"The Big Three plus One," the best private eye, ear, nose, and mouth in the world, search for Mrs. Piper's lost pearl.

On their vacation to Hawaii, the Aldens learn about the curse of the black pearl. But whenever they ask to hear the whole story, no one will talk about it. Can the Boxcar Children find out the secret behind the curse?

When the Aldens learn about a burglary at an antique store, they set out to find who stole some jewelry. But then the thief strikes again—at their own house! This time, Benny's favorite cereal has been taken! Why would a jewel thief take a cereal box?

Boxcar Children #52.

Four brave siblings were searching for a home – and found a life of adventure! Join the Boxcar Children as they investigate the mystery of Surprise Island in the second book in this illustrated chapter book series beloved by generations of readers. The Aldens spend the summer on Grandfather's island! Joe, the island's friendly handyman, helps them with anything they need, but as the children continue to explore their summer home, they realize there is more to the island—and to their new friend—than meets the eye. What started as a single story about the Alden Children has delighted readers for generations and sold more than 80 million books worldwide. Featuring timeless adventures, mystery, and suspense, The Boxcar Children® series continues to inspire children to learn, question, imagine, and grow.

The Aldens volunteer at the new recycling center in Greenfield.They find interesting objects that they take home and fix up. But after the Boxcar Children learn that the center has been vandalized, there's a mystery to dig through. Why would someone want to make a mess of all the junk?

The Big Three Plus One detective team searches for clues that will solve the mystery of Mrs. Piper's lost pearl.

The Alden children were searching for a home – and found a life of adventure! Beloved by generations of families, this illustrated chapter book series is full of wholesome excitement, danger, and mystery. There's going to be a free Thanksgiving dinner for the whole town of Greenfield--except the turkey is missing! The Aldens are helping out at a new food pantry, collecting donations and putting up signs. But someone keeps moving the signs, and when the main course for the big town dinner disappears, the Boxcar Children have a mystery to solve!

Four brave siblings were searching for a home – and found a life of adventure! Join the Boxcar Children as they set out on their own in the first book in this illustrated chapter book series beloved by generations of readers. Henry, Jessie, Violet, and Benny are brothers and sisters. They're orphans too, and the only way they can stay together is to make it on their own. When the children find an abandoned boxcar in the woods, they decide to call it home—and become the Boxcar Children! What started as a single story about the Alden Children has delighted readers for generations and sold more than 80 million books worldwide. Featuring timeless adventures, mystery, and suspense, The Boxcar Children® series continues to inspire children to learn, question, imagine, and grow.