The Red-Headed League (Unabridged‪)‬

The Red-Headed League - Holmes and Doyle pull out all the stops for this classic Conan Doyle story. Of all the many excellent tales in life of Sherlock Holmes this must rate amongst the most perplexing of them all. Why would a pawnbroker have to copy out in long-hand the complete Encyclopedia Britannica, word for word, and what bearing can the knees of a man's trousers have on the case?