Gertrude Chandler Warner

The Aldens love to visit their friend's drive-in movie theater, where they eat popcorn and watch movies under the starry night sky. But when the sound system mysteriously malfunctions, the kids discover that some of the employees have a secret to hide.

The Aldens investigate when the arrival of several suspicious characters in Greenfield coincides with a mystery involving a popular boy actor.

Jessie wants her science fair project to make a difference. So when she gets the chance to test a local creek for pollution, she can't wait to get started. But when things start going wrong with her experiment, Jessie and her siblings don't just have an experiment to investigate, they have a mystery to solve! Jessie wants her science fair project to make a difference. So when she gets the chance to test a local creek for pollution, she can't wait...

“The Chocolate Sundae Mystery”: The Aldens are helping out at their favorite ice cream store in town, the Shoppe. When very strange things begin to happen, the Shoppe is in danger of losing its customers and going out of business. Can the Boxcar Children solve the mystery and save the Shoppe before it's too late? “The Mystery of the Hot Air Balloon”: The Aldens are so excited when they get to meet other balloonists, learn how hot air balloons...

Schoolhouse Mystery: The Boxcar Children are spending the summer in a tiny, quiet New England fishing village. The little schoolhouse doesn't have a proper teacher, so the Aldens are teaching! There's also a very old library where nobody ever goes - nobody, that is, except for a mysterious stranger. For such a small town, Port Elizabeth has a lot of secrets! Caboose Mystery: When the Aldens spend the summer riding on a train, they get to live in...

Benny Uncovers a Mystery: Benny and Henry are working all summer at Furman's, the biggest store in town, but they hadn't expected that solving mysteries would be part of their job! When an expensive vase disappears, the salespeople receive odd notes, and the jewelry display is tampered with, it's up to Benny to uncover the truth! The Haunted Cabin Mystery: The Aldens are going with grandfather to visit his friend, old Cap Lambert, a retired riverboat...

“The Mystery at the Calgary Stampede”: The Boxcar Children visit Canada to see one of the country's greatest celebrations! Can they catch a jewelry thief at the same time? “The Sleepy Hollow Mystery”: The Aldens visit the spooky town of Sleepy Hollow, where someone-or something-is scaring visitors. Could the legendary headless horseman be real? “The Legend of the Irish Castle”: On their first night in Ireland, the Boxcar Children see...

“The Pumpkin Head Mystery”: Every fall at the Beckett farm, visitors come to buy pumpkins and go on hayrides. Best of all, Henry, Jessie, Violet, and Benny get to dress up in costumes and help with the fun. But something is haunting the farm... a mysterious ghost with a glowing pumpkin head! “The Cupcake Caper”: People line up around the block to buy Mama Tova's cupcakes. But who could be trying to steal her secret recipe? The Aldens follow...

“The Mystery in the Haunted Boxcar”: The Alden children have discovered another mystery close to home! The old boxcar where they once lived is now a playhouse in their backyard. One night, Benny sees a strange light in the boxcar, and the children begin to find clues to the boxcar's past. Could something that happened long ago be haunting the boxcar now? “The Clue in the Corn Maze”: The Aldens find themselves right in the middle of an Iowa...

“The Summer Camp Mystery”: The Aldens are spending a week at Camp Seagull on beautiful Claw Island. But as soon as camp begins, they realize that someone is not playing fair. Are some campers so desperate to win the Olympics that they are willing to cheat? The Boxcar Children are determined to solve the mystery before the competition is ruined for everyone! “The Copycat Mystery”: The Alden children are going back in time by helping at an old...