Mildred A Wirt Books in Order

Nancy Drew suspects that her friend’s new guardians intend to steal the girl’s inheritance. Investigating their behavior leads her toward a deserted bungalow, where the effort to protect her friend becomes increasingly dangerous.

Strange music, shadows and nighttime noises make an old family mansion seem haunted. Nancy Drew investigates for her friend Helen while a warning about her father’s railroad case introduces another danger that may be connected.

Nancy Drew visits Lilac Inn as her friend Emily prepares for her wedding, but apparitions and stolen inheritance money disrupt the plans. Meanwhile, someone impersonating Nancy is forging her signature and creating trouble back home.

Wealthy Josiah Crowley’s fortune appears destined for the undeserving Topham family, despite promises to other relatives and friends. Nancy Drew searches for a missing will that could change the inheritance and help those he intended to remember.

Nancy, Bess and George stay at Red Gate Farm to help its struggling owners. Strange activities by tenants calling themselves a nature cult, together with a mysterious code and counterfeit money, draw Nancy into an investigation.

Nancy Drew visits an Arizona ranch where a phantom horse appears before destructive incidents. A legend involving an outlaw, his lost love and hidden treasure gives her a possible explanation for the threat to the ranch.

A mailbag disappears while its carrier visits the Drew home, threatening his career and pension. Nancy also receives a letter intended for another Nancy Drew, drawing her into a search for an heiress and a possible fraud.

After a roadside mansion catches fire, Nancy Drew finds a diary written in Swedish and sees someone fleeing the scene. The clue links a missing man to the blaze, raising questions about arson and a struggling family.

Madge Sterling arrives for a cruise with Enid Burnett and finds their yacht apparently deserted. Evidence of a struggle reveals that Enid’s father has been abducted, beginning a mystery involving an unusual ransom demand.

Anne Fairaday may lose her mortgaged home unless she finds her late father’s valuable formula for preventing rust. Madge Sterling helps search for its hiding place while a former assistant tries to obtain it himself.

A secret society’s initiation draws Madge Sterling and her friends toward the deserted Swenster mansion. Reports of a ghostly figure digging outside lead Madge to investigate old family secrets and a legend of hidden pearls.

A carrier pigeon brings Nancy Drew a puzzling message, while a doctor reports treating an elderly woman under suspicious circumstances. Clues point toward Larkspur Lane, where Nancy suspects wealthy people may be held against their will.

Nancy Drew meets a hundred-year-old man and a mistreated young waitress at a roadside inn. Questions about his fortune and the girl’s identity draw Nancy into a family dispute that threatens her friendships with Bess and George.

A ghostly boat, missing twins and two separated cousins draw Nancy Drew into a mystery beside a Maryland lake. Pudding Stone Lodge appears to conceal important secrets, and a broken locket offers another clue to follow.

A young man with lost memories mistakes Kay Tracey for his missing sister. Kay tries to restore his memory and locate the girl, but his reaction to a red scarf points toward a dangerous hidden story.

An unseen voice warns Kay Tracey and her friends away during a visit to Lost Lake. As strange incidents frighten vacationers, Kay investigates while helping an elderly man search for a long-lost family fortune.

Nancy Drew takes on a challenge that has baffled professional detectives: finding a fortune concealed in a hollow oak. An archaeological excavation in Illinois offers connections to the mystery and a new setting for her search.

Kay Tracey’s adopted friend Sissy learns that she could inherit a fortune if she proves her birth identity. An anonymous letter, destroyed records and a missing witness complicate Kay’s effort to uncover the truth.

When Mrs. Van Hutton refuses to sign a legal document, Kay Tracey suspects a man named Stannovi is influencing her. A warning to stop investigating deepens the mystery, while her school rival obstructs her search.

A young woman becomes involved in an aviation rivalry as two manufacturers compete to produce a winning aircraft design. The Reilly Cup Race brings their ambitions together, making the contest a test of their competing plans.

A girl, her brother and a friend explore an old mansion and discover a diary hidden in a trunk within its tunnels. The account carries them into the house’s history during the American Revolutionary War.

Nancy Drew investigates suspicious activities at a traveling animal show and becomes concerned for an abused young performer. An ivory elephant charm and a mysterious property lead her toward questions about the boy’s identity and safety.

A valuable Rembrandt disappears from an art exhibition after a young sculptor’s entry fails to win a prize. Penny Nichols believes the accused artist is innocent and investigates the theft and the mysterious Black Imp figurine.

Penny Nichols befriends Rosanna Winters, who has received a letter and key concerning an inherited estate. When they visit the property, rival claimants and a missing letter make Penny suspect that her new friend is being deceived.

A wave of automobile thefts interrupts Penny Nichols’s family vacation plans and soon affects her own roadster. With her detective father investigating, Penny and her friend Susan follow clues that suggest a larger criminal operation.

After Kay Tracey exposes a fraudulent medium, the woman threatens her with a curse. A bride-to-be then vanishes from a wealthy family’s estate, and a distinctive green cameo becomes an important clue in Kay’s search.

Louise Dana is mistaken for an escaped prisoner and pursued by a former reformatory warden. Seeking shelter with a local hermit draws Louise and her sister Jean into a mystery involving the missing girl and hidden secrets.

Kay Tracey joins the search for a kidnapped movie star and follows clues into a stolen-goods operation. Investigating the thieves’ hiding place puts her in danger, making escape another challenge alongside finding the missing actress.

Kay Tracey finds an abandoned baby beneath bushes at a lonely farm and tries to discover its identity. At the same time, her rival Ethel disappears, drawing Kay toward a scheming couple and a blackmail plot.

Pilot Jim Sherman and mechanic Shorty Dawes refuse a lucrative flight to Pinetop because of dangerous weather. Then Cleo Bowman asks for help reaching the same estate, insisting that her father has much to lose.

Louise and Jean Dana befriend a family after a plane crashes into their uncle’s ship. Discovering a box of possibly stolen money, they guard it from a thief while trying to identify its rightful owners.

Nancy Drew helps her father pursue an international ring of jewel thieves at a summer resort. A story about a ghost guarding a woodland footbridge draws her into another mystery that may connect with their investigation.

When their guardian is injured and the family home faces loss, Barbara, Ginger and Jimmie Gibson confront an uncertain future. Buying a used travel trailer offers an escape, but repeated break-ins turn their journey into a mystery.

A thief steals money Kay Tracey has been guarding, leaving her to recover the treasure and determine its owner. A ragged old man and a young woman’s wedding plans provide competing clues to the baffling case.

Carol Scott receives a strange jade stone after being mistaken for someone else at Mardi Gras. Another mistaken identity draws her into an elderly family’s affairs, where a lawyer’s interest in the stone raises suspicions.

Nancy Drew investigates a suspected swindle involving rare books and the theft of a marble statue that resembles her. Working undercover for an art dealer, she faces dangerous attempts to stop her from gathering evidence.

Louise and Jean Dana accompany their headmistress to a proposed summer camp at Moon Lake. The house seems haunted, and someone occupying a locked attic room emerges only at night, giving the sisters a new mystery.

Traveling west with their trailer, Barbara, Ginger and Jimmie Gibson visit a manufacturer who offers them sales work. He then joins their journey to investigate a phantom trailer near his sister’s home at Vermilion Cliffs.

Kay Tracey interrupts a robbery at the Crowley sisters’ house, raising questions about the valuables hidden there. Her investigation across nearby sand dunes brings clues about a missing young couple and other mysterious figures.

A staged snake attack leads Kay Tracey toward Moleson Mansion and a portrait that disappears and reappears. Questions about its subject, a missing heir and a valuable treasure place her against a group of determined thieves.

Sally buys a box of junk at a Chinatown auction and discovers a stolen golden Buddha inside. Its disappearance and a visit to a former schoolmate's estate draw her and Thelma toward a forbidden door and further danger.

Strangers greet Kay Tracey as if they know her, leaving her puzzled about a mysterious double. With Betty and Wilma's help, she follows the clues to an old mansion's sunken garden and a ghostly figure moving there.

Penny Nichols accompanies her detective father to Knob Hill for a quiet holiday. Their hoped-for retreat becomes an investigation when strange encounters and a man's abrupt departure suggest that the seemingly dull destination is hiding a mystery.

Penny Parker investigates a séance establishment while trying to help a friend whose doll shop is in difficulty. A sinister doll troubling an actress connects the cases, giving Penny and Louise another mystery to pursue.

Louise and Jean Dana trace a woman who disappeared from their uncle's ship to a strangely troubled house. When several people fall into prolonged unconsciousness there, the sisters investigate whether a poisonous herb explains the mysterious sleeping spells.

Nancy Drew investigates tapping sounds in a retired actress's locked house, where messages seem to arrive in Morse code. Stolen Persian cats and a dishonest estate administrator complicate her search for the intruder and the motive behind the disturbance.

Helping a friend apply for work leads Penny and Louise to a boarding house associated with unexplained disappearances. Meanwhile, a family's stolen houseboat presents another mystery, drawing Penny into troubles on both land and the river.

After finding her friend Rosa bound and gagged, Kay Tracey searches for the stolen Stradivarius violin that belonged to Rosa's father. A numbered key leads her toward an antique dealer and increasingly dangerous attempts to recover the instrument.

At a ski resort, Penny investigates efforts to drive a small lodge out of business while her father's newspaper faces damaging accusations. A rival hotel's restricted room and coded messages suggest a connection she must uncover.

Covering a wedding at an estate surrounded by a moat, Penny Parker finds a story far stranger than a society celebration. The groom fails to appear, and a missing tax evader gives her a second disappearance to investigate.

Motherless Linda Calvert lives in Ohio, where her father owns a golf course and she enjoys playing golf. A summer visit to relatives in Iowa puts the self-absorbed girl in circumstances that challenge her outlook.

A brass-bound trunk is mistakenly delivered to Nancy Drew's cabin aboard an ocean liner bound for New York. The unexpected luggage provides the first clue to jewel thieves traveling on the ship, turning her voyage into an investigation.

Gail Landreth and naturalist Henry Allan discover a numbered comedy-mask pin while studying birds near the Everglades. The clue leads them toward an abandoned hotel, a disabled steamer and a mysterious organization called the Laughing Mask.

Searching for missing Emily Dodd in Florida, Kay Tracey investigates an old fort and a tower on Jasper Jackson's property. His hostility toward Emily's mother and strange events at the estate raise suspicions about his connection to the disappearance.

During a library fire, Kay Tracey spots thieves taking valuable art and follows their truck. Investigating the thefts leads her toward a fire-worshipping cult, while suspicious evidence against an elusive man and Ethel's interference complicate the case.

Jean and Louise meet a former servant who hints at a secret she has kept for her employer. When he questions the girls and later disappears, suspicious efforts to seize the servant's belongings deepen their investigation.

A curious silk ladder in a curio shop catches Penny Parker's attention just as a friend's inheritance raises new questions. Car trouble and unexpected debt complicate her efforts to investigate the shadowy people connected with the unusual clue.

Nancy and Carson Drew investigate sabotage accusations against a family friend after explosive oranges reach Cape Kennedy's Space Center. An eerie mansion housing wild animals draws Nancy's attention as clues point toward a scheme against the space program.

Kay learns that Miss Janey has inherited a valuable chemical formula, but its papers have vanished and someone else claims the discovery. Proving the theft becomes essential to protecting her inheritance while Kay follows the missing research.

Fires, thefts and frightening nighttime disturbances plague Owl's Hole, a summer resort Kay Tracey is asked to investigate. A single footprint begins her search, but fleeing suspects and Ethel's interference threaten her attempts to trap the troublemaker.

Jean and Louise's Christmas visit to Highfort becomes a property dispute when several people claim ownership and their host disappears. A stolen jeweled star and a nighttime intruder add further puzzles as the sisters try to establish the truth.

On a riverboat outing, Penny and Louise notice suspicious passengers and a young woman's stolen purse. A discarded package offers further clues, pulling Penny toward a mystery while she pursues her ambitions as a newspaper reporter.

A town clock strikes thirteen, catching Penny Parker's attention on a late-night trip from her father's newsroom. Strange telegrams criticizing the newspaper and a farm fire give the young reporter reason to suspect more than a faulty mechanism.

Jean and Louise rescue Jasper Conway and important papers from a fire started by Oliver Gormly. Refusing to surrender the documents makes the sisters his enemies, and they investigate a swindling operation whose victims include an uncooperative schoolmate.

Kay Tracey spots an intruder prying open a staircase step in the deserted Greely mansion. The hidden space presents a puzzle that also involves her lawyer cousin's efforts to sell the estate and her school rival's meddling.

Despite warnings that their houseboat is jinxed, Kay and the Worth twins embark on a river holiday. Armed men aboard a neighboring boat and coded signals to shore suggest a connection with a series of unsolved jewel thefts.

Strange events at a ship-shaped cottage lead Nancy Drew toward an island's buried treasure. She has only half a map and must locate the missing brother holding the rest while rival treasure seekers try to stop her.

Penny and her friends explore the old Marborough mansion and its wishing well, bringing a lonely classmate along. The outing opens questions about the estate's past, suspicious visitors and the connections linking their new friend to its mysteries.

After a car accident, Penny's father is supposedly taken to a hospital but never arrives. She takes responsibility for his newspaper while searching for him, and a clue at an abandoned mansion offers a troubling lead.

Penny and Louise's river outing turns dangerous when their boat capsizes as they try to retrieve a bottle. News of a dynamited bridge draws Penny into a sabotage investigation, while a man preparing for a flood presents another puzzle.

An exiled former queen asks Nancy Drew to locate her missing grandson, offering only a photograph taken when he was four. A priceless heirloom provides another clue as Nancy searches for the prince and confronts questions of identity.

A pottery teacher asks Jean and Louise to find her missing fiancé, an FBI agent whose boat has washed ashore. A secretive hermit and unexplained cries near a cliff complicate their efforts to discover whether he survived.

A reward notice sends Penny and Louise to investigate a supposed Headless Horseman in Red Valley. Strange residents and trouble surrounding a wealthy property owner turn her search for a newspaper story into a mystery of community secrets.

Nancy searches the March family's cluttered attic for unpublished music that could save them from financial ruin. Letters offer obscure clues, but ruthless thieves want the manuscripts too and place dangerous obstacles between her and the missing compositions.

Arlene Sherwood disappears after a psychic's ominous prediction, and her father soon vanishes too. Jean and Louise suspect abduction when a message demands valuable drawings be left in an old well, prompting a risky attempt to outwit the kidnappers.

Penny's camping holiday is complicated by a widow who has charmed her father and joined their trip. A mysterious radio broadcast suggests criminal activity, leaving Penny to untangle genuine danger from her suspicions about the unwanted companion.

Visiting Shadow Island with her father, Penny Parker learns of thefts at an airplane factory. A sailing rivalry and a stormy excursion complicate her stay as she searches for the truth behind the losses affecting their host.

Searching for a dancer missing for years, Nancy and her friends investigate Heath Castle. A secret within its deteriorating walls and enemies obstructing their search suggest that the disappearance is tied to a scheme involving the dancer's inheritance.

Nancy's seaside holiday is disrupted when her father fails to arrive as promised. A nearby cave's supposed ghost and a bell heard before water rushes out add another mystery, sending Nancy, Bess and George into danger.

Penny takes a holiday job at her father's understaffed newspaper, facing interference from a jealous reporter. Covering a steel plant explosion, she loses a crucial camera and must recover it while investigating a gang's fraudulent explosive device.

Penny Parker investigates after a bank president disappears and a large sum of money goes missing. A drawing of a plumed serpent leads her toward his interest in ancient cults and a case with conflicting clues.

Penny and Louise go searching for flowers in a swamp, where Louise's dog disappears. Their outing becomes entangled with a hunt for an escaped convict and an illegal still hidden in the marsh.

Nancy Drew helps a woman recover her stolen purse, then learns that valuable contents are still missing. An old album, a doll collection, and a missing violinist give Nancy several connected mysteries to investigate.

Strange noises interrupt a nighttime ski outing for Penny, Louise, and Jerry. A secretive religious group occupies a nearby monastery, and a missing woman's interest in cults gives Penny reason to investigate its leader.

Nancy Drew investigates after Mrs. Putney's stolen jewelry is recovered and proves to be fake. Apparent messages from spirits and an abandoned hall draw Nancy into a mystery involving deception and unexplained visitors.

A treasure hunt leads Dan and Brad to a coded message about Skeleton Island and an unconscious boy. When both the boy and the message disappear, the Cubs investigate suspicious activity around the island.

Dan's Cub Scout troop visits a pheasant farm where the caretaker imposes strict rules. Trouble escalates when another group collects feathers and the Cubs face accusations that they have killed birds on the property.

The Brownie Scouts spend their Christmas vacation at Snow Valley in Minnesota. Their winter outing brings a search for a missing locket, adding a mystery to the girls' adventures away from home.

Nancy investigates a stolen Chinese vase while helping Bess's cousin pursue an interest in pottery. A leaning chimney becomes a clue in a case that also involves a missing man and his daughter.

Dan finds a box of money in the church basement, but it disappears after his Cub leader takes charge of it. The boys search for the thief before suspicion and financial responsibility overwhelm their leader.

The Brownie Scouts work together on a crazy quilt for a fundraiser before taking part in a cherry festival. Their preparations and festival activities bring new challenges for the girls and their troop.

Nancy, Bess, and George stay aboard an old clipper ship in Boston Harbor to investigate ghostly visitors. A missing figurehead may help establish the ship's history while theft and fire threaten their investigation.

Professor Terry Scott asks Nancy to help find a missing archaeologist whose work involves a Mexican treasure. A damaged stone tablet and three black keys provide clues as Nancy investigates the disappearance.

After Red claims he saw a firelit face carved into a cliff, the Cubs investigate and find the carving themselves. Missing belongings and an elusive man in the woods complicate their search for its creator.

A stolen fur piece bought by a housekeeper gives Nancy Drew a new mystery. When someone begins using Nancy's name, the investigation becomes personal and the young detective faces suspicion herself.

A week at Silver Beach promises swimming and time with friends for the Brownie Scouts. When their leader's watch disappears, the girls encounter a mystery amid their holiday activities and discoveries.

Louise and Jean visit a friend at Webster College, where a chapel bell is linked to rumors of a ghost. The sisters investigate the haunting and a hidden treasure intended to support the chapel.

The Cubs are accused of damaging an old church far beyond a window Dan admits breaking. With a lawsuit threatening their organization, Dan and his friends must find evidence to defend their reputation.

An unusual velvet mask gives Nancy a clue to thefts committed during social events. As she investigates a company associated with the gatherings, another woman's suspected involvement makes clearing an innocent person especially urgent.

A gold bracelet with missing horse charms draws Nancy into a circus mystery. An unhappy aerial performer may hold a connection to the bracelet, prompting Nancy to investigate events around the traveling show.