It was only ten o'clock. The dull roar of the traffic which converged all day upon London Bridge had died away now to a mere confused murmur. It was raining heavily, and the gas shone dimly through the streaked and dripping glass, throwing little circles upon the glistening cobblestones. The air was full of the sounds of the rain, the thin swish of its fall, the heavier drip from the eaves, and the swirl and gurgle down the two steep gutters and through the sewer grating. There was only one figure in the whole length of Scudamore Lane. It was that of a man, and it stood outside the door of Dr. Horace Selby.
He had just rung and was waiting for an answer. The fanlight beat full upon the gleaming shoulders of his waterproof and upon his upturned features. It was a wan, sensitive, clear-cut face, with some subtle, nameless peculiarity in its expression, something of the startled horse in the white-rimmed eye, something too of the helpless child in the drawn cheek and the weakening of the lower lip. The man-servant knew the stranger as a patient at a bare glance at those frightened eyes. Such a look had been seen at that door many times before.
"Is the doctor in?"
