Charles Tang

The mysterious disappearance of a reclusive neighbor's cat involves the Boxcar children in some complicated detective work.

The Alden children investigate various mix-ups at a zoo run by their grandfather's friend in an effort to save it not only from pranksters but also from the town council.

When they help out at a guide dog training school, the Alden children meet several people who seem obsessed with a particular dog named Ginger.

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.

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

While helping run Jerry Taylor's general store, the Alden children investigate his mysterious employee Nancy.

While staying at a hotel in New York City, the Aldens investigate a series of annoying pranks plaguing the management and guests.

While sightseeing at the Alamo, the Boxcar children investigate the disappearance of a priceless ring from the Alamo museum.

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 the stables.

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.