Gertrude Chandler Warner

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

Eccentric Aunt Jane needs help on her ranch so the Aldens, affectionately known as the boxcar children, get help from a private detective.

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

The Alden children, isolated in a storm at a small bus station, are led into a mystery centering on a polluted river.

When the Alden children go camping on Blizzard Mountain, a place said to be inhabited by a ghost looking for buried treasure, they begin to think someone or something is trying to scare them off.

Four orphaned children make a home for themselves in an abandoned boxcar and are united with their grandfather.

While vacationing at an aquarium in Florida, the Aldens soon discover that the shark is in danger--someone at the park wants it gone.

While visiting Lake Lucille in the Adirondack Mountains, the Aldens hear stories about a monster in the lake and then encounter evidence that it may be real.

The Aldens visit an old camp in Quebec, Canada, and begin to suspect that someone or something is trying to scare them away from the place.