Overview

• Clown Town is scheduled for release on September 11, 2025, marking the ninth entry in Mick Herron’s Slough House series.
• The novel investigates a real-life intelligence operation during the Troubles and its decades-long personal fallout.
• Apple TV+ confirms Slow Horses Season 5 will debut on September 25, 2025, aligning the series launch with the new book.
• Seasons 6 and 7 have already been commissioned to adapt the franchise’s sixth through eighth novels.
• Central characters River Cartwright and Diana Taverner drive the story through archival investigations and strategic blackmail.