Body of Lies

The crime thriller of 2026 from the award-winning and Sunday Times bestselling author of In the Blink of an Eye
The brand-new thriller featuring DCS Kat Frank and AIDE Lock from the award-winning and Sunday Times bestselling author of In the Blink of an Eye. 

The brand-new thriller featuring DCS Kat Frank and AIDE Lock, from the award-winning Sunday Times bestselling author of In the Blink of an Eye.

Human suspicion. AI manipulation.
When truth can be rewritten, who can you trust?

DCS Kat Frank is back at the Future Policing Unit after a devastating loss - and straight into her most disturbing case yet.

On Halloween night, a local MP is found murdered. Beside the body is a taunting message in binary code, aimed directly at Kat:

Catch me if you can.

The victim was a vocal opponent of AI. The motive looks political. But as Kat investigates with her partner, AIDE Lock - the world’s first AI detective - the case spirals into something far more dangerous.

Then a cyberattack takes down the National Grid.

With the country in chaos and lives on the line, Kat and Lock must track a killer who is always one step ahead. But in a world of deepfakes, deception and digital ghosts, instinct is no longer enough.

Kat must decide whether to trust the one thing she still fears most: her AI partner.

Because this time, Lock may not just be solving the case.

He may be changing what it means to be human.

Can Kat stop a killer before the lights go out for good?

PRAISE FOR JO CALLAGHAN:

'Terrifyingly timely and provocative' VAL McDERMID
'The most original crime novel you'll read this year' CLARE MACKINTOSH
'Just brilliant!' LISA JEWELL
'Sharp, perceptive writing and a brilliant new take on the detective duo' T. M. LOGAN
'Everything you could hope for in a thriller: heartbreaking, intelligent, deftly plotted and so original' FIONA CUMMINS
'A fresh take on the buddy-buddy cop trope . Provocative and compelling' VASEEM KHAN
'Wildly original, heartfelt, funny, and properly thrilling. Take a bow, Jo Callaghan' CHRIS WHITAKER

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