British spy master Mick Herron returns with an explosive novella set in the same world as his multiple CWA Dagger-winning Slough House series John Bachelor is the saddest kind of spy: not a joe in the field, not even a desk jockey, but a milkman--a part-time pension administrator whose main job is to check in on aging retired spies. Late in his career and having lost his wife, his house, and his savings after a series of unlucky choices,...