The Aldens discover that one of Pikesville's little league coaches has been cheating all season, which is somehow related to a plan to raze the town's historic baseball field.

While staying at the Crooked House, the family home of their housekeeper Mrs. McGregor, the Aldens try to solve a riddle that will lead them to a hidden treasure.

While visiting the Outer Banks of North Carolina, the Aldens see a mysterious wild horse that may be a ghost.

A series of practical jokes at a restored nineteenth-century farmhouse makes the Aldens wonder if the ghost of its builder is at work.

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.

While visiting a small town in Alabama, the Aldens hear mysterious howls at midnight, leading them to wonder if an old local legend about a ghost dog is true.

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

When the Aldens have the chance to work at a candy factory, they try to find out who is sabotaging the candy and why.

Henry, Jessie, Violet, and Benny Alden, The Boxcar Children, are helping the Greenfield Museum set up an exhibit about ancient Egypt, when all sorts of strange things begin to go wrong! Is the spooky sarcophagus really cursed, or is someone trying to make sure the exhibit isn't successful? The children are sure to find out, whether they're ready or not.

The Aldens have entered the Ruby Hollow Gem Mine's annual gem-hunting competition. Who wants to win so much that they would steal?