It's a delicious new mystery with the Boxcar Children as they help catch a cupcake thief! Mama Tova's shop in Greenfield is so famous that every day, people line up around the block to buy her cupcakes. But when someone breaks into her kitchen, it's clear that her secret recipe is in danger. The Aldens follow the suspects to a bake-off where they must find the culprit using their mystery-solving skills-and their taste buds, too!

Cousin Alice is running for mayor in her town, and the Aldens are helping with her campaign! But, Alice's campaign posters are torn down and painted over, and the same thing happens to her opponent! Then posters for a third candidate appear around town, but nobody has ever seen him in person. Will the town elect a mystery man for mayor? The Aldens are on the case!

The Aldens are helping the owner of a local restaurant grow delicious food in a garden. They work hard to water and weed and take care of the fruits and vegetables that are growing. But, soon the children notice the strangest thing-the plants are moving. The tomato plants aren't in the same spot they were planted in! How could that be happening? Then, when fruits and vegetables start to vanish from the garden, it's clear that a brand new mystery is...

The Aldens are preparing for a yard sale when they find an old wooden mask in the trash behind a neighbor's house. Violet notices that the mask looks like a Native American mask that she had read about. When the children go to the library to learn more about the mask, they discover that they have found an old Native American mask from the Hopi tribe. When the children learn there will be an Intertribal Pow-Wow at the park over the weekend, they plan...

The Aldens are visiting a real dinosaur dig in Montana, in an area full of fossils and caves! But the bones of a rare dinosaur have gone missing, and when the children begin to search for clues they hear strange noises in the caves and discover mysterious tracks! Why are bones disappearing? And could there be a real-life dinosaur on the loose?