While visiting a Navaho Indian reservation in New Mexico, the Aldens try to save a forest under threat of development by proving it is the site of a lost, buried village, but someone is sabotaging the
When their grandfather's friend, Carrie Bell, invites the Alden youngsters to help her restore an old castle, the children become involved in searching for a missing Stradivarius violin, investigating
When their grandfather arranges for them to spend two week at Sunny Oaks, the four Alden children enjoy settling into the routines of farm life but become suspicious about a mysterious horse locked in
Possibly in an effort to win by any means, someone is wreaking havoc at the winter carnival competition at Snow Haven, where the Aldens are competing in skiing, skating, and building snow sculptures d
While working to raise money for the Greenfield Hospital, the Alden children and their new friend, Beth, are suddenly confronted by unexpected sabotage and Beth's mysterious disappearance. Simultaneou
On a visit to a zoo owned by their grandfather's friend, the Boxcar Children discover that someone has been sabotaging the animal cages, and when the water is drained from the seal pond, they suspect
