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

While staying at an eighteenth-century inn in Vermont, the Boxcar children become curious about the mysterious "accidents" that keep plaguing the owners.

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

While helping out part time in a pet shop, the Alden children discover an employee who is smuggling and selling exotic animals.

While staying at a London inn, the Aldens are puzzled by the peculiar behavior of two fellow guests, a mysterious stranger who follows them, and a misplaced antique brooch.

While visiting a friend in New York City, the Aldens investigate the theft of a valuable diamond.

The Aldens help a farmer whose honeybees have stopped producing honey and discover a sabotage scheme.

While visiting an old mansion, the Aldens investigate the possibility that it may be haunted.

Henry, Jessie, Violet, and Benny used to live alone ina boxcar. Now they have a home with their grandfather, and they're about to get caught in a web of mystery! New neighbors are moving in down the street and the Aldens can't wait to meet them. But do the neighbors want to meet the Aldens? They've built a high wall around their property and they stay shut inside where no one can see them. Even creepier are the huge black spiders on their front gate!...