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.

Henry, Jessie, Violet, and Benny try to find a human explanation for the missing statues at Skeleton Point.

The Aldens take part in a hunt at a gem mine and discover that someone is out to sabotage the contest.

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 hunt for their late grandmother's necklace that has been missing for years.

While staying at the Winding River Lodge, the Alden siblings investigate tales of a zombie haunting a lake in the woods.

The Aldens are volunteering at the local recycling center, where they find plentyof things that can be reused, including a pinata that Benny takes home. But when the center is vandalized,the Boxcar children have a mystery to solve. is there treasure amidst the junk?

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.

Surprise Island: The Alden children spend living on their grandfather's island. The boxcar children: Four orphaned siblings set up housekeeping in an abandoned boxcar because they think their grandfather is mean; but after becoming acquainted with him, they realize he is a nice man and they move into his house and live happily ever after. The yellow house mystery: Relates the exploits of the four Alden children as they locate a missing man. The...