The Boxcar Children are snowbound in a spooky old log cabin.

Benny wants adventure and finds it as he and the other Alden children help uncover the plan of those who would prevent ballooning from coming to Lloyd's Landing.

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' boxcar is the perfect place for games, picnics, sleepovers, and fun. But is it also the perfect place for ghosts? When strange things start happening there, Benny is convinced that the boxcar is haunted. Will the Aldens be able to scare away the spook...or is it good-bye, boxcar?

The Alden children travel on a Mississippi paddle-wheel steamer to visit an old family friend in his cabin near Hannibal, Missouri, and try to discover who is responsible for the mysterious activities near the house.

When their grandfather buys a bookstore at auction in New Orleans, the Alden children help clean it up and discover that several people seem to be obsessed with the store and its contents.

When a bad storm hits Greenfield, the Boxcar Children must uncover a mystery without the help of their electronic devices.

"The winter sports season is here, and the Aldens are excited about all the snow activities--especially snowboarding. But soon they find themselves in the middle of a mystery surrounding a star athlete and a stolen snowboard"--

The four Alden children, aged six to fourteen, uncover a mystery while volunteering at a food pantry for the needy.

When they take their dog, Watch, for obedience training, the Alden children discover that some of the dogs in the class have vanished and decide to try to solve the mystery of their disappearance.