The Boxcar Children's friend Mike is wrongly accused of starting a fire. Can they discover who is really behind Mike's mystery?

"Henry, Jessie, Violet, and Benny Alden are orphans looking for a place to live together as a family. Could a boxcar in the woods be their new home?"--

The Alden children save an old woman's house, land, and all the animals in her animal shelter from greedy contractors.

Relates the exploits of the four Alden children as they locate a missing man. The Boxcar children are determined to solve the mystery that surrounds an old yellow house on their grandfather's property. Strange things have happened in that house where long ago a man disappeared.

The Boxcar children become suspicious of a man they see snooping in the library and are determined to find out his secret.

The Boxcar Children, now living with their grandfather, spend the summer on their Aunt Jane's ranch. Their aunt seems quite unhappy until at the end of the summer a surprise discovery brings happiness to all.

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.

Six children help solve the mystery of a missing spyglass that has kept two brothers feuding for years.

While on a bicycle trip to their aunt's farm, the four Aldens help solve a mystery.

The Aldens search for carousel horses that have disappeared from an amusement park.