"Henry, Jessie, Violet, and Benny used to live in a boxcar. Now they have adventures everywhere they go. At a lighthouse, the children find a mystery in the night!"

When four orphaned siblings must flee their town in the middle of the night to avoid being split up, a boxcar in the woods becomes their new home. Thanks to their practical skills, a helpful stray dog, and the kindness of strangers, the brothers and sisters are able to build a new life together.

The Aldens search their home for hidden treasure. Hidden behind the wall of their guest room, a mysterious journal leads the Aldens on a search for a valuable collection.

What will the Aldens discover on a vacation to a deserted island? Adapted from Gertrude Chandler Warner's story of the same name, this early reader allows children to start reading with a Boxcar Children classic.

The Aldens have joined Dr. Iris Perez as she investigates legendary creatures around the world. In this adventure, the children investigate what might be living in the deep trench off the coast of Puerto Rico. From manatees to mermaids to sea monsters, creatures of the sea have been attracting tourists to the area for years. But when a man on a nearby island goes missing, it's up to the Aldens to sort out fact from fiction.

Learning about paleontology and fossil hunting under renowned scientist Dr. Iris Prez while attending summer camp in Colorado, the Aldens investigate an outbreak of strange events that local superstition attributes to a bigfoot creature roaming the valley.

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 Alden children uncover a plot to sabotage the Greenfield Bears baseball team. Includes baseball puzzles and activities.

While staying at an eighteenth-century inn in Vermont, the Boxcar children become curious about the mysterious "accidents" that keep plaguing the owners.

The Alden children discover another mystery when they agree to help injured Mr. Yee tend to his plot in the community garden and find out that vegetables are going missing and plots are being vandalized.