Graham Ison Books in Order

When MI5 fears a traitor is leaking sensitive operations, Special Branch puts John Gaffney in charge. His carefully planned trap leads to a suspicious suicide and a tense investigation into a long-running enemy operation.

John Gaffney is drawn into a Special Branch investigation where a matter of high office brings political pressure and dangerous secrets. To solve the case, he must keep asking questions that powerful people would rather avoid.

John Gaffney faces a sensitive Special Branch case where the usual rules of a criminal investigation are complicated by official secrecy. Sorting truth from institutional self-protection becomes as important as finding the person responsible.

The first Tommy Fox novel introduces a detective faced with a murder inquiry full of uncertainty and competing motives. Fox's practical approach to evidence and interviews is tested as the search for a killer grows more complex.

Detective Chief Superintendent John Gaffney investigates after the body of a young woman is found on the Brittany coast. Identifying her and retracing her unusual life leads from France back to the guarded world of Scotland Yard.

Tommy Fox investigates a crime whose clues lead into the routines and private business of ordinary London life. What first seems a limited inquiry grows more complicated as Fox uncovers motives people have worked hard to conceal.

A new case leads Tommy Fox into a world of secrets that have survived longer than anyone expected. As the investigation tightens, Fox finds that the people closest to the truth are also the most determined to hide it.

Tommy Fox investigates a case where foolish behavior has serious consequences. Behind the jokes, evasions, and public performances lies a crime that requires Fox to decide which apparently minor detail really matters.

Detective Tommy Fox faces a case involving the unpredictable Tango Harris, whose life brings danger and unanswered questions in equal measure. Fox must cut through bluff, bravado, and competing loyalties before the situation turns deadly.

A crime beneath London's everyday surface draws detective Tommy Fox into a case shaped by hidden lives and uneasy alliances. The investigation demands patient police work as each answer exposes another reason for someone to stay silent.

Tommy Fox tackles a difficult crime investigation in which valuable appearances conceal less respectable motives. As the evidence builds, Fox must work through conflicting accounts and dangerous personal connections to identify the truth.

Newly promoted detective Tommy Fox investigates the deaths of three Britons aboard a yacht. His inquiry leads to a dubious video company, a former employee's overdose, and a widening field of suspects with reasons to lie.

On the day Britain enters a new European currency system, public anger erupts into unrest. As the government hesitates and conspiracy theories swirl inside MI6, political crisis threatens to become something far more dangerous.

The first Brock and Poole mystery introduces DCI Harry Brock and DS Dave Poole as they tackle a London murder inquiry. Their contrasting styles and shared determination set the tone for a long-running series of police investigations.

DCI Harry Brock and DS Dave Poole investigate a death that brings them into contact with a close-knit group guarding its own secrets. Beneath the lively surface lies a serious crime, and Brock is determined to expose it.

In a London shaken by the Somme, DI Ernest Hardcastle investigates the murder of a young woman. Intelligence officers keep obstructing him, making the blunt, determined detective wonder what MI5 is trying to hide.

Brock and Poole are drawn into a case where a violent death exposes deeper tensions beneath an ordinary public surface. As witness accounts shift, the detectives have to work out which detail will finally crack the investigation.

On Armistice Day 1918, a missing lodger is found strangled beneath Brighton's Palace Pier. Hardcastle investigates the pregnant woman's complicated life, where blackmail, an army officer, and a photographer all offer possible motives.

Ernest Hardcastle and Charles Marriott investigate another murder against the pressures of wartime London. The case draws the divisional inspector into a maze of competing stories, official concerns, and a conspiracy that reaches beyond the first crime.

A murder case gives Brock and Poole little room for error as leads point in several directions at once. Their inquiry moves beyond the obvious suspect and into the tangled lives of people desperate to keep the past buried.

DCI Harry Brock and DS Dave Poole investigate a murder whose apparent explanation soon begins to fail. The pair must pick through misleading evidence and private grudges before the person responsible can strike again.

In February 1915, a policeman is shot in Westminster, then the wife of a Royal Flying Corps officer is killed nearby. Hardcastle must untangle lies involving a bookseller, artist, reporter, and military officers.

A troubling death pulls Brock and Poole into an investigation where quiet places conceal loud resentments. The detectives follow a trail of personal history and conflicting loyalties to find the motive behind the crime.

Actress Victoria Hart is strangled in Windsor Great Park on Christmas Day. Hardcastle and Marriott trace her life to a wartime revue and its recruiting campaign, where another death suggests a troubling connection to the army.

Four weeks before the Somme, Hardcastle investigates the murder of retired colonel Sir Adrian Rivers in Kingston upon Thames. With Marriott's help, he questions a difficult household while a Zeppelin raid brings danger even closer.

Brock and Poole face a murder investigation full of surprises, false assumptions, and people with something to hide. Careful questioning and solid police work are their best tools as the case becomes more dangerous.

A new case draws DCI Harry Brock and DS Dave Poole into a search where missing information matters as much as what has been found. Every witness has a version of events, and the detectives must discover who is protecting whom.

Brock and Poole investigate a case in which status and influence seem designed to keep the truth out of reach. The detectives must look past privilege, polished appearances, and official pressure to identify a killer.

In June 1917, the murder of a senior Ministry of Munitions official raises fears of German espionage. A second killing points Hardcastle and Marriott toward a Woolwich Arsenal worker, but the connection is far from clear.

DCI Harry Brock and DS Dave Poole take on another difficult murder inquiry in and around London. As they work through conflicting stories and concealed relationships, the case tests their patience, instincts, and ability to separate fact from performance.

In July 1917, a cashier is murdered at Victoria Station and an abandoned army cap seems to identify the killer. Hardcastle and Marriott head to Aldershot expecting an easy arrest, only to find a baffling case.

A woman is murdered in Heathrow's car park on Christmas Day while preparing to fly to New York. Brock and Poole question her husband, then uncover a smuggling operation linking central London with the south of France.

Detective Inspector Ernest Hardcastle takes on a wartime murder case that refuses to yield a simple explanation. With Charles Marriott beside him, he pursues the facts through London streets shaped by suspicion, secrecy, and the demands of war.

In March 1918, a body recovered from the Thames leaves Hardcastle facing a stubborn and tangled inquiry. The victim's widow, a close circle of suspects, and Special Branch attention make the case harder at every turn.

This standalone novel follows a man's life through the upheavals of two world wars. The house at Oxford Square becomes a point of connection as personal choices, love, loss, and history reshape the people around it.

New Year's celebrations end when a jeweler is murdered in a Vauxhall robbery. Hardcastle traces the thieves' motorcar into a case involving military secrets, divided loyalties, and Special Branch interference during the First World War.

Two burned bodies are found inside a camper van in Richmond. Brock and Poole discover that the dead couple had criminal connections, drawing them into a double-murder inquiry with financial consequences that reach far beyond Britain.

In summer 1918, Georgina Cheney is found dead beneath her window, but Hardcastle suspects she was murdered. As he and Marriott uncover similar deaths and a list of secret lovers, the inquiry becomes a hunt for a repeat killer.

Accountant Clifford Gregory is killed during what appears to be a burglary near Heathrow. When his air-stewardess wife disappears, Brock and Poole realize her account cannot be trusted and that the case is far from straightforward.

The body of actor Lancelot Foley is uncovered in a Chelsea excavation. DCI Harry Brock, DS Dave Poole, and DI Kate Ebdon follow the case from London to Paris, where jealousy and old secrets lead to further deaths.

Ernest Hardcastle investigates a murder in wartime London, where a collector's private passions may hide a dangerous motive. With Marriott's help, he must sort genuine evidence from the stories people tell to protect their reputations.

Richard Cooper is shot in his North Sheen apartment, leaving Brock and Poole with few clues and unreliable neighbors. A lead in Belgium may explain the murder, but the hunt soon places their own team in danger.

A new investigation takes Ernest Hardcastle and Charles Marriott into the uncertain lives of wartime Londoners. As they search for answers, a missing person and a serious crime force the detectives to question every easy assumption.

When young women are found strangled in southwest London, each missing the same item of clothing, Brock and Poole fear a serial killer is at work. The detectives must break through a web of deceit before another woman dies.

Detective Inspector Ernest Hardcastle faces another wartime London case where the obvious answer will not do. With Sergeant Charles Marriott, he follows evidence through a tense mix of private secrets, public pressure, and the threat of wider consequences.

A suspicious fire at a nudist club near Harrow leaves charming conman Robert Sharp dead. DCI Harry Brock and DS Dave Poole uncover fraud, betrayal, and a long list of people with reason to want him gone.

In August 1939, DI Walter Hardcastle is promoted into a secret inquiry after burglaries target homes linked to a new war submarine. When a break-in ends in double murder, he must find a German agent before war begins.