The Aldens search for carousel horses that have disappeared from an amusement park.

The Aldens set out to prove the innocence of their old friend Mike, who has been accused of starting a fire.

During a trip to Oregon, the Aldens are astonished when Watch discovers a backpack filled with valuables, a finding that compels them to learn what happened and return the backpack to its rightful owner.

The Boxcar children uncover a mystery when they compete in several contests at the county fair.

The Aldens travel to Ireland to explore castles. While visiting Duncarraig Castle the children discover a cloaked figure roaming around.

The Growling Bear Mystery: The Aldens love exploring the many hiking trails around Yellowstone, especially Lost Cabin Trail. But suddenly, the trail is closed because of bear activity, and then the map disappears! Could someone be trying to keep the Aldens away from the trail? It's a mystery - and the Boxcar Children are going to solve it! The Mystery of the Lake Monster: When the Aldens arrive at Lake Lucille, they're excited to explore the forests...

The Alden children are helping out at a radio station, and they're going to be actors in a live mystery show. But when strange things keep happening, people in town say the station is haunted. Can the Boxcar Children catch the radio ghost before the station's listeners are scared away?

"The Aldens find a hidden time capsule! Inside is a journal with clues to a treasure hunt. Who wrote the journal? And after a hundred years, can the Boxcar Children find the treasure?"--Back cover.

"In this all-new very special mini-series, the Aldens have been recruited by a secret society to return lost artifacts and treasures to their rightful locations--all around the world! The Aldens arrive in Egypt but the agent they're supposed to meet has gone missing! With the help of a puzzle in a papyrus scroll, they figure out their next mission--to deliver a tiny ancient pharaoh statue to an archaeologist at the Pyramids! Along the way they outwit...

When the Alden children and their grandfather visit Everglades National Park in Florida to solve the mystery of a missing ranger, they discover that a panther provides a clue.