Mr William Whittlestaff was strolling very slowly up and down the long walk at his country seat in Hampshire, thinking of the contents of a letter which he held crushed up within his trousers' pocket. He always breakfasted exactly at nine, and the letters were supposed to be brought to him at a quarter past. The postman was really due at his hall-door at a quarter before nine; but though he had lived in the same house for above fifteen years, and...