'THE MYSTERY OF THE SECOND CUCUMBER,' so it ran. A pleasing title. Anthony Eastwood felt that anyone reading that title would be at once intrigued and arrested by it. 'The Mystery of the Second Cucumber,' they would say. 'What can that be about? A cucumber? The second cucumber? I must certainly read that story.' And they would be thrilled and charmed by the consummate ease with which this master of detective fiction had woven an exciting plot round this simple vegetable.