Tim Gregory

At an old library, the Alden children discover a boy who needs their help and a stranger who is after a valuable object they found in the library.

The Aldens search for an old cabin that holds some hidden gold and run into trouble along the way.

While on a camping trip with their grandfather, the Alden children try to find out about the loud music and missing food that threatens to scare away other campers.

The Aldens take a trip to the New England coast and get to stay in a lighthouse! But strange things happen after it gets dark-an unknown woman is seen walking around, and the Watch wakes up growling late at night. Can the Boxcar Children shed light on a seaside mystery?

A rock slide strands the Aldens on a mountain! But being stuck on Old Flat Top isn't all bad. As the children wait for rescue, they discover that a secret cave has opened up-on that just might hold legendary treasure!

The Alden family rents a houseboat to drift down the river, and encounters a mystery in the little towns along the river, involving a fast black car.

Describes the adventures of the Alden family as they ride across country in a caboose that has a strange history--or is it a mystery?

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.

When someone steals animals from the zoo, the children set a trap using a beautiful but dangerous poison-arrow frog.

The Aldens are spending a weekend at Goldwin University for Grandfathers college reunion. The children are fascinated by the mysterious clock tower overshadowing campus and they soon learn that the tower might hold the key to a valuable secret from the past! But there are strange lights coming from the clock tower at night. Is it haunted? Or is someone else searching for the secret of Goldwin University?