Unfinished business in Berlin: The Secret Hours, by Mick Herron, reviewed

During the summer, I noticed a new noise coming from the crowd whenever Ben Stokes or another English player bashed or stroked the ball to the boundary. It wasn’t quite the cheer you’d expect; more an ahhhh of appreciation, as you would deliver to someone who is offering a masterclass in how to win a game when it has, to all intents and purposes, already been won. By the time I was about halfway through The Secret Hours, that was the noise I was making in my head, as new twists kept unfolding. And they did keep unfolding, if twists can be said to unfold, right up until the last page. Never has a work of popular fiction delighted me more.

Herron has come to fame through his Slow Horses series about an office staffed by agents working for the British Secret Service who have screwed up – not so seriously as to be fired or shot but badly enough to be shunted into dead-end jobs from which it is intended they resign of their own accord.