Gertrude Chandler Warner

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.

"The Aldens are at Wildcat Crossing, a recreated frontier town full of cowboy fun. But when horses disappear and other pranks threaten to ruin the Wild West show, the Boxcar Children must find out who's the varmint causing all the trouble"-- Provided by publisher.

The four Alden children, aged six to fourteen, uncover a mystery while volunteering at a food pantry for the needy.

The Alden children hunt for their late grandmother's necklace that has been missing for years.

"The Alden children discover clues that could help them figure out why a man vanished from a run-down yellow house on Surprise Island"--

The Aldens are visiting friends for a big Dia de los Muertos celebration. The kids love learning about the holiday and helping out - that is until mysterious events threaten to ruin everyone's preparations. Can the Aldens figure out what's going on and help their friends save the celebration?

While helping their grandfather prepare for Greenfield's Winter Festival, the Alden children uncover a mystery surrounding the statue in the town square.

The Alden children are thrilled when a famous orchestra comes to their town to perform, and when an original Mozart score turns up missing, they solve the mystery of its disappearance.

Jessie and Henry's robotics team is competing in a big tournament. But when their robot is stolen, the Aldens have a high-tech mystery to decode!

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.