One warm night four children stood in front of a bakery. No one knew them. No one knew where they had come from. Henry, Jessie, Violet, and Benny are orphans. Determined to make it on their own, they set out to find a safe place to live. They discover an old, red boxcar that provides shelter from a storm. Against all odds, they make it into their home-and become The Boxcar Children.

The Boxcar children travel to Maine, take canoes into the wilderness and live in a house exactly like the one on Surprise Island, except the Maine house is brown, not yellow. They untangle the mystery of the two houses.

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

Hidden behind the wall of their guest room, a mysterious journal leads the Aldens on a search for a valuable collection--

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.

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

While canoeing and backpacking near Timberwolf Lake, the Aldens receive strange warnings to stay away from the area and stumble upon clues to a missing cache of stolen coins.

"The Aldens visit the shore in New Jersey and help out at an amusement pier that is rumored to be unsafe."--

The Aldens are visiting a small town known for its fall festival, and while Grandfather is off taking in the fall colors, the children try out the town's newest attraction ---a Halloween escape room! The Aldens love solving the puzzles to get out of the room, and they don't mind the spooky theme. The problem is, someone --or something is making things downright scary for other customers!

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.