Boxcar Children Books in Order

The Aldens visit Fran in Wisconsin, where an old family ghost seems to have returned. A bell clangs after dark, and Violet hears ringing at night, prompting the children to investigate the strange disturbances around them.

The Aldens help Libby at Game Spot, a new shop in Crossroads Mall. Robberies at other stores and letters disappearing from a sign give the children clues to a mystery that threatens the fun of the opening.

Norah Eton believes valuable jewelry is hidden somewhere at Eton Place, and the Aldens come to help find it. Their search becomes more complicated when reports of a ghost add another mystery to the old property.

The Aldens visit an old Kansas inn with puzzling connections to two former guests. A photographer's single picture and a young stranger who arrived on an orphan train leave the children with secrets to investigate.

The Aldens volunteer at a medieval fair, where Benny serves as a page to the Silver Knight. When a valuable antique sword disappears, they investigate the performers before the fair leaves town with the mystery unsolved.

The Aldens visit Amy's lakeside retreat in Canada, where tourists hope to glimpse the legendary Ogopogo. A riddle may lead to treasure that could save her business, but strange happenings threaten the children's search for it.

The Aldens help a friend of Grandfather's build a giant yo-yo to break a world record. Missing plans and someone following them suggest sabotage, so the children investigate who wants to stop the project before its launch.

The Aldens help Greenfield's popular band prepare for a music festival that could catch a producer's attention. When the instruments disappear the day before the show, the children investigate the theft before the performance is ruined.

Mystery writer Gilbert Finch is due to speak at Greenfield's library, but he fails to appear at the train station. The Aldens investigate his disappearance before a rival author takes his place at the event.

Watch discovers a box containing a note that introduces the Aldens to geocaching. They join a club and search Greenfield for hidden boxes, but a suspected thief turns their new treasure-hunting hobby into a mystery.

The Aldens visit Aunt Jane in Elmford and attend rehearsals at the Trap-Door Theater. Strange events center on the seat once occupied by its benefactor, leaving the children to investigate whether a ghost is disrupting the show.

On vacation in Seattle, Benny discovers a riddle under a diner table. The Aldens follow a chain of puzzles through the city, trying to work out who planted the clues and where the final answer will lead.

The Aldens find an old Hopi mask while preparing for a yard sale and plan to return it to its rightful owners. When it is stolen, they must recover it before the weekend's intertribal gathering.

The Aldens spend a week helping at a rescue ranch, where Jessie grows fond of a horse named Dragon. When horses disappear from the pasture, the children investigate what is happening to the animals in its care.

The Aldens visit a friend's drive-in theater and enjoy movies under the stars. Disruptive pranks, employees keeping secrets and a ghost seen on the empty grounds leave the children investigating what is troubling the old theater.

The Aldens enter a radio station's detective contest, hoping to win a gift for Mrs. MacGregor. Riddles lead them across Greenfield, but false clues suggest another contestant is trying to keep them from reaching the prize.

The Aldens help a local restaurant owner tend a garden, watering and weeding the growing food. When plants seem to change positions, the children investigate why their carefully tended vegetables are moving around without explanation.

The Aldens enter Watch in a contest that could bring their dog fame and fortune. Repeated mishaps threaten his chances, and the children investigate the trouble while trying to keep their canine contestant in the running.

The Aldens enroll Watch in a new dog obedience class, but another owner's Dalmatian disappears. When a second dog goes missing, they investigate the instructor and other customers to discover whether someone is stealing the pets.

An old wedding photograph and a riddle draw the Aldens into a neighbor's elaborate spy game. As they follow clues toward hidden treasure, puzzling connections make them question who devised the game and what lies behind it.

After meeting vampire novelist Mr. Hudson, the Aldens hear rumors of a real vampire haunting the cemetery behind his home. They investigate the frightening sightings, suspecting someone has revived the legend to scare people away.

The Aldens compete in a televised clue hunt around Philadelphia while a camera crew records their progress. Wrong directions and suspicious interference threaten their chances, turning the game into an investigation of who wants their team to fail.

Mama Tova's cupcakes draw long lines in Greenfield, but a break-in puts her secret recipe at risk. The Aldens follow the evidence to a cupcake contest, hoping to identify the thief before the recipe is lost.

The Aldens visit a New England farm known for pumpkins and hayrides. A figure with a glowing pumpkin head begins warning visitors away, threatening the autumn festivities and giving the children a frightening mystery to investigate.

Helping at Cogwheel Stadium during the Clayton Cogs' pennant race, the Aldens notice opposing batters seem to know each pitch. They search for someone stealing the pitcher's signals before the spying costs the home team its chance.

A spring visit to the zoo brings the Aldens into a children's photography contest with a cash prize. When a camera disappears, they must investigate the missing equipment amid the excitement over newborn animals and the competition.

The Aldens enjoy volunteering at Greenfield's recycling center and restoring useful objects found there. Break-ins and vandalism disrupt the work, leading them to investigate why someone would deliberately damage a place devoted to rescuing discarded things.

The Aldens help a food pantry prepare a free Thanksgiving dinner for Greenfield. Moved signs are troubling enough, but when the turkey disappears, they must find the culprit before the town's holiday meal is ruined.

At Winding River Lodge, the Aldens hear tales of a zombie haunting the nearby woods. As disturbing evidence appears, they enlist a reporter and local residents to determine whether the legend conceals a very different explanation.

The Aldens tend Mr. Yee's vegetable plot while his broken arm heals. Missing produce and damaged plots reveal trouble across the community garden, and the children investigate who is undermining the gardeners' hard work.

Visiting the New Jersey shore, the Aldens help a family friend at a newly purchased amusement pier. Rumors about unsafe rides and a missing haunted-house figure make them suspect someone is trying to spoil the business.

While training Watch as a search-and-rescue dog in Oregon, the Aldens discover a backpack filled with jewelry that fell from a plane. Trying to return the valuables draws them further into questions about the strange discovery.

A shortcut through Greenfield Cemetery introduces the Aldens to a superstition about leaving gifts for a ghost. They investigate who benefits from the tradition and whether threats of bad luck are being used to frighten visitors.

At Grandfather's old university, the Aldens hear that rooftop gargoyles will defend a library scheduled for demolition. When the stone creatures appear in unexpected places, they seek the explanation behind sightings that are terrifying the campus.

Jessie's teammate Kayla earns a chance to become a mascot at a soccer tournament in Brazil. An anonymous letter challenges her right to go, and the Aldens investigate who is trying to damage her reputation.

The Aldens visit a mountain town for a snowboarding competition and look forward to winter sports. A stolen snowboard involving a star athlete interrupts the fun, drawing them into an investigation amid tensions over the town's future.

The Aldens visit Wildcat Crossing, a recreated frontier town with a Wild West show. Disappearing horses and disruptive pranks threaten the performances, so the children search for the person turning the cowboy attraction into a troubled operation.

A vacation at the Calgary Stampede gives the Aldens parades, performances, and a taste of Canada's cowboy traditions. When an important piece of jewelry disappears, they investigate the theft before it disrupts the festival's big show.

Violet hopes to meet pop star Madlynn Rose at a television talent-show audition in Silver City Mall. When the celebrity vanishes before the event begins, the Aldens search for clues to her disappearance among the crowds.

At a dinosaur excavation in Montana, the Aldens discover that rare bones have gone missing. Strange sounds in nearby caves and unexplained tracks deepen the mystery, leaving them to investigate both the thefts and rumors of a living dinosaur.

The Aldens visit Sleepy Hollow, where a friend's ghost-tour business is threatened by a strange rider throwing frightening pumpkins. With the famous headless horseman legend looming over the town, they investigate who is behind the attacks.

The Aldens volunteer to restore an abandoned school in Silver City as an arts center. Doors lock unexpectedly and mysterious chalkboard messages appear, frightening other helpers and prompting the children to uncover what is disrupting the project.

The Aldens meet Walter, a cat famous for internet videos who has inherited a million dollars. As belongings vanish from his house, they investigate whether anger over the owner's will has made the celebrity pet a target.

The Aldens help Cousin Alice run for mayor, but campaign posters for her and her opponent are vandalized. A third candidate's posters then appear, although nobody has met him, giving the children an election mystery to unravel.

Staying at a castle hotel in Ireland, the Aldens encounter a superstitious caretaker and a nighttime figure carrying a lantern. Rumors of a banshee raise the stakes as they investigate the secret hidden within the old building.

Visiting friends for a Day of the Dead celebration, the Aldens enjoy learning about the holiday and helping with preparations. Mysterious disruptions threaten the event, and they must discover what is happening before the festivities are spoiled.

The Aldens help at a Greenfield doughnut shop as a new competitor opens across town. When the rival's products resemble familiar favorites, they investigate whether coincidence or stolen recipes explains the unsettling similarities between the businesses.

The Aldens visit a town preparing for its harvest festival, but rumors about a werewolf and the harvest moon frighten visitors away. They investigate the source of the legend before fear overwhelms the autumn celebration.

Henry and Jessie's robotics team prepares for an important competition, then its robot is stolen. The Aldens combine their knowledge of technology with detective work to find the culprit and protect the team's chance to compete.

An apartment building owner in Silver City believes in black cats, broken mirrors, and unlucky numbers. Strange events on the thirteenth floor make the Aldens investigate whether superstition or someone's actions explain the trouble in the building.

A century-old time capsule contains a journal that sends the Aldens searching Greenfield for lost treasure. They must identify its writer and connect historical clues, wondering whether enough evidence has survived to finish the hunt.

A severe storm knocks out the power and leaves the Aldens with a new mystery. Without electricity or internet access, the children must rely on direct observation and old-fashioned detective work to put the clues together.

During spring break, the Aldens help protect endangered sea turtles by marking nests so the eggs can hatch safely. When someone digs up eggs without permission, they investigate the threat to the animals they are trying to save.

The Aldens attend a summer camp where they learn primitive survival skills and explore the wilderness. When strange incidents disrupt the camp, they turn from outdoor lessons to solving the mystery behind the trouble.

Jessie tests a local creek for pollution, hoping her science fair project will help the community. When problems disrupt her experiment, she and her siblings investigate whether someone is interfering with her work.

A shopkeeper has lost his memory after an accident, but someone from his past still holds a grudge. The Aldens investigate his forgotten history, hoping to understand the trouble surrounding a man who cannot explain it.

The Aldens enjoy solving puzzles in a Halloween escape room until eerie incidents begin frightening visitors away. Their game becomes a real investigation as they try to uncover what is happening behind the scares.

The Aldens help harvest honey at a farm owned by Grandfather's friend and enjoy learning about bees. When repeated mishaps threaten the harvest, they investigate whether someone is deliberately disrupting the work.

Jessie and Benny enter Greenfield's baking competition for children, but mixed-up ingredients and a power failure threaten the event. The Aldens investigate whether these problems are accidents or someone's attempt to stop the contest.

Henry learns tricks from the Amazing Arthur and prepares for the Greenfield Magic Shop's annual show. When his teacher disappears, the Aldens must determine whether they are witnessing another trick or a genuine mystery.

The Aldens volunteer at a rehabilitation center for wild birds, where suspicious incidents damage its reputation. They investigate possible sabotage, hoping to protect the injured raptors and prevent the center from closing.