Clown Town

Herron’s preternatural talents for satire and spycraft are on full display in his latest Slow Horses novel (after Bad Actors). The crimes of a murderous informant who worked with British intelligence in Northern Ireland during the Troubles move a trio of former spies to seek recompense by blackmailing Diana Taverner, First Desk at the Regent’s Park headquarters of MI5. Rather than swatting the trio aside, Diana seizes the opportunity to shift blame for their findings onto some of her many rivals. Meanwhile, River Cartwright, grandson of late Service veteran David Cartwright, hears from the man curating his grandfather’s library that a book has gone missing. Still recovering from a near-fatal poisoning, River learns that the phantom volume is a repository of state secrets. As those potlines converge, Jackson Lamb, head of Slough House’s ragtag group of MI5 rejects, gets roped into Diana’s scheme. With his trademark balance of complex plotting and bone-dry laughs, Herron steers the narrative toward a jaw-dropping ending that leaves at least one key player dead and promises big changes for the future of the series. Overflowing with gritty action and mordant humor, this is as good as espionage novels get. Agent: Lizzy Kremer, David Higham Assoc. (Sept.)