"Is the operation over, sir?"

"Yes," curtly answered Mark.

"Was it successful?"

"When did you ever know Dr. Davenal unsuccessful?" retorted Mr. Cray. "That was successful enough."

It never occurred to Julius Wild that the stress upon the word "that" implied, or could imply, that though the operation had been successful, something else was not. Perhaps it was half a subterfuge in Mark Cray to have said it. The young man asked no more questions. Finding himself so snubbed, he desisted, and walked behind in silence. Neither of them told the unhappy truth to him. Dr. Davenal may have been too pained, too shocked to speak; Mark Cray's conscience too suggestive. Nay, Dr. Davenal may not have seen his way clear to speak at all. If he was to conceal the culpability of Mark Cray, the less he opened his mouth upon the point, even by a word, the better.

Suddenly Mark turned round. "You are not wanted, Mr. Wild. There's nothing more tonight."

The young man took the hint at once, wished them good-evening, and walked off to the Infirmary, there to leave certain articles that he had been carrying. He observed that Dr. Davenal, usually so courteous, never answered him, never gave him the good-evening in reply to his.

The two surgeons walked on in silence. The streets were nearly deserted; and the sound of praise and prayer came upon their ears from the lighted places of worship as they passed them. The evening was a warm one, and the doors of the churches and chapels stood open. They never spoke a word, one to the other. Mark Cray felt as he had probably never felt in his life--ashamed, repentant, grieved, humble. He was guilty of the blood of a fellow-creature. He called it a "mistake." A mistake in one sense it undoubtedly was, but a wicked and a wilful one. Dr. Davenal felt it to be both: felt that the giving of the chloroform stealthily, in direct opposition to his expressed opinion, deserved a worse name; and, though he had promised not to betray Mark, he could not just yet subdue his own feelings, and speak to him in a friendly tone. Thus in silence they reached the doctor's gate.

"Goodnight," said he, turning in at it.

"Goodnight," replied Mark, continuing his way. But--and he felt it--there had been no invitation to him to enter, no pleasant look, no shake of the hand.