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Griselda’s tenacity pays off as Monochrome learns about the explosion that changed the life of ‘Alison North’ forever. But who leaked the OTIS file to the inquiry, and what links this tale of delayed revenge to the attack on retired spy Max Janacek?

Mick Herron’s new standalone thriller is read by Nina Sosanya.

Abridged by Eileen Horne
Producer: Eilidh McCreadie

Mick Herron is the bestselling author of the Slough House thrillers and Zoe Boehm series, and winner of the CWA Gold Dagger. His books featuring Jackson Lamb have been adapted for TV as the ‘Slow Horses’ series starring Gary Oldman and Kristin Scott Thomas.