Dr Watson delves into his battered dispatch-box in the vaults of Cox & Co and draws out fifteen more cases from the career of his friend the eminent consulting detective Sherlock Holmes. Why does a man wear a yellow top hat to feed the pigeons in Trafalgar Square? Why should a dead tree affect a son's inheritance? How can a cyclist disappear in the snow without leaving any traces? The answers to these and many other enigmas are revealed by the master sleuth in this collection of new stories written in the authentic manner.