The man moved on as he spoke, and the Doctor moved with him, for his arm was still clasped by the stranger's strong supple fingers. But outside the archway he stopped.

"Stay! Why do you come to me? Have you no regular medical attendant?"

"We have not, sir. As to why I come to you—I have heard of you, that is all. I reached your house almost as you left it, and have followed you, and waited. Pray come, sir, I entreat you. There is a carriage waiting here."

A carriage was standing just outside the arch—an ordinary-looking close carriage, drawn by a light-colored horse, and driven by a coachman who was singularly muffled up, considering the heat of the night. The Doctor mechanically noticed that there were no lamps to the carriage, as, in obedience to the eager pressure of his companion's hand, he got in. The other followed, shutting the door smartly behind him, and the vehicle started instantly.

Doctor Brudenell, leaning back in his corner, looked curiously—as well as the dimness of the carriage would let him—with the keen eyes of a man accustomed to weigh and observe, at his companion, who, with his hands in his pockets and his hat pulled down over his brows, appeared to be half asleep. He was a very handsome man, that was certain—face dark and clear cut, complexion swarthy, figure at once lithe and muscular, and some years under thirty. There was a turn of the throat, a trick of movement, when he presently changed his position restlessly, that perplexed the watcher. The Doctor fancied that he must have seen this man before, but he could not remember where.

"Is it far?" he asked suddenly. It must be, he thought. They had been in the carriage at least a quarter of an hour; the horse had been going at a swift trot, and now there was no sign of slackening speed.

The young man started, and opened his eyes.

"It is not now, sir. We shall soon be there—in time, I hope."

He stamped twice upon the floor of the carriage impatiently, as though in anxiety; but the sound seemed to act as a signal, for the driver instantly whipped up the horse, and the speed was increased—almost doubled. The curtains of the windows were down, and the Doctor drew one of them aside and peered out. They were in a street he did not know, badly paved, badly lighted, squalid, flanked by rows of high mean houses, half of which seemed empty, for hardly a light shone from their windows. He looked round.

"Where are we?"