While their human family is away, Harold the dog and Chester the cat are boarded at Chateau Bow-Wow where Chester becomes increasingly alarmed by the strange behavior of his fellow guests and the sudden disappearance of one of them.

Asks the reader to help Nate the Great solve the mystery of his friend Annie's missing dog Fang.

"Joe and Frank's winter break skiing holiday turns to horror when a series of deadly mishaps threaten their resort."--

When the Aldens go to the Pickering Natural History Museum to assist with the opening of a dinosaur exhibit, their work is hampered by a series of mysterious happenings.

The Thea Sisters travel to Italy for a ballet competition and must figure out who is trying to sabotage the contest.

As Winnie attempts to solve a mystery surrounding a circus horse, she struggles to keep a "normal" family life despite the absence of her mother. .

When the Alden children go camping on Blizzard Mountain, a place said to be inhabited by a ghost looking for buried treasure, they begin to think someone or something is trying to scare them off.

The adventures of the four Alden children as they investigate a mystery that took place in the yellow house on Surprise Island many years before.

While in New Orleans helping mystery writer Olivia Chase open a new bookstore, the Boxcar Children investigate the mystery of some disappearing books and uncover some valuable items

Accompanying her father to Los Angeles on business, Nancy learns about a long-unsolved murder of a beautiful movie star and uses her sleuthing skills and the help of her new friends to investigate old clues to crack the case.