Leave No Trace

The new thriller from the author of the Theakstons Crime Novel of the Year, In the Blink of an Eye

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Leave No Trace

By: Jo Callaghan

Narrated by: Rose Akroyd

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About this listen

FROM THE AUTHOR OF THE SUNDAY TIMES BESTSELLER IN THE BLINK OF AN EYE
Winner of the Theakston Old Peculier Crime Novel of the Year 2024
Winner of the Crime Writers’ Association ILP John Creasey (New Blood) Dagger 2024

One detective driven by instinct, the other by logic.
It will take both to find a killer who knows the true meaning of fear . . .

When the body of a man is found crucified at the top of Mount Judd, DCS Kat Frank and AIDE Lock – the world’s first AI detective – are thrust into the spotlight with their first live case.

But when they discover another man dead – also crucified – it appears that the killer is only just getting started. When the Future Policing Unit issues an extraordinary warning to local men to avoid drinking in pubs, being out alone late at night and going home with strangers, they face a hostile media frenzy. Whilst they desperately search for connections between the victims, time is running out for them to join the dots and prevent another death.

And if Kat and Lock know anything, it’s that killers rarely stop – until they are made to.

‘Confirms Callaghan as a new force to be reckoned with in crime’ Daily Mail

‘Jo Callaghan is an outstanding talent’ Jane Casey

‘I couldn’t turn the pages fast enough’ Nikki Smith

‘A smart, agile, immaculately plotted and moving thriller that is unswervingly gripping and scary, and at the same time beautifully tender and humane’ Nicci French

‘With Leave No Trace, Jo Callaghan cements her status as a crime fiction force to be reckoned with’ Caz Frear

‘Brilliant, rapidly paced and plotted . . . Another masterpiece’ Imran Mahmood

‘Every bit as smart, compelling and insightful as her debut . . . A terrific read!’ Gytha Lodge

‘Jo Callaghan has done it again in this intricately plotted, humorous and incredibly moving thriller . . . I absolutely loved it’ Laura Marshall

‘Balanced, nuanced, intelligent, provocative’ Amanda Reynolds

‘Another exciting and thought-provoking book from Jo Callaghan that combines cutting-edge tech with a classic police procedural . . . Hugely human and big-hearted. Brava!’ Sarah Hilary

Crime Thrillers

Fiction

Mystery

Police Procedural

Psychological

Science Fiction

Suspense

Technothrillers

Thriller

Thriller & Suspense

Crime

Technology

Heartfelt

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Critic reviews

‘As brilliantly plotted and innovative as In The Blink Of An Eye, AIDE Lock & DCS Frank are back in Leave No Trace. This time attempting to solve horrific murders in the dead of winter; the story chilled me to the bone and I couldn’t turn the pages fast enough. Callaghan writes with such intelligence; interspersing humour with moments of utter heartbreak’ Nikki Smith

‘I am rapidly becoming a huge Jo Callaghan fan. Leave No Trace was every bit as smart, compelling and insightful as her debut, and where these books really excel is in the emotional weight they bring to the thriller genre. A terrific read!’ Gytha Lodge

‘With Leave No Trace, Jo Callaghan cements her status as a crime fiction force to be reckoned with. Emotional and enthralling, with great dashes of humour throughout. It also includes one of the most heart-stopping yet satisfying endings I've read in a long time. More please, Jo!’ Caz Frear

'Jo Callaghan has done it again in this intricately plotted, humorous and incredibly moving thriller. As well as being a gripping, fast-moving story in its own right, it has so much to say about the complementary roles of logic and emotion in policing (and life!), the complexities of grief and what it means to be human. I absolutely loved it' Laura Marshall

‘Balanced, nuanced, intelligent, provocative’ Amanda Reynolds

Most relevant

An enjoyable listen, good story, well paced, well narrated. As good as book 1. My only issue (and this applies to book 1 as well, though it probably won’t stop me listening to book 3 when it arrives) is that the tech is sometimes unrealistic. Your main leap of faith is the AI itself but you get on board with this as it’s probable future tech that isn’t that far off based on current AI, It’s just been brought forward to aide the story. However the AI seems to live and run on (not be remotely connected to) a device that is comparable to Fitbit. A Fitbit that can not only run the full AI model, but do so on a never ending battery. The device can also project a full holographic representation of the AI with Lidar scanners on the device being able to scan the room to such a degree that the holographic image that pops up from nowhere can look around the room regardless of whereabouts the device might be pointing. It can also seemingly project through walls (Locke, go outside and entertain the children whilst I speak to the mum). Finally the hologram can seemingly speak (the voice seems to come from the hologram itself rather than the device). This is a Fitbit I would like to own!