Diana Xarissa Dunn Books in Order

Janet returns home hoping to rest after months of secret government assignments, but her agency orders further training. When an apparently simple exercise goes wrong, she and her husband must contain the damage while managing two more assignments.

Bessie's cold case team welcomes an observer hoping to start his own unit, while she helps arrange his lodging. A stranger claiming kinship with the hotel owner raises her suspicions, creating a delicate investigation involving a friend's trust.

A friend’s request interrupts Janet and Edward’s break from secret agency work. When a body appears and suspicion falls on someone close to Janet’s circle, the couple investigate while their handler pursues his own competing ideas about the murder.

Aunt Bessie’s cold case team reexamines an apparent murder and suicide that may conceal two killings. Meanwhile, stolen credit card details threaten a luxury hotel’s reputation, leaving Bessie to pursue a separate culprit among its staff.

Aunt Bessie discovers that a friend has put her house up for sale and disconnected her telephone. While searching for her, Bessie joins the cold case unit in reviewing the disappearance of a mother and young daughter ten years earlier.

Janet and Edward accept an American assignment to find four women missing from a Hawaiian resort. Janet poses as a potential next victim, forcing Edward to watch anxiously as their luxurious surroundings conceal a dangerous search for the kidnappers.

Fenella Woods and her niece meet an old friend of her late aunt who has arrived aboard a luxury yacht. When one of his companions is murdered, they investigate the passengers with interference and help from Aunt Mona’s ghost.

While preparing for her wedding, Fenella Woods finds a murdered woman in a tent left behind after a party on her property. Her niece and Aunt Mona’s ghost pursue clues, while Fenella worries that the unsolved killing will disrupt her plans.

A photographer joins the Lady Elizabeth and offers a free portrait session for a passenger’s cat. His unsettling conversation takes on new significance when she finds him wounded in a corridor, drawing her into the investigation of his attack.

A stranger mistakes Holly Parker for the woman who stole his fortune during her Colorado Springs visit. His subsequent murder makes her a suspect, bringing an unwelcome former acquaintance to her defense and pushing her into the investigation.

A beach-planet reunion with an old friend becomes threatening when his jealous wife disappears. Evidence implicates a Lady Elizabeth passenger in murder, forcing her to untangle a deliberate frame-up while the police become increasingly convinced of her guilt.

Margaret Woods settles into an Isle of Man apartment shared with the ghost Mona. A skeleton buried for twenty years and a neighbor’s missing friend disrupt her new life, while Mona eagerly draws her toward both investigations.

A stolen car draws Margaret’s friends into speculation while her boyfriend Ted examines an American cold case. Newspaper interviews provide clues to the ten-year-old murder, and Margaret’s colleagues and the ghost Mona soon contribute opinions of their own.

An arson attack on Margaret’s apartment building coincides with Ted’s investigation of a decades-old Canadian murder linked to the Isle of Man. The ghost Mona pushes Margaret toward suspects in both cases while family worries complicate her work.

Abigail and Mark witness a bitter family argument during a restaurant retirement party, then find its guest of honor dead in an elevator. Suspects seeking refuge at Sunset Lodge draw Abigail into a case complicated by the family’s public feud.

A Valentine’s weekend at Sunset Lodge is interrupted when a hayride reveals a body in a park fountain. The victim’s friends and family approach Abigail for help, and a secret kept for thirty years may explain the murder.

A farm tour leads Abigail and Mandy to skeletal remains beneath a greenhouse bench. The victim’s complicated local history and a former lover’s stay at Sunset Lodge bring the sisters among suspects as unexpected guests reveal further secrets.

Three deaths at a London party leave the cold case unit uncertain who the killer intended to target. Bessie searches a mountain of conflicting witness statements while discreetly investigating an old friend’s concern that her brother has disappeared.

Janet goes undercover at a secure government facility to uncover a planned theft of closely guarded items. With Edward helping from outside and an unsympathetic handler watching, she must identify the culprit before the agency’s secret is compromised.

A country-house visit turns deadly when one of Mr. Jones’s guests is murdered. Janet and Edward reluctantly investigate, hoping to clear their former handler while his certainty that a rival committed the crime clashes with an apparently solid alibi.

Four suspects in Douglas Moss’s murder appear to lack a motive, leaving Aunt Bessie’s team searching old interviews for overlooked clues. At home, questions about her cottage’s name lead Bessie to another suspicious death buried in the island’s history.

A reporter joins the cold case unit as it reviews a man’s unexplained disappearance on his way to work. Another missing man troubles the Seaview Hotel’s manager, giving Bessie and her friends two searches with increasingly uncertain prospects.

Janet and Edward travel to Paris to deliver a confidential envelope to a supermodel without attracting attention. Her entourage and swelling crowds frustrate their simple assignment, while nightly demands from their handler make failure increasingly difficult to avoid.

Repeated false fire alarms unsettle passengers aboard the Lady Elizabeth, raising fears that a real emergency will be ignored. When an actual blaze is extinguished, a dead man remains, pulling one reluctant traveler into another murder investigation.

Holly Parker reunites with two college friends during a Boston vacation. When one disappears and is found dead, police suspect both Holly and the woman’s husband, turning a long-awaited chance to reconnect into another unwelcome murder investigation.

Holly Parker’s Minnesota holiday brings an unexpected invitation to join a wedding party. A guest’s disappearance and the discovery of a body spoil her plans, while the arrival of her ex-boyfriend George adds personal strain to the murder investigation.

A beach outing ends when Margaret and Ted discover a murdered man connected to their companion’s girlfriend. Eager to help with a case close to their friends, Margaret relies on the ghost Mona to steer her toward possible suspects.

Margaret and Ted begin their holiday in York, where a police friend asks for help with a cold case. Sightseeing leads them toward old crime locations and suspects, while the ghost Mona encourages Margaret to investigate before they leave.

Margaret and Ted’s tour of Hadrian’s Wall stops at a small fort where an aggressive motorist is found dead. Asked to assist the local inspector, Ted delays their holiday while Margaret works to identify the killer and resume their travels.

A shopping trip with Mark ends in evacuation when a mall fire alarm sounds. In a staff corridor, Abigail discovers the man who disrupted their lunch lying dead, making the couple witnesses in a murder case far from Nightshade.

Abigail attends a grocery-store opening designed by her sister Mandy, where an old girlfriend confronts Mandy’s partner. The woman’s death in a decorative igloo makes both of them suspects, prompting Abigail to investigate as witnesses arrive at Sunset Lodge.

Clearing Sunset Lodge’s old belongings takes Abigail and her handyman to a junkyard filled with abandoned hotel furniture. A skeleton hidden behind bookcases raises questions about its identity and death, placing Abigail at the center of another investigation.

An investigative reporter offers firsthand knowledge of Trevor Olson’s murder, but his status as a suspect complicates the cold case team’s work. Bessie also searches for a missing woman while worrying that Andrew’s failing health threatens the unit’s future.

An unexpected mission takes Janet and Edward to Dublin to meet a former agent seeking help. Uncertain what he fears, they investigate his past and present contacts under improvised cover stories, with no assurance that anyone can be trusted.

Janet and Edward visit Washington to protect a senator’s daughter following a possible kidnapping attempt. Her disappearance, improbable explanation and her father’s indifference raise conflicting suspicions, prompting the couple to question everyone despite pressure to leave.

A visiting builder tells Aunt Bessie about an unresolved murder from his past, while her cold case unit faces another killing with witnesses scattered worldwide. Andrew’s approaching heart surgery and scrutiny from his superiors increase the pressure to solve both cases.

A mission sends Janet and Edward to the Isle of Man to retrieve a ring from a bank vault. Keeping the assignment hidden from its agency-connected owner proves difficult when they meet her and she asks for their help.

Meeting in London before Andrew’s surgery lets the cold case unit visit the private club where a murder occurred. Meanwhile, two hotel employees disappear, drawing Aunt Bessie into a second investigation far from her familiar island surroundings.

Retired librarian and witch Agnes Hale starts a book club while seeking a quiet life in Greymoure Glen. Finding the rival club’s organizer murdered draws her into an investigation full of suspects, complicated by strict rules against using magic.

Agnes Hale calls an exterminator to remove bats from her cottage, then finds him dead after a book club meeting. Unable to rely freely on magic, she and her cat Rover investigate his troubled business dealings and numerous enemies.

Giving a friend a lift home from book club brings Agnes Hale to a closed diner containing the woman’s dead former husband. Agnes believes her friend is innocent, but proving it requires navigating the victim’s enemies without resorting to magic.

Agnes Hale’s book club attends a rehearsal of a supposedly lost Shakespeare play that ends in angry departures. When an unpopular critic is found murdered outside the theater, his professional feuds and complicated personal life give Agnes plenty to investigate.

A reluctant gambler leaves the Lady Elizabeth for a casino planet and is mistaken for someone else. Drawn into a high-stakes poker game, she faces another investigation when one of the players is murdered during the contest.

A man seeking help with problems aboard the Lady Elizabeth dies before his arranged meeting. Although the death is declared accidental and she is warned away, a passenger agrees to investigate privately when others suspect that he was murdered.

Holly Parker befriends a fellow passenger traveling to a Dallas school reunion and enjoys sightseeing together. When the woman stops answering messages, Holly questions classmates whose lack of concern makes her increasingly doubtful that the disappearance is harmless.

A California vacation becomes a friend’s wedding celebration and reunion with Holly Parker’s ex-boyfriend George. When he finds an aspiring actress dead, questions about another suspicious death replace theme-park visits with an investigation Holly hopes to keep discreet.

Margaret’s sister visits the Isle of Man with her boyfriend and his friends, but old relationships quickly create tension. When the boyfriend is murdered, his concealed history supplies numerous motives, leaving Margaret and Mona racing to investigate before the visitors leave.

Margaret and Ted visit Ohio for Thanksgiving and agree to help clean an inherited Lake Erie cottage. A skeleton in a bedroom interrupts the holiday, drawing them and an unusually weakened Mona into questions about the abandoned house’s past.

Abigail’s beach outing is interrupted by a drifting kayak containing a Sunset Lodge guest’s body. His friendly reputation initially offers no motive, but a hidden past and double life soon give Abigail and Mandy numerous suspects to investigate.

A tour of a shuttered laboratory leads Abigail and her companions to a concealed study and its missing owner’s fresh corpse. His unexplained disappearance and return leave two towns searching for answers about why he came back and who killed him.

Aunt Bessie helps search for a woman who vanished after traveling to meet a man in Texas. Meanwhile, the cold case unit investigates Georgina Richards’s murder, struggling to establish who knew her secrets while Andrew continues recovering from surgery.

Janet and Edward’s quiet visit to Doveby Dale is disrupted when a bride disappears days before her wedding. A mysterious car and the woman’s former husbands offer possible clues, while an agency summons threatens to distract them from finding her.

Running Doveby House for a fortnight, Janet and Edward host their former handler and two mysterious companions. A pubgoer’s murder makes all three guests suspects, leaving the couple to uncover motives while the visitors conceal their reason for coming.

A difficult missing person case challenges Aunt Bessie’s cold case unit, while vandalism complicates a local chef’s relationship with his former girlfriend. Solving both mysteries could repair their romance and strengthen the unit’s standing with Scotland Yard.

Aunt Bessie helps a friend whose son is accused of stealing an engagement ring while reviewing an old pub murder. Drunken witnesses give contradictory accounts of the fatal evening, leaving her cold case unit struggling to reconstruct what happened.

An assignment in Saratoga Springs asks Janet and Edward to deliver a parcel at the races. When their target slips away, a suspicious conversation draws them into an eight-year-old death, demanding inventive undercover work alongside their original mission.

An adjudicator arrives aboard the Lady Elizabeth to dispute a passenger’s enormous casino winnings. When she finds him dead, suspicion falls on her, forcing her to seek the killer while a security virus disables her helper bot’s assistance.

Christmas brings Margaret and Ted’s relatives to the Isle of Man, along with an unpleasant traveler staying at their hotel. When Margaret and her sister find him dead, she and Mona pursue suspects so their holiday gathering can continue.

Abigail and Mark plan a quiet holiday to discuss their future, but hotel repairs uncover a skeleton beneath a maze’s gazebo. The decade-old remains reveal a town full of concealed histories, drawing the couple into another murder investigation.

Aunt Bessie’s team investigates a newlywed’s murder thirty years earlier, shortly before Christmas. A colleague also asks her to find a woman who vanished fifty years ago, bringing fresh possibilities and frustrating dead ends to two longstanding mysteries.