Gertrude Chandler Warner

Four orphans take shelter in an old, red boxcar during a storm, and, determined to make it on their own, they turn it into a safe, cozy home.

The Boxcar Children visit the old farmhouse where Grandfather and Aunt Jane grew up! But people in the nearby town seem to think something isn't quite right about the house. As the Boxcar Children investigate, they start to uncover secrets about the farm's past—dating all the way back to the Revolutionary War!

The Boxcar children are on vacation in the South Seas on what is supposed to be an uninhabited island but they soon suspect that someone else is there too.

While visiting a recent purchase of Grandfather's, a ghost town in the Rocky Mountains, the Aldens encounter a mystery involving a run-down motel and a woman who may be a ghost.

The Boxcar children spend a summer with Aunt Jane, their grandfather's sister, a very unhappy woman. They try to help her but it isn't until the end of the summer that they learn her secret and make a surprising discovery Bout Mystery Ranch.

The Alden children travel to Hannibal, Missouri, to solve mysterious activities near a friend's cabin.

At an old library, the Alden children discover a boy who needs their help and a stranger who is after a valuable object they found in the library.

A family starts out on a one-day mountain climbing excursion that becomes very exciting. In fact, it becomes an adventure for the former "boxcar" family. They unearth some mysteries and have a fine time in the process.

The Alden family rents a houseboat to drift down the river, and encounters a mystery in the little towns along the river, involving a fast black car.

At the same time that the Alden children's efforts to raise money for a new hospital wing are being sabotaged by nasty tricks, they find their attempts to befriend the new girl Beth frustrated by her strange behavior.