When the Aldens visit Peggy and Doc Firmin's farm, they're in for a treat: a behind-the-scenes look at a real teddy bear workshop! But a very rare and valuable bear has disappeared from the toy hospital. Now it's up to the children to track down the teddy thief!

After the Boxcar Children move in with their grandfather, they spend the summer having adventures on a private island.

The Aldens visit Grandfather's friend at the Ogopogo Retreat and aided by puzzling clues, embark on a treasure hunt to prevent the retreat from being sold.

The Boxcar Children, now living with their grandfather, spend the summer on their Aunt Jane's ranch. Their aunt seems quite unhappy until at the end of the summer a surprise discovery brings happiness to all.

When the Alden children accompany their grandfather to the Snow Haven Lodge, a series of odd occurrences threaten to disrupt the annual winter games.

While on a cruise with their grandfather, the Alden children help discover who is behind the mysterious troubles of the ship--disconnected phone lines, engine trouble, a man overboard--and still have fun sightseeing, eating, and swimming.

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 Aldens find themselves right in the middle of an Iowa cornfield and a brand new mystery The farm where the children are visiting is famous for its wonderful corn maze, and every year visitors come to walk through the maze and enjoy the Corn King Days festival. But the maze is being vandalized at night, and the festival is in danger of being shut down. Can the Boxcar Children catch the culprit and save the festival?

The Boxcar Children are snowbound in a spooky old log cabin.