mystery and detective stories

When fifth-grader Cam notices that the prizes for the most difficult game at the school carnival are rapidly disappearing, she uses her amazing photographic memory to investigate.

Dead bodies which appear and disappear mysteriously are threatening to lose Sam's father his job as manager of the Besseldorf Hotel. What can be done? How do you find a ghost?.

When the Alden children spend a week visiting at Pilgrim Village, they uncover the mystery behind the unusual happenings at the historic site.

At the same time that the Alden children's efforts to raise money for a new hospital wing are being sabotaged by nasty tricks, they find their attempts to befriend the new girl Beth frustrated by her strange behavior.

The Alden children suspect someone of trying to sabotage the local dog show.

While sightseeing in San Francisco, the Boxcar children uncover a mystery involving fishing boats and sabotage.

The Boxcar children uncover a mystery when they compete in several contests at the county fair.

On a camping trip to Arizona with their grandfather, the Alden children search for a lost gold mine.

The Alden children investigate when Mrs. Murray's jewels are stolen during a party for the Starlight Skating Troupe.

Someone is trying to put Aunt Jane's motel out of business, but the Alden children aren't going to let that happen.