of the curse.

The Aldens investigate the rumors of ghosts, disappearing props and a haunted seat in the Trap-Door Theater.