As we drove up to the porticoed front door, I observed in front of it, beside the tennis lawn, the black tool-house and the pedestalled sundial with which we had such strange associations. A dapper little man, with a quick, alert manner and a waxed moustache, had just descended from a high dog-cart. He introduced himself as Inspector Martin, of the Norfolk Constabulary, and he was considerably astonished when he heard the name of my companion. “ Why, Mr. Holmes, the crime was only committed at three this morning. How could you hear of it in London and get to the spot as soon as I?” “ I anticipated it. I came in the hope of preventing it.” “ Then you must have important evidence, of which we are ignorant, for they were said to be a most united couple.” “ I have only the evidence of

