"Slow Horses" is a novel by Mick Herron, the first in his "Slough House" series. It is a spy thriller, featuring a group of disgraced MI5 agents who are relegated to the titular "Slough House" for their various missteps. The novel has received generally positive reviews for its sharp writing, intricate plotting, and well-developed characters. Critics have praised Herron's ability to blend humor and suspense, and many have noted the series' sharp commentary on contemporary politics and society. If you like the spy thriller, suspense, and dark comedy genre, it might be a great choice for you to check out.