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Walk the Line

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Murder is the game. The dark web keeps score. The next victim is already chosen. When a dismembered couple is found in a London gallery, DC Jake Tanner traces the horror to a shadowy online ne...
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  • 16 September 2025
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On the dark web, nobody can hear you scream

Inside a London art gallery, a young couple are brutally murdered in a chilling tableau: their bodies dismembered, the word “liar” visibly inscribed on the woman’s chest.

DC Jake Tanner, still suffering from the mental and physical toll of his last case, doesn’t know what to think. Was this a revenge killing or something worse? His questions are answered when another body turns up and a series of alarming and gruesome clues begin to emerge.

This was the work of a sadistic serial killer, a monster hunting his victims online.

To stop the bloodshed and come face to face with evil, Jake must walk the line of duty and do everything he can to protect more innocent young women from dying.

But how do you catch a killer who hides behind a screen?


Walk The Line is a gritty crime thriller perfect for fans of Simon McCleave, Rachel Mclean, and the BBC's Line of Duty.

Also in the series:
Toe the Line (Book 1)
Walk the Line (Book 2)
Under the Line (Book 3)
Cross the Line (Book 4)
Over the Line (Book 5)
Past the Line (Book 6)

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Price: $19.99
Pages: 414
Publisher: Vinci Books Ltd
Imprint: Vinci Books Ltd
Series: DC Jake Tanner Crime Thriller
Publication Date: 16 September 2025
Trim Size: 7.80 X 5.10 in
ISBN: 9781036705435
Format: Paperback
BISACs: FICTION / Mystery & Detective / General, Crime and mystery: police procedural, FICTION / Crime, Thriller: organised crime / gangland crime
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Jack Probyn writes murder mysteries and crime thrillers set in England. He studied Creative Writing at the University of Surrey and has always been fascinated by storytelling, particularly the dark and twisty kind. He is the author of the DC Jake Tanner series and the DS Tomek Bowen series, both packed with suspense, mystery, and unexpected twists. When he's not writing, he enjoys building LEGO, solving sudoku puzzles, and occasionally going snowboarding. He lives in England with his partner and their British Shorthair cat, Tommy.