"A talented young soccer player in Greenfield is given the honor of being a child mascot at an international soccer tournament in Brazil, but when an anonymous letter insists that she doesn't deserve to go, the Aldens investigate" -- Provided by publisher.

The Aldens find a mysterious painting hidden in the attic. The children learn that it is a portrait of their grandmother, whom they never knew; wearing the necklace Grandfather gave her when they were married. The necklace disappeared on their first anniversary, and was never found. Can the Boxcar Children track down a necklace missing for so many years?

When the Alden children accompany their grandfather on a trip to Seattle, they discover clues throughout the city, seemingly planted just for them.

People line up around the block to buy Mama Tova's cupcakes. But who could be trying to steal her secret recipe? The Boxcar Children follow clues to a cupcake contest, where they must use their mystery-solving skills to find a thief.

Six children help solve the mystery of a missing spyglass that has kept two brothers feuding for years.

The Aldens favorite hockey star, Kevin Reynolds, is coaching a girls hockey team and build a new skating rink right in Greenfield. But when team practices begin, equipment is missing and Kevins plans for the new rink are almost ruined. Is someone trying to stop Kevin?

The Aldens are helping to map out a new trail on Blizzard Mountain. As they travel through the frozen wilderness, they learn that theres treasure buried somewhere on the mountain! The children begin to search for it, but someone or something is after them. Is Blizzard Mountain haunted, or is someone after the treasure?

Henry, Jessie, Violet, and Benny are actors in a live mystery show being broadcast on an old-fashioned AM radio station. But that's not the only mystery the Boxcar children are part of—it's starting to look like the radio station is haunted!

The Alden children travel on a Mississippi paddle-wheel steamer to visit an old family friend in his cabin near Hannibal, Missouri, and try to discover who is responsible for the mysterious activities near the house.

The four Alden children, aged six to fourteen, volunteer at the new recycling center in town, and help uncover who is breaking in and making a mess each night.