“You did excellently well. What happened next?” “The woman came out, but I had hid myself in a doorway. Her suspicions had been aroused, I think, for she looked round her. Then she called a cab and got in. I was lucky enough to get another and so to follow her. She got down at last at No. 36 Poultney Square, Brixton. I drove past, left my cab at the corner of the square, and watched the house.” “Did you see anyone?” “The windows were all in darkness save one on the lower floor. The blind was down, and I could not see in. I was standing there, wondering what I should do next, when a covered van drove up with two men in it. They descended, took something out of the van, and carried it up the steps to the hall door. Mr. Holmes, it was a coffin.” “Ah!” “For an instant I was on the point o