The Alden children hunt for their late grandmother's necklace that has been missing for years

The Alden children, isolated in a storm at a small bus station, are led into a mystery centering on a polluted river. While waiting for the bus transfer at Plainville Junction, the four Alden children become involved in a controversy over river pollution

Someone is trying to put Aunt Jane's motel out of business, but the Alden children aren't going to let that happen

Cousin Althea may lose her house in an auction. Can the Boxcar Children help her?

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

While exploring the caves around Dragon's Mouth Cavern, a series of unusual and somewhat frightening events convinces the Alden children that someone does not want them around

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.

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 plan to ride in their boxcar at the Greenfield Founders' Day Parade, but the newly refurbished boxcar is stolen a couple of days before the big event

While helping fix up the old house their cousins have bought, the Aldens hear stories about its being haunted and find evidence suggesting that there may be a ghost there