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The Kill Switch: The brand-new explosive 2026 thriller from the bestselling UK political journalist

Journalist Gil Peck has spent decades breaking stories about Britain's political elites, shining a light on the darkest corners of Whitehall.

But when the Prime Minister, Stella Barnsbury, collapses during an interview on his podcast he finds himself at the centre of the scoop.

Within 48 hours, the Prime Minister is dead. And when foul play is confirmed, Gil and his partner Jess - the last civilians to see Stella alive - become the prime suspects.

With everything on the line, Gil and Jess investigate the government's shadowy contract with a global tech giant - a deal that collapsed in the lead up to Stella's assassination. Was it just another government U-turn, motive for murder - or worse?

In a brave new world of megalomaniac technocrats, malevolent AI super-intelligence and cutting-edge brain implants, Gil must confront a deadly, age-old how far will some go in the name of progress . . . and profit?

358 pages, Kindle Edition

Published July 16, 2026

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Robert Peston

17 books68 followers

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5 stars
19 (18%)
4 stars
45 (44%)
3 stars
26 (25%)
2 stars
9 (8%)
1 star
3 (2%)
Displaying 1 - 14 of 14 reviews
Profile Image for holly.
73 reviews
September 6, 2026
I started this trilogy at the beginning of my week long flu and was half way through this installment when my fever broke. This is crap haha, so many weird and offensive autism jokes and total dog shit AI plot
Profile Image for Karen Cole.
1,149 reviews171 followers
August 27, 2026
The Kill Switch is the third book in Robert Peston's Gil Peck series but the first I have read. Although there are mentions of previous events, it can easily be enjoyed as a standalone and I had no problems becoming invested in the lives of the two main characters, the aforementioned Gil and his partner, Jess. The narrative is split between the pair and while it's easy to see the parallels behind Gil's background and that of Robert Peston himself, Jess is just as fully realised.
Jess is editor of the Financial Chronicle but also hosts a politics podcast with Gil. Their combined years of experience have seen them interview, report on and expose the activities and misdemeanours of politicians but even so, an extended interview with the Prime Minister, Stella Barnsbury is quite the coup. Throughout the book, Robert Peston depicts the close, entangled relationships of politicians from both sides of the House and the journalists who follow them. Jess and Stella Barnsbury go way back and indeed share a wild past that makes what unfolds here even more shocking when, just a short while into the interview, Stella becomes ill and eventually collapses.
In a post-Covid world, the fear of another virus sweeping the globe has become almost constant and when Barnsbury dies a few days later, Gil and Jess are almost immediately quarantined; as the last people to see her alive, they may also be at risk from a new, deadly disease. They receive a clean bill of health soon enough, only to discover they – and the country face an even more frightening challenge. AI is already causing concerns, of course, not least in the publishing world but here, Robert Peston examines the dangers of global superpowers and amoral multibillionaires allowing and encouraging the AI economic and social revolution to reach singularity much sooner than perhaps predicted.
Although partly a science-fiction novel featuring a chilling exploration into the way in which artificial and human intelligence could be forcibly combined, The Kill Switch feels a scarily prescient book. Fake news has been with us for years but with those controlling social media now more rich and powerful than some countries, their political ambitions seem more unstoppable than ever. Jess and Gil's investigation into the assassination of the Prime Minister becomes an unsettling metaphor for the risk to our own freedoms, with the sobering reminder that who we trust has become something we have to weigh up as being who is least likely to want to cause us harm.
The breakneck speed of the complex plot is complemented by the rich sense of place and it's here that Robert Peston's own career pays dividends as we are given a birds-eye view into the worlds of politics and journalism. There are some genuinely shocking moments in The Kill Switch but the human cost of ambition and revenge is never forgotten and there are some poignant scenes too.
The Kill Switch is an accomplished, compulsive conspiracy thriller and is one I highly recommend.
211 reviews1 follower
September 28, 2026
A thin plot buried beneath British class politics

I'm not entirely sure what to make of The Kill Switch. For a book presented as an explosive political thriller, I found the actual storyline surprisingly thin. The sometimes unnecessarily complicated vocabulary doesn't exactly help either.

There is an awful lot of Downing Street, Westminster and British establishment politics, but not nearly enough substance to turn it all into a compelling thriller. Much of the story revolves around the British class system and the social circles surrounding those in power. That certainly gives the book a distinctly British character, but it also makes it feel rather old-fashioned.

The revenge element didn't entirely convince me either. Then again, we seem to be seeing more and more thrillers these days in which the supposed hero is essentially a murderer. Apparently, being on the right side of the story is now enough to justify just about anything.

Perhaps I expected too much from a political journalist writing a political thriller, but I had hoped for a sharper plot and a little less preoccupation with the British establishment.
Not a terrible book, but certainly not one that left me particularly enthusiastic.

Een flinterdun verhaal tussen de Britse standen en Downing Street

Ik weet eigenlijk niet zo goed wat ik van The Kill Switch moet vinden. Voor een boek dat wordt gepresenteerd als een explosieve politieke thriller vond ik het verhaal verrassend flinterdun. Het soms onnodig ingewikkelde woordgebruik helpt daarbij ook niet echt.

We krijgen heel veel Downing Street, Westminster en Britse politieke kringen voorgeschoteld, maar naar mijn idee te weinig inhoud om er een echt spannende thriller van te maken. Een belangrijk deel van het verhaal draait om het Britse standenstelsel en de sociale kringen rondom de macht. Dat geeft het boek natuurlijk een uitgesproken Brits karakter, maar maakt het tegelijkertijd nogal ouderwets.

Ook de wraakactie kon mij niet helemaal overtuigen. Al zie je tegenwoordig wel vaker dat de zogenaamde held van het verhaal eigenlijk gewoon een moordenaar is. Blijkbaar mag je tegenwoordig nogal wat op je geweten hebben zolang je maar aan de goede kant van het verhaal staat.

Misschien had ik van een politiek journalist die een politieke thriller schrijft iets meer verwacht. Een scherper plot bijvoorbeeld, en wat minder aandacht voor de Britse gevestigde orde.

Geen verschrikkelijk boek, maar enthousiast ben ik er bepaald niet van geworden.
Profile Image for JD.
58 reviews
September 4, 2026
Review of The Kill Switch, by Robert Peston.

Four stars ⭐⭐⭐⭐  

This is the scariest book I've read this year. If it doesn't alarm you and make you think, it should. Recommended if you want to lie awake at night! 

Journalist Gil Peck returns in the third thriller from Robert Peston. It's over fifteen years later in his life from the previous book, and begins with the shocking death of the British Prime Minister. To say much more would be a plot spoiler, but AI is a key theme of this book. 

Whilst the first two books were loosely inspired by real political events 20-30 years ago, this book is very much set in today's world, or even slightly in the future. But it is remarkably prescient; most of what happens here could potentially happen for real any day now, and this is what makes it so scary. It paints a terrifying future that's just a little bit too believable in places. 

I would say that whilst the first two books were fairly standard political thrillers, this one goes in a slightly different direction and becomes more of a techno thriller or possibly even science fiction. 

It works perfectly fine as a standalone thriller and requires no knowledge of the previous book or characters to enjoy it. 

Overall it could have ended in various ways. I'm not sure I would have necessarily picked the one chosen, but nevertheless, it was satisfactory enough. 

You might like this if you like Chris Brookmyre, Michael Dobbs, Steph McGovern or Tom Bradby. 
854 reviews5 followers
August 14, 2026
The Kill Switch is the third book featuring journalist Gil Peck - and with the series having begun in the 90s this one takes us to the present day. And it certainly starts with a bang as Prime Minister Stella Barnsbury collapses during a podcast interview with Gil and his estranged partner Jess - and subsequently dies.

What follows is an intriguing story that presents the reader with some futuristic - but not so far-fetched - events, from malevolent AI to a somewhat terrifying potential brain implant as Gil is left with a 72 hour gap in his memory.

Peston draws on his experience and (I hope) takes it to the next level. There is political manoeuvring, corporate shenanigans and the genuinely scary prospect of where AI is headed, all adding intrigue to a nystery with no shortage of twists.

It's a compelling political thriller - and a series that in my view keeps getting better.
143 reviews1 follower
July 21, 2026
I read this book after going to the book launch, where I found Robert Peston very engaging and personable. Although this is the 3rd book in a trilogy, it works perfectly well as a standalone book - I had not read the previous 2 books . Our main protagonist, Gil, is a fictional exaggerated version of Robert Peston & a very likeable character that you want to root for. His partner, Jess isn't given much personality, beyond sheer determination. Their children are pleasant additions. It is part thriller, part political and part sci fi, very much focused on how AI could govern our lives in the future. Although I enjoyed it, I didn't find it as much of a page turner as I had expected.
Profile Image for Ryan Thompson.
51 reviews2 followers
August 2, 2026
This is the third and final book in the Gil Peston Trilogy and like the first two books in the series (The Whistleblower, and The Crash) it did not disappoint!

This book takes on a more dystopian setting with the dangers of AI being the hands of billionaires who are desperate for power. It’s really quite scary to think that the events in the book are something that could plausibly happen if AI continues this rapid expansion into AGI!

Another thoroughly enjoyable, gripping political thriller from Robert Peston which I could not put down!

Easy 5 star read!
44 reviews1 follower
October 5, 2026
Veteran broadcaster and political journalist Robert Peston brings all his years of experience to create the Gil Peck series of novels in which Peck must navigate sometimes criminal situation to uncover a big story.

The Kill Switch is actually the third novel in the Gil Peck series and it finds Gil Peck on his toughest and scariest assignment yet and might well be one that threatens his life Read the full review here
Profile Image for David.
25 reviews
September 21, 2026
I couldn’t help but hear Peston’s voice narrating this whilst reading. Whether that is a good thing or not, I’ll let you decide.

The last instalment of the Gil Peck series. Peston does a good job of highlighting the challenges AI can have on the world. Although this is a work of fiction, it is extremely thought-provoking.
1 review
October 4, 2026
An outrageously pretentious thriller. Any commentary on the workings on British politics screamed "look how smart I am and how much I know". Too much emphasis on personality disorders of characters which I'm unsure the author has any proper understanding. All this accompanied by a frankly hilarious but thin dystopian AI plot which seemed to become an afterthought.
98 reviews4 followers
Review of advance copy
July 15, 2026
This is my first book by this author and I’d definitely read more. It’s. It’s not my usual read though I’d love to read the first two books in the series, though did find this easy to pick up.
Don’t be put off by the political stance, it was an interesting and gripping read.
Profile Image for Christine.
75 reviews
July 31, 2026
Not his greatest work. Enjoyable, at the start I thought I was gaining an insight into the dark side of politics, it then went completely over the top. RIP Gill Peck
This entire review has been hidden because of spoilers.
Profile Image for Karla Karstens.
170 reviews4 followers
August 10, 2026
A cautionary tale about AI and its potential for abuse by those in power. Well written and gripping.
5 reviews
August 22, 2026
A political thriller romp. Interestingly contemporary- the characters and plot are a bit thin. But a good poolside read.
Displaying 1 - 14 of 14 reviews