When a calico cat appears at Grandfather's, the children look for the founder of the town's animal shelter.

When Grandfather’s friend bought Skeleton Point, she invited the Alden children to help her fix it up. But this empty mansion is even spookier than it looks. The man who used to live there studied bones—and the house it filled with skeletons! Then the mansions valuable statues begin to disappear. Could the Skeleton Point ghost be causing mischief?

The Alden children find the ship log of the suspicious 1869 shipwreck of the Flying Cloud while vacationing in a Massachusetts seaport town.

Henry, Jessie, Violet, and Benny used to live alone in a boxcar. Now they have a home with their grandfather, and an exciting new exhibit to explore—from behind the scenes—at their local zoo. But disaster strikes when a pair of rare ferrets is stolen. The two huge California condors are the thief’s next target. The Aldens quickly decide that the animals are being taken by someone that works in the zoo. But how do they stop a thief who has keys to all the cages? The Boxcar Children are determined to solve the mystery before the zoo looses any more rare animals!

One stormy afternoon, the Aldens take a shortcut through the Greenfield Cemetery and discover a strange local superstition! According to legend, it's good luck to leave presents in a certain spot in the cemetery--and bad luck to anyone who doesn't. But since there's no such thing as ghosts, there must be a reason for this weird tradition. The Boxcar Children are determined to find out what it is.

In this all-new very special miniseries, the Aldens have been recruited by a secret society to return lost artifacts and treasures to their rightful locations—all around the world! The Aldens follow a clue to Beijing, China, where they uncover their next mission—to return a mysterious clay artifact to its rightful owner. Their journey leads them to a scenic section of the Great Wall, but a thief threatens to ruin their trip and endanger their precious cargo. The Aldens' next clue brings them to an elephant reserve in Thailand, but when their contact acts suspiciously, they worry someone close to them may be working for the other side. Who can the Aldens trust to help them return the remaining artifacts to their rightful owners?

The Aldens have joined Dr. Iris Perez as she investigates legendary creatures around the world. In this adventure, the children investigate what might be living in the deep trench off the coast of Puerto Rico. From manatees to mermaids to sea monsters, creatures of the sea have been attracting tourists to the area for years. But when a man on a nearby island goes missing, it's up to the Aldens to sort out fact from fiction.

On a rafting trip in the Pacific Northwest, the Aldens come across the story of a mysterious man who disappeared into the wilderness many years ago. Can you help the Aldens find out where the man went—and what happened to the treasure he took with him? In this interactive, choose-your-path mystery, readers will make decisions that will help the Boxcar Children crack the case during their white-water adventure.

Henry, Jessie, Violet, and Benny once lived on their own in a boxcar . . . It’s spring, and all the baby animals are being born—a perfect time to visit the zoo. The Aldens and their friends are taking pictures there for a photo contest. But when cameras go missing and a girl is accused of cheating, the Boxcar Children must find out just who is monkeying with the contest!

The Aldens are helping one of Grandfather's friends break a world record by building the world's largest yo-yo! But someone follows them, and then the plans for the yo-yo turn up missing. Someone is trying to sabotage the yo-yo before it's launched!

Henry, Jessie, Violet, and Benny used to live alone in a boxcar. Now they have a home with their grandfather, and they are about to discover a mystery in a fortune cookie! When the Aldens go to dinner at a local Chinese restaurant, Benny can’t wait for his favorite part of the meal: dessert. He loves breaking open the delicious fortune cookies and reading the messages inside. But when Benny opens his cookie, he is in for a surprise. Instead of a fortune, Benny’s cookie contains a handwritten riddle! One cookie leads to another, and the Aldens soon realize they’ve bitten into another mystery. Who is leaving the Aldens the mysterious cookie clues … and why?

The Aldens chart a course for their next adventure – Australia and Antarctica! As the children tour the famed Sydney Opera House, their next puzzle – and its key – falls right into their laps. They need to find the rightful owner of a rare Australian coin. Using their knowledge about Australia, the Aldens find the coin’s owner, but a saboteur is again hot on their heels and nearly spoils their hard work. Next up, the Aldens travel to frigid Antarctica, where they need to return an artifact to the hut Shackleton used on his expeditions to the South Pole. The trip is a success, but when they Aldens return, they learn the identity of the person who has been trying to ruin their plans. Will the saboteur keep them from returning the seventh and final artifact.

Back in the days of the gold fever, one of the Aldens’ ancestors was part of the Four Rock Miners, a group that met annually in Skagway, Alaska. Now the Aldens are keeping the tradition alive by attending a reunion with the descendants of the other miners. But when the raven statue and scrapbook that have belonged to the group for more than a century go missing, it looks like the Aldens have stumbled onto another case!

A camp-out trip is almost spoiled by loud music and the disappearance of a lantern—and Grandfather.