Case of the Michaelmas Goose

Detective-Sergeant Martin christened him ''Whiskers'', but nobody could be certain who he really was. That was not the only question that confronted Inspector Charlton of the C.I.D. How, for instance, did young Courtenay Harbord die? And why? Who was Number 106 and in what way did Mr. Ninian McCullough upset the apple-cart? The fourth Duke of Redbourn had built Etchworth Tower on the summit of Hig...