Jack Gatland Books in Order

Murders committed years apart suddenly line up into one pattern, and Declan Walsh realises someone has been building a conspiracy for decades. Four people took parts of the secret to their graves, and one grave is still out there. Walsh has to find it first.

A breakdown strands Liam Harper in Mercy Crossing, where a sheriff arrests him for a crime he didn’t commit. Two rival motorcycle clubs decide he’s part of their war, and both sides come for him. Harper has to clear his name before the town erupts.

Tom Marlowe heads to Edinburgh to protect someone close to him and track down files that could prove who betrayed his unit years ago. The search drags him through criminal networks and intelligence traps, with the past closing in fast.

A City banker is killed with a wet playing card pinned to his body and a toy water pistol nearby. Declan Walsh traces the clue back to a group of old friends and a game that never really ended. Someone is punishing the winners.

Liam Harper heads to Chicago to disappear, but stepping in to stop a beating drags him into a buried toxic cover-up. Corporate security closes in fast, and Harper’s own past becomes leverage. He can run, or he can fight back.

A corporate client hires Ellie Reckless for what sounds like a clean assignment, then it turns into a trap aimed at her whole crew. With an intelligence operation tightening the net, Ellie has to hit back hard before they’re taken off the board.

A masked highwayman is robbing the wealthy across London, and the crimes feel designed as a message. When a senior minister is held up, Declan Walsh is forced into a high-profile chase. To catch the thief, he has to understand the story they’re reenacting.

Tom Marlowe thinks he’s escaped the game until a deadly enemy puts out a kill order with his name on it. Forced to run across the US, he calls in a dangerous favour and fights to stay ahead of professional hunters closing in.

Widow Laura Carlyle expects a quiet life until a suspicious death pulls her into a tangled mystery in Kensington’s high society. With the enigmatic investigator Sebastian Silver at her side, she follows clues toward a dangerous, well-connected group.

Laura Carlyle and Sebastian Silver are summoned to a Cotswolds village for Christmas and find the priest dead in the church crypt and a sacred treasure missing. With only days to spare, they race through village secrets to stop another crime.

Tom Marlowe wakes to a massive bounty on his head and London turns into a playground for assassins. With every failed attempt raising the stakes, he and his allies must outsmart the hunters and expose who’s funding the chaos.

When a CIA operative disappears, Tom Marlowe follows the trail to Boston and a hidden Cold War listening post buried under the city. The case pulls him into old secrets, new enemies, and a conspiracy that refuses to stay dead.

A decade-old corpse is found in the basement of a hidden casino, and the victim turns out to be a famous American poker player. Declan Walsh steps into a world of high stakes and higher lies. The house always wins, unless Walsh changes the rules.

Ex-SRR operative Liam Harper rides into Prosperity, a Nevada desert gold-rush town, looking for answers about his late father. Instead he finds a deadly secret people will kill to protect. Harper has to choose, walk away or dig deeper.

A friend’s fatal “accident” doesn’t add up, and Liam Harper won’t let it go. His search pulls him into a small-town battle between crime families, with an auto shop caught in the crossfire. Getting the truth means surviving the war.

A personal loss leaves Tom Marlowe exposed, and a favour for a friend turns into a dangerous job in Las Vegas. With corrupt power on one side and assassins on the other, he has to pull off a risky plan before the city swallows him.

A former commando accidentally intercepts messages from a rogue kill team and downloads information he was never meant to see. Tom Marlowe and his tech-savvy partner must keep him alive while the hunt tightens and a national scandal looms.

A serial killer nicknamed the Red Reaper seems to be back, and Declan Walsh can’t afford to be wrong. As new victims appear, he has to separate copycat theatrics from the real monster. The hunt becomes personal when the killer starts targeting the investigation.

London cab drivers are being murdered, and the killer leaves a crooked cane and strange clues behind. Declan Walsh works the case street by street, trying to link the deaths before fear takes over the city. One wrong turn could make him the next fare.

At an elite anti-aging event, a sponsor is found dead in a cryotherapy chamber and Declan Walsh is pulled into the world of biohacking and high-stakes ambition. Everyone claims they’re chasing progress. Walsh has to prove when “progress” becomes murder.

Ellie Reckless owes people who don’t accept late payments. One dangerous job is meant to clear the slate, but it flips into a messy fight for survival as allies are threatened and old enemies circle. Ellie has to burn the debt, or be burned by it.

When an advanced weapon is stolen from a cutting-edge aircraft, Tom Marlowe is sent into a race that crosses borders and bad actors. He’s hunted by a relentless assassin and boxed in by politics, with only one way out: find it first.

A new disappearance mirrors a past case that still haunts Declan Walsh’s team, down to the posies left behind. Old assumptions start to crack as the pattern returns. Walsh has to move fast, because this time the victim might still be alive.

On a cold Sunday night in Manhattan, the corrupt board of Wrentham Industries is trapped in a locked meeting room. A sniper across the street gives them two hours to choose who takes the blame. Every secret they reveal makes survival harder.

With his identity erased and a price on his head, Tom Marlowe flees to New York and leans on an old CIA friend. When a crusading lawyer becomes the next target, Marlowe must keep her alive long enough to expose the real threat.

A corpse dressed as a Roman soldier is found with an antique weapon, just as London celebrates its history. Declan Walsh follows the clues through reenactors and collectors, where obsession can turn deadly. Someone is using the past as cover for murder.

Declan Walsh walks into a new remit and a new office, only to be handed a murder at a high-profile art exhibition. The victim’s connections make the case radioactive. Walsh has to sift art-world glamour from ugly motive before the killer strikes again.

The Last Chance Saloon is changing, and Declan Walsh is already under pressure when a Fleet Street legend is kidnapped. The case collides with media power and political ambition, where stories are weapons. Walsh has to find the victim before the narrative becomes fatal.

Ellie Reckless takes a protection job that puts her uncomfortably close to the man she blames for ruining her life. With an assassin closing in, she and her team have to keep their client alive, and decide what “justice” looks like now.

When a famous stage performer vanishes mid-act, Ellie Reckless is hired to find her. The search leads through London’s cabaret scene, rival crews, and secrets hidden behind smoke and mirrors. Ellie has to spot the trick before it kills someone.

Tom Marlowe takes a protection job in the US that should be simple, stay close, spot the threat, get out. Instead he uncovers a wider plot and finds himself outnumbered, off the books, and chased by people who know his weaknesses.

Back near Whitehall but far from safe, Tom Marlowe is tasked with infiltrating a secret intelligence network with roots in British history. Every lead brings another ambush, and the deeper he goes, the harder it is to tell ally from enemy.

A body hidden for decades is discovered in an underground cell at Temple Church, and Declan Walsh is pulled into a mystery layered with history and modern secrets. As he traces who wanted the victim erased, the present-day danger grows real.

Conman with a conscience Damian Lucas is sent a final message after a mentor is found dead in Deptford. The clues spark a treasure hunt across England, tangled in secret societies and royal history. The prize is vast, and so is the danger.

Ellie Reckless is hired after a truck is hijacked and a valuable shipment disappears. The job drags her into a tense family power struggle and a smuggling operation with violent rules. To get paid, she has to survive the fallout.

A gruesome murder echoes London’s most infamous case and Declan Walsh is forced into a race against a copycat killer. The clues feel staged, the public is watching, and panic spreads fast. Walsh has to stop the pattern before history repeats itself.

Burned MI5 agent Tom Marlowe is pulled back in when retired spies start dying and his old mentor is murdered. The trail points to a Cold War operation and sleeper agents in Westminster. Now he’s hunted by enemies and his own side.

Ex-DCI Ellie Reckless is cleared of murder but pushed out of the police and into London’s underworld. When a job leads to a brutal killing and a trail of dirty money, she’s forced to work among criminals to uncover the truth.

Days before Christmas, people across London start collapsing after wearing Father Christmas hats. Declan Walsh tracks the poisoned trail from the streets to the people profiting from panic. With festive crowds everywhere, he has to stop the next death quickly.

Gangster Johnny Lucas insists he knows who’s killing his people, and Declan Walsh can’t ignore him. As bodies fall around a boxing club and old loyalties resurface, Walsh must untangle truth from delusion. The man asking for help may also be the threat.

A body is found at a remote research base in the Peak District, and the case yanks Declan Walsh back toward his military past. With an old mentor involved and secrets buried behind security fences, Walsh has to face what he thought he’d left behind.

A famous actor is killed by an arrow during a Robin Hood convention, and Declan Walsh has a room full of suspects who all had the skill to do it. As jealousies and grudges surface, Walsh learns the story behind the costume is far from playful.

A killer is working London with a signature that feels like a message, and Declan Walsh is running out of time to decode it. As the bodies mount, the case drags him into the city’s darker corners and forces hard choices to keep his team safe.

A high-profile theft and a missing woman pull Declan Walsh into a case where appearances are carefully managed. The trail runs through London’s wealth and old connections, with a “magpie” thief at the centre. Walsh has to catch them before the story turns bloody.

A man is found murdered in a quiet London square, and the “angels” that watch over it are defaced. Declan Walsh’s investigation uncovers money, motives, and secrets that reach far beyond the crime scene. Someone is determined to silence him.

When murder hits the world of London music, Declan Walsh has to navigate fame, money, and people who know how to control a narrative. The case spirals fast, and every interview brings a new contradiction. Walsh needs the truth before the next encore becomes a crime scene.

A body turns up in Heathrow’s cargo terminal, and the evidence points in several dangerous directions. Declan Walsh is pulled into a case involving military ties and international pressure. The closer he gets, the more he becomes the target.

A death with ritual markings puts Declan Walsh on edge, especially when the clues point to a group that knows how to hide in plain sight. The investigation becomes a race through secret meetings and public lies, with another victim in the sights.

A death at a celebrity chef’s restaurant drops Declan Walsh into a cutthroat world of money and ego. With parts of his team away, he’s forced to work the case short-handed while the pressure climbs. Another victim could be served up at any moment.

Detective Inspector Declan Walsh receives a letter that drags him back to a murder from twenty years earlier. As a political campaign heats up, a new killing makes the old case urgent again. Walsh has to protect a suspect while hunting the truth.