Gertrude Chandler Warner

The Alden children draw upon their resourcefulness to save the neighborhood firehouse from being torn down, while they also face a series of mysterious incidents connected with it.

The Aldens accompany their grandfather to his class reunion and investigate the possibility of a buried Civil War treasure, and of a ghost in the bell tower, at Goldwin University.

The Aldens start a business producing birthday parties and find themselves investigating a series of robberies taking place during their parties.

The Alden children visit a family friend at his apple orchard which is rumored to be haunted, but instead of a ghost they find that some of the families' valuable antiques are being stolen.

Benny tries to figure out why his dog, Watch, keeps escaping from the yard.

When the Alden children and their grandfather visit Everglades National Park in Florida to solve the mystery of a missing ranger, they discover that a panther provides a clue.

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

When Benny's friend comes to visit the Alden house with his two-year-old brother Sam, the younger boy makes trouble everywhere he goes.

Two brothers take summer jobs at a department store where a series of peculiar events brings them under suspicion.