The Aldens start out on a one-day mountain climbing excursion that becomes an adventure when they are marooned on a mountain-top, glimpse a ghostly light in the forest and become involved in a treasure hunt.

Four brave siblings were searching for a home – and found a life of adventure! Join the Boxcar Children as they investigate the mystery of an old schoolhouse in this illustrated chapter book series beloved by generations of readers.
The Aldens' friend Max says nothing interesting happens in Port Elizabeth. But when the children visit the small fishing village and come across a man snooping around the local library, they prove that...

"On a farm, the Aldens find their oldest mystery yet! Adapted from Gertrude Chandler Warner's story of the same name, this early reader allows children to start reading with a Boxcar Children classic."--

Mike Wood presents many strange happenings for the Alden children to solve when they spend the summer at Mystery Ranch.

A collection of three spooky stories includes "The Haunted Clock Tower Mystery" in which the Aldens accompany their grandfather to his class reunion and investigate the possibility of a buried Civil War treasure, and of a ghost in the bell tower, at Goldwin University.

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.

Following clues provided by the secretive Reddimus Society, the four Alden siblings travel to a dingo sanctuary in Australia and to Shakleton's hut in Antarctica to deliver the fifth and sixth artifacts, and then they work to unmask the traitor traveling with them.

The Alden children have a home with their grandfather now, but their adventures are just beginning! The first surprise comes when they learn they'll be spending the summer on their private island. A kind stranger who lives there is always happy to help the children out, but does this new friend have a secret?