When Mrs. MacGregor introduces the Aldens to the local recycling center, they bring home lots of great stuff, including unused notebooks and fun pinata. Mrs. MacGregor was right, you can find treasure in junk. When a series of break-ins and vandalization hits the center, the Alden kids are there to help solve the mystery!

The Aldens are on their first trip to Chicago—the Windy City—and from Wrigley Field to the Sears Tower to Grant Park, there is so much to see. However, when they are given a series of clues in rhyme, they find themselves in the middle of two mysteries.

While at the Winding River Lodge, the Aldens hear about a zombie living in the surrounding forest! As the signs of zombie attacks start to mount, the Boxcar Children recruit the help of a reporter and some locals. But is someone hiding information? Or should the Boxcar Children really be afraid of things that go bump in the night?

The Aldens find themselves right in the middle of an Iowa cornfield and a brand new mystery! The children visit a farm that’s famous for its wonderful corn maze. Every year the maze is open to visitors, and there’s even a festival! But who is damaging the maze at night? Can the Boxcar Children catch the culprit and save the festival?

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?

A hip new doughnut shop known for its bizarre recipes is opening up in Greenfield. At first, the owners of the other doughnut shop in town, Delilah's, aren't worried. But when the new shop starts making doughnuts that look just like some of Delilah's greatest hits, the Boxcar Children must figure out if it's just a coincidence or if someone from the new shop is stealing Delilah's recipes.

The Aldens investigate the incidents happening around their cousin's pineapple plantation in Hawaii.

The Ghost of the Chattering Bones *  * The Alden children knew there was a mystery at Eton Place, but they had no idea there would be a ghost there, too! A family friend believes there is a valuable piece of jewelry hidden on her property, but she only has one clue to help them find it. Will they find the treasure, or will the ghost of the Chattering Bones scare them away first?  The Creature in Ogopogo Lake *  * The Aldens are visiting Grandfather’s friend Abby in Peachland, Canada—home of the mysterious lake monster called Ogopogo. When the children learn that Abby must sell her resort unless she can attract more business, they decide to help. But someone or something is trying to get in their way. Can they save the resort?  The Vampire Mystery *  * Henry, Jessie, Violet, and Benny meet Mr. Hudson, a local author who is best known for his novel about a vampire. But rumors of a real vampire are going around town—a vampire who haunts the graveyard behind Mr. Hudson’s house! Since vampires don’t exist, the children soon realize that someone must be trying to scare people away! Who brought the old legend back to life—and why?

Henry, Jessie, Violet, and Benny used to live alone in a boxcar. Now they have a home with their grandfather, and they’re going to a teddy bear jamboree! When the Aldens visit Peggy and Doc Firmin’s sheep farm, they’re in for a teddy treats: a behind-the-scenes look at a real teddy bear workshop! Soon, the children are learning everything there is to know about teddy bears. From patching up old bears in the toy hospital to marching in the big bear parade, this vacation is stuffed full of bears! But the Aldens soon encounter an unbearable mystery: a very rare and valuable bear has disappeared from the toy hospital. Now its up to the children to track down the teddy thief!

The Aldens visit an old Kansas inn that’s full of secrets! Nobody knows why a famous photographer visited the inn just to take a single picture. And what about the other legendary guest—a heroic young stranger who’d come west on an “orphan train?” The children discover a long-lost riddle that just might solve all these mysteries—if only they can solve it!

The Boxcar Children are fixing up their boxcar for a parade. There's just one problem. Someone has stolen the boxcar...with their dog, Watch, in it! If they can only find the missing boxcar it will lead them to Watch.

While visiting Pikesville, New York, the Boxcar Children join the exciting last games of the season in a strange old ballpark. The Pikesville Half Moons are playing the Eagles, but the Eagles seem to be hitting far too many home runs.

Jessie’s soccer teammate Kayla is such a talented player that she’s invited to be the mascot at an International soccer tournament in Brazil! But then an anonymous letter arrives insisting she doesn’t deserve to have the honor. Who is trying to ruin Kayla’s reputation? The Boxcar Children must find out!

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!

The Aldens try to find a missing magician.Henry is learning to perform magic tricks from The Amazing Arthur and is excited to participate in Greenfield Magic Shop's annual magic show. But then The Amazing Arthur goes missing. Is his disappearance part of a new magic trick or a mystery?