Boxcar Children Books in Order

Orphaned siblings Henry, Jessie, Violet and Benny want to stay together rather than depend on unfamiliar adults. Finding an abandoned boxcar in the woods gives them a home, but building a life on their own brings unexpected challenges.

Young movie star Tate Radison hides in Greenfield while filming, hoping to escape a string of apparent bad luck. When further mishaps threaten his career and someone reveals his whereabouts, the Aldens investigate who is targeting him.

The Alden children spend their summer exploring Grandfather's island with help from Joe, its friendly handyman. Their discoveries suggest that both the island and their new companion hold secrets, turning an outdoor holiday into a mystery.

An old yellow house on Surprise Island has been linked to a man's unexplained disappearance for years. When the Alden children uncover a long-lost clue, they begin investigating what happened and why the mystery remained unsolved.

The Aldens spend summer at Aunt Jane's ranch, a beautiful property overshadowed by her quarrel with their grandfather. Exploring the land leads to a surprising discovery that might help them understand the ranch and mend their family relationships.

Returning to Mystery Ranch, the Aldens are delighted to find their friend Mike living in nearby Yellow Sands. When a house fire is blamed on him, they search for evidence to identify the real person responsible.

Grandfather takes the Aldens to a South Seas island that is supposed to be deserted. Signs of another person's presence turn their exploration into an investigation, as the children try to determine whether a castaway is hiding there.

A stay in a lighthouse on the New England coast brings the Aldens more than seaside scenery. A mysterious woman, nighttime disturbances and their dog Watch's growling persuade the children to investigate what happens after dark.

Visiting the farmhouse where Grandfather and Aunt Jane grew up, the Aldens hear unsettling suggestions from people nearby. Their investigation uncovers hidden parts of the property's history, leading them back toward secrets from the Revolutionary War.

A rockslide leaves the Aldens stranded on Old Flat Top, waiting for someone to rescue them. The discovery of a newly opened cave gives the children another puzzle to explore, with a possible connection to legendary treasure.

The Aldens visit Port Elizabeth, a fishing village their friend Max considers uneventful. A man snooping around the local library changes that impression, drawing the children into an investigation that proves the town has secrets of its own.

A train journey gives the Aldens a mystery when people at successive stops recognize their unusual caboose. As comments about Number 777 accumulate, the children begin piecing together the hidden history of the car carrying them.

The Aldens spend summer traveling by houseboat, but a black car keeps appearing wherever they dock. Suspecting someone is following them, the children investigate what their pursuer could want and whether something aboard explains the attention.

A sudden storm traps the Aldens in a mountain cabin, where strange nighttime noises interrupt their cozy retreat. A coded message carved into a closet door offers a clue, and the children try to decipher its meaning.

The Aldens build a tree house with their new neighbors and notice an unexplained window in the neighboring home. Nobody seems to know about it, prompting the children to investigate whether the old house conceals a secret.

An overnight bicycle trip to Aunt Jane's is interrupted by a rainstorm, forcing the Aldens into an abandoned farmhouse. Their shelter becomes the setting for an unexpected mystery, giving them something to investigate while the storm continues.

Benny finds a valuable gold locket at the beach and tries to return it to its owner. The search draws the Aldens toward unusual visitors and mysterious Miss Smith, who lives in the nearby Tower House.

A journal concealed behind a guest-room wall sends the Aldens searching for a valuable coin collection. To follow its clues, the children must also learn what happened to the woman who wrote it and understand her message.

A storm interrupts the Aldens' bus journey to a science and hobby fair, leaving them waiting at a station. Two puzzling boys, a polluted river and a suspicious manager turn the delay into a new investigation.

Benny and Henry take summer jobs at a department store, where an expensive vase vanishes and salespeople receive strange notes. Tampering with a jewelry display adds to the trouble, prompting Benny to uncover what is happening.

When Greenfield's animal shelter closes unexpectedly, the Aldens help look after the animals left behind. Discovering that many pets belonged to a missing woman gives them another task: finding their owner while securing homes for the animals.

Exploring an old library, the Aldens encounter a boy who needs their help and discover a valuable object. A stranger's interest in their find makes the situation more puzzling, drawing the siblings into a mystery within the building.

The Aldens and their new friend Beth start a helper service to raise money for Greenfield Hospital. Beth's unexplained absences and deliberate damage to their signs and bicycle tires leave the children searching for whoever is undermining their work.

A paddle-wheel trip down the Mississippi brings the Aldens to their friend Cap Lambert's cabin. Strange events on his property and flickering lights at night prompt the children to investigate whether the apparently haunted retreat hides another explanation.

Visiting Florida with Aunt Jane, the Aldens help restore her friend Kay's shabby motel rather than see it sold. Repeated sabotage threatens their work, forcing the children to investigate who wants the business to fail.

The Aldens visit cousins Joe and Alice near an amusement park with an old wooden carousel. When Benny notices broken equipment and damage to his favorite horse, the children investigate who is sabotaging the attraction and why.

The Aldens expect a relaxing camping trip, but loud nighttime music, a missing lantern and a threatening note spoil their plans. Their search for the person behind these disturbances becomes essential to saving the family vacation.

A Caribbean cruise takes a troubling turn when the ship's phone lines are disconnected and someone falsely reports a person overboard. The Aldens suspect deliberate attempts to delay the voyage and investigate the reason behind the disruptions.

While helping at a general store, the Aldens meet another young worker whose behavior puzzles them. Her nervousness and refusal to discuss her past prompt the children to investigate the secret she seems determined to keep.

The Aldens compete in skiing and snow-sculpture events at Snow Haven Lodge's winter carnival. Missing skis and damaged sculptures suggest someone wants to spoil the contest, sending the children searching for the person behind the sabotage.

A painting in Grandfather's attic shows the children's grandmother wearing a necklace stolen many years earlier. The Aldens decide to trace the missing jewelry, following clues that might reveal whether it has finally reappeared after all this time.

The Aldens visit a zoo owned by Grandfather's friend and discover switched signs, interrupted electricity and threats to the animals. To protect the creatures they have befriended, the children must identify whoever is causing the dangerous disruptions.

The Aldens help their cousins Joe and Alice restore a house rumored to be haunted. Though skeptical of the neighbors' stories, the children begin investigating when a mysterious singing voice comes from upstairs and challenges their confidence.

Helping restore an old castle as a museum, the Aldens encounter unexplained lights, strange music and faces that vanish from windows. The children investigate the unsettling events to discover what is hidden within the building's walls.

The Aldens attend Greenfield's first dog show, expecting a day of canine competitions. When a series of pranks disrupts the event, the children investigate who is causing trouble and why the show has become a target.

Working at Sunny Oaks Farm, the Aldens enjoy milking cows and making jam. A beautiful horse locked in the stables resembles a famous racehorse, leaving the children wondering why it is being kept out of sight.

Visiting a Navajo reservation, the Aldens hear about a lost village and begin uncovering artifacts. Their discoveries suggest the legend is true, but someone interferes with the excavation and seems determined to keep the village buried.

The Aldens help at the Piccolos' struggling pizzeria, where a broken oven and power problems threaten business. Fake coupons add to the confusion, convincing the children that someone may be deliberately trying to ruin the restaurant.

Canoeing and backpacking near Timberwolf Lake, the Aldens receive warnings to stay away. When they discover clues to a missing cache of stolen coins, their outdoor vacation becomes an investigation into the area's secrets.

Visiting Ragged Cove, Massachusetts, the Aldens discover the log of the Flying Cloud, a ship wrecked in 1869. The record draws them into an old maritime mystery involving a voyage supposedly brought to an end by mutiny.

At Florida's Camp Coral, the Aldens enjoy fishing, windsurfing and exploring the water. When they discover damage to a hidden coral reef, the children investigate who is harming it and why the destruction is happening.

The Aldens search Greenfield for a missing cat, expecting to help reunite a lost pet with its owner. A mysterious telephone call reveals that the cat was stolen, sending the children after a catnapper.

A New York hotel offers the Aldens a place to stay, but unexplained pranks spoil the visit. Disordered rooms, missing telephones and a swimming pool turned purple give the children several clues to investigate.

The Aldens take part in a production of The Wizard of Oz, with Benny and Watch among the performers. Sabotaged costumes and threatening notes suggest someone wants the show stopped, so the children investigate before opening night.

Helping at Mr. Brown's ice-cream parlor, the Aldens face angry customers and a competing ice-cream truck. When stock disappears overnight, the children investigate whether the shop's business troubles are connected to the mysterious thefts.

The Aldens help prepare the Dino World exhibit at Pickering Museum with Soo Lee. When dinosaur bones disappear, the children investigate who is sabotaging the display and why the museum's new attraction has become a target.

Visiting New Orleans, the Aldens help at a bookstore belonging to their grandfather's friend. When a beautiful book disappears, the children investigate the theft and look for clues among the shop's books and visitors.

Exploring Dragon's Mouth Cavern on a rock-hunting trip, the Aldens discover a secret cave. Their find raises questions about the place and the people who seem unwilling to welcome visitors, drawing the children into an underground mystery.

A hot-air balloon lands in the Aldens' yard, leading to an invitation to a balloon festival. When another balloon is released without passengers, the children investigate whether someone is deliberately causing trouble at the event.

The Aldens prepare their beloved boxcar for Greenfield's Founder's Day parade. When it disappears with Watch inside, the children must follow the clues to find both the stolen boxcar and their missing dog.

An orchestra's visit to Greenfield gives the Aldens a chance to meet musicians and learn about instruments. When an old, valuable piece of music is stolen, the children investigate the theft behind the musical celebrations.

The Aldens visit a guide-dog school, where Jason is helping train Ginger for Anna. When the dog disappears, the children investigate the theft and try to find Ginger before her training and future partnership are disrupted.

Visiting Mrs. Ashleigh on Sullivan's Island, the Aldens hear rumors of pirate treasure connected to her family. Suspicious activity complicates the search, while an approaching hurricane adds urgency to the mystery surrounding the hidden fortune.

An Arizona trip in a recreational vehicle introduces the Aldens to the legend of the Lost Dutchman Mine. When a prospector disappears, the children follow clues linking the missing man to the search for hidden gold.

Preparing for Greenfield's Winter Festival, the Aldens help clean a statue of a Revolutionary War hero. A photograph taken by Violet reveals a mysterious message, drawing the children into an investigation connected to the monument.

Traveling by train with Aunt Jane from Boston to San Francisco, the Aldens meet an art student whose portfolio disappears. They search for the missing work while trying to identify the thief before the journey ends.

The Aldens try to save a historic firehouse threatened with demolition. Missing objects and false alarms complicate their efforts, while a mysterious man and a blue notebook offer clues to the trouble surrounding the building.

Visiting Yellowstone, the Aldens hear a legend about miners' gold and the Lost Cabin Trail. Bear activity closes the trail, and a disappearing map gives the children another puzzle to investigate during their park adventure.

A Texas vacation brings the Aldens to the Alamo, where they get roles in a movie. Trouble on the production and the theft of a valuable ring draw the children into a mystery behind the scenes.

The Aldens visit San Francisco and discover that someone is interfering with Uncle Andy's fishing business. Cut nets and other suspicious incidents at Fisherman's Wharf prompt the children to investigate who is responsible for the sabotage.

Accompanying Grandfather to an astronomy convention at Mountvale College, the Aldens hear about a student's important discovery. When research information disappears along with another student, the children investigate a mystery amid telescopes and scientific discussions.

The Aldens join a soccer league, excited to play together. Deflated balls, damaged goalie gloves and a player locked in a changing room suggest sabotage, leaving the children to investigate who is trying to spoil the season.

Visiting their cousin Mary's pineapple plantation in Hawaii, the Aldens hear about a mysterious black pearl. Nobody will explain its legend, and stolen diving maps give the children another puzzle to investigate during their island holiday.

A jewelry theft at an antique store seems like an ordinary burglary until Benny's favorite cereal box disappears from a house. The Aldens investigate what a missing breakfast box could have to do with stolen valuables.

The Aldens learn that their cousin Althea may lose her home at Peacock Hall. Hoping to help her keep it, they investigate rumors of hidden treasure and uncover more puzzles around the house.

Rumors of a monster are driving visitors away from Lake Lucille in the Adirondacks. When the Aldens hear strange noises and discover unusual footprints, they investigate whether something really is lurking near the water.

The Aldens visit an apple orchard belonging to Grandfather's friend Seymour Curtis, where rumors suggest the farmhouse is haunted. Missing antiques and the discovery of secret passages give the children plenty to investigate around the property.

Exploring the Florida Everglades with Grandfather, the Aldens learn that a park ranger has disappeared. Their search for answers draws them into a mystery involving a panther and the unfamiliar landscape around them.

The Aldens join a community basketball league coached by famous players Buzz and Tipper Nettleton. When Tipper's valuable trophy disappears, the children turn their attention from practicing on the court to investigating the theft.

Grandfather's newly purchased land in the Rockies includes a ghost town. The Aldens dismiss the stories of hauntings until a strange figure appears on Main Street and a woman at a rundown motel raises more questions.

Katya, a Russian gymnast visiting Greenfield for a competition, stays with the Aldens. Suspicious incidents threaten her chances of winning, and the children investigate possible sabotage while trying to understand the secrets their guest is keeping.

Helping at Penny's Emporium in the Hope Harbor mall should be fun for the Aldens. Instead, workers seem unhappy about their presence and merchandise disappears, giving the children a mystery among the shops.

While visiting a beach resort, Benny finds a bottle containing part of a pirate's map. The Aldens follow clues to a rumored buried treasure, but they aren't the only people interested in the gold.

The Aldens join Grandfather for a three-day bicycle race with overnight camping. Misleading road signs, collapsing tents and Henry's repeated flat tires make the children wonder whether someone is deliberately interfering with the event.

Jessie joins a girls' hockey team coached by the children's favorite star, Kevin Reynolds. As plans develop for a new rink in Greenfield, missing equipment and damaged blueprints lead the Aldens to suspect sabotage.

Mrs. McGregor's sister may have to sell their childhood home, now a bed-and-breakfast called the Crooked House. The Aldens investigate a riddle and rumors of hidden treasure, hoping to help save the property.

A rainy day spent playing Ringmaster leads to an invitation to test its unreleased sequel. The Aldens become suspicious when characters in the computer game mention real people and places from their hometown of Greenfield.

The Aldens start a party-planning business in Greenfield, but a safe is emptied during an event. When another theft occurs at a birthday party, the children investigate whether their celebrations are attracting the same thief.

Vacationing on North Carolina's Outer Banks, the Aldens promise Grandfather a break from mysteries. Benny's sighting of a stallion on the beach draws them toward a local ghost-horse legend and the area's wild ponies.

The Aldens visit a zoo where their friend Lindsey works and learn that two rare ferrets have been stolen. When California condors also disappear, the children investigate whether someone with access to the animals is responsible.

While visiting Aunt Jane, the Aldens investigate strange incidents at the Wagner Farmhouse museum. Signs disappear and other disruptions suggest sabotage, but stories about a former owner's mischievous ghost complicate the children's search for answers.

Helping a volunteer group repair the Bugbee Mansion, the Aldens discover hidden rooms and hear odd noises inside its walls. A secret staircase adds to the puzzle as they investigate a thief's connection to the house.

Grandfather's college reunion brings the Aldens to Goldwin University, where a clock tower has a mysterious reputation. The children investigate stories about its past and a valuable object said to be hidden at the school.

In Elbow Bend, Alabama, the Aldens hear a legend about a ghostly dog whose midnight howls warn of danger. When local dogs begin howling together, the children investigate whether the frightening story explains what's happening.

The Aldens look forward to camp activities and an Olympic competition with new friends. Missing luggage, a vanished flag and another team's suspicious use of Jessie's ideas make them wonder whether somebody is cheating.

The Aldens help fix up a mansion bought by Grandfather's friend, whose previous owner studied bones. Skeletons inside the house, rumors of them walking and missing valuable statues give the children a puzzling investigation.

The Aldens help prepare an Egyptian exhibit at the Greenfield Museum. When a four-thousand-year-old mummy arrives and disasters follow, the children investigate whether an ancient curse is responsible or someone has a more ordinary explanation.

An eccentric millionaire offers a prize to whoever solves his riddles first. When their friend Sam receives a puzzling letter, the Aldens help follow its clues and work out who might claim the promised money.

The Aldens enter a gemstone competition at Ruby Hollow Gem Mine, where Jessie finds a ruby. When her discovery disappears before she can submit it, the children search for the person who took their promising entry.

The Aldens join a camping trip on Blizzard Mountain, where stories of buried treasure add excitement. Missing supplies, strange noises and a missing group member turn their outdoor adventure into a mystery they need to solve.

A visit to Vermont brings the Aldens to the annual Bear Jamboree, where stuffed bears are the main attraction. When a rare bear disappears, the children look for clues among the toys and festivities to catch a thief.

The Aldens examine a rare Captain Fantastic comic book and find a suspicious note connected to its creator's signature. When the comic disappears, the children must untangle the clues and find out who wanted it gone.

The Aldens help at Greenfield's Ice Cream Barn and learn about making different flavors. Trouble at the shop suggests someone wants it closed, so the children investigate who is threatening a business they have come to enjoy.

The Aldens attend an invention convention at a famous inventor's home, surrounded by unusual clocks. Mysterious tapping at midnight interrupts the gathering, leaving the children to investigate strange sounds while inventors compete to show their creations.

Benny finds a handwritten riddle in a fortune cookie, and the Aldens follow its clues. A trail of further cookies keeps them guessing as they try to discover who created the puzzle and where it leads.

The Aldens take part in a live mystery broadcast at an AM radio station. When a supposed ghost disrupts the show and frightens listeners away, the children investigate who or what is interfering with the production.

A Greenfield art contest draws the Aldens into a mystery involving paintings at a gallery. A troubling note suggests that artwork may have been stolen or replaced with a fake, and the children investigate the warning.

The Aldens visit an Iowa farm during the Corn King Days festival. When someone damages the corn maze at night, the children investigate the vandalism before the trouble forces a favorite festival attraction to shut down.

The Aldens help their neighbor Lina search her attic for a treasure she believes is hidden there. Other people are looking too, turning the hunt into a race to discover what the house may contain.

Benny notices a strange light in the old boxcar the Aldens use as a backyard playhouse. The children investigate clues connected with its past as they try to explain whether their familiar refuge could be haunted.