It was impossible for Mark Cray to deny that incapacity had attacked him; that Lady Oswald under his hands would have been in the greatest danger. Its cause he could not account for: but that common expression, "losing all presence of mind," would best describe it as it really was, and as it had appeared to Dr. Davenal. The drops of sweat stood out on his brow now as large as peas.

"The woman's fall startled me," he attempted to say. "At such a moment it takes but little to unnerve a man."

"Then, if so, he is not fit for a surgeon," returned Dr. Davenal. "Mark Cray," he continued, gravely and firmly, but not unkindly, "you must never in my presence attempt a critical operation again. Recollect that."

Meanwhile their whole attention was being given to Lady Oswald; their best efforts exerted to arouse her from the effects of the chloroform. All in vain, all useless; it had done its work too effectually.

By degrees the horror of the conviction that she could not be aroused--never more would be aroused--came pressing upon them deeper and deeper. Mark Cray wiped his hot face, and felt that he would give all he was worth to recall that one act of his--the surreptitiously conveying the chloroform to the house, which he had himself so successfully accomplished, and regarded as a cause of self-congratulation. Why had he not attended to the experienced opinion of Dr. Davenal--that Lady Oswald was one of those upon whom chloroform was not unlikely to be fatal? That it would be fatal in this case, Mark felt as certain now as if the breath had actually passed for ever from her body. A horrible fear came over him, and he once more lost all calmness, all self-possession.

"Dr. Davenal, for the love of God, do not betray me! Do not let it go forth to the world as my wilful act--one you warned me against. It was a dreadful mistake. I shall carry it about with me in my heart for ever; but do not betray me to the world!"

He had seized the doctor's hands, and was pressing them nervously in his. His troubled face gazed imploringly upwards; his wailing tone of repentance struck sadly on the ear. Dr. Davenal did not immediately speak, and Mark Cray resumed.

"For Caroline's sake," he entreated. "If this mistake becomes known in all its unhappy details, my professional doom is sealed. Never again, so long as I live, as you and I are together, will I attempt to act on my opinion in opposition to yours. Be merciful to us, Dr. Davenal, and, for her and my sake, conceal it from the condemning world!"

And Dr. Davenal yielded. Ever merciful, ever striving to act in accordance with those great precepts of love and mercy which One came down eighteen hundred years ago to teach, he yielded to the prayer of the unhappy and agitated man before him. His own partner--Caroline's husband; no, he could not, would not, bring upon him the obloquy of the world.

"I will keep the secret, Mark Cray. Be easy. You have my promise."