After the Boxcar Children move in with their grandfather, they spend the summer having adventures on a private island.

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.

When the Alden children climb to the top of Old Flat Top Mountain, they encounter a mysterious mountain cave, a perilous rockslide, and a secret treasure.

The Boxcar Children are spending the summer in an enormous New England farmhouse. Near the house there is an old woodshed that holds a surprising secret that dates from the Revolutionary War.

The Aldens' boxcar is the perfect place for games, picnics, sleepovers, and fun. But is it also the perfect place for ghosts? When strange things start happening there, Benny is convinced that the boxcar is haunted. Will the Aldens be able to scare away the spook...or is it good-bye, boxcar?

A friendly writer with a metal detector, the mysterious inhabitants of a tower house, and the discovery of a locket in the sand are ingredients for the Aldens' latest mystery.

The town of Greenfield is having an art contest to celebrate the work of local artists. The Boxcar Children are getting to know the artists and the gallery owner and learning all about art. But could the gallery be filled with stolen paintings?

The Aldens are spending a week at Camp Seagull on beautiful Claw Island. But as soon as camp begins, they realize that someone is not playing fair. Everything begins to go wrong for the Aldens they lose their luggage, Henry misplaces the camp flag, and the campers on the other team use one of Jessies ideas to score points for themselves. Are some campers so desperate to win the Olympics that they are willing to cheat? The Boxcar Children are...

The Boxcar children investigate when ice cream and other items start disappearing from their favorite ice cream parlor.

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.