Shadow Threat
You're nothing more than a living NFT, Thomas -- and I intend to make a literal killing from you!"
When ex-MI5 agent Tom Marlowe wakes to find a ten-million dollar bounty on his head, London erupts into chaos. His nemesis, St John Steele, has turned the city into a battleground, unleashing elite assassins in a twisted contest where every failed kill slashes the prize money in half. The longer Marlowe survives, the less he’s worth—forcing killers to act fast before the reward vanishes.
But the bounty is just the bait. Steele’s real game is $MARLOWE, a dark web cryptocurrency where high-stakes gamblers bet on Marlowe’s death—wagering on when, where, and even how he’ll be taken out. With anonymous backers funding increasingly bizarre assassination attempts, every encounter is a brutal, unpredictable fight for survival.
Hunted by killers, pursued by MI5, and unable to trust anyone, Marlowe is backed into a corner. As Steele manipulates the chaos to launder millions for his new secret empire, Marlowe must uncover the true scale of the conspiracy -- making alliances with unlikely candidates -- before his true friends are taken off the playing board permanently... leading to a final showdown atop Tower Bridge, where every move could be Marlowe’s last—and where lives will be changed forever.
The hunt is on. The world is watching. And for Marlowe, survival is a numbers game, where the clock is always ticking...
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Jack Gatland
Jack Gatland, the pen name of Tony Lee, is a British author known for crafting intricate crime thrillers that keep readers at the edge of their seats. With a writing career that spans over three decades, Lee's diverse body of work includes everything from graphic novels and comics to television scripts, but it is under the Gatland name that he has truly found his voice in the world of crime fiction. His gripping Detective Inspector Declan Walsh series delves deep into the world of cold cases, bringing life to the "Last Chance Saloon" unit of the City of London Police—where every investigation feels like a race against time, and every solution is just as layered and complex as the characters themselves.
Tom Marlowe Spy Thrillers
Tom Marlowe Spy Thrillers consists of eleven books and series is set to expand with the upcoming release of one more book. The current recommended reading order for the series is provided below.

