London's Slough House is where washed-up M15 spies go to while away what's left of their failed careers. But now the 'slow horses' have a chance at redemption. An old Cold War-era spy is found dead on a bus outside Oxford, far from his usual haunts. As the agents dig into their fallen comrade's circumstances, they uncover a shadowy tangle of ancient secrets that seems to lead back to a man named Alexander Popov, and a decades-old conspiracy with a...

"What happens when an old spook starts to lose his mind? Do the Services have a retirement home for people who know too many secrets but don't remember they're secrets? Or does someone come to take care of the senile spy for good? These are the questions River Cartwright must ask himself as his grandfather--David Cartwright, a Cold War-era operative--starts to forget to wear pants, and starts believing everyone in his life is someone sent by Services...

Mick Herron, “the le Carré of the future” (BBC), expands his world of bad spies with an even shadier cast of characters: the politicians, lobbyists, and misinformation agents pulling the levers of government policy.
 
“Confirms Mick Herron as the best spy novelist now working.”—NPR's Fresh Air
 
Now an Apple TV+ series starring Gary Oldman and Kristin Scott Thomas.
In...