"What are you going to do?" asked Arnold.

"Save your life, if possible."

"How? Tell me all about it."

"Must you know?"

"Yes."

"Very well, then. The point of the stiletto has passed entirely through the aorta, which is the great vessel rising out of the heart and carrying the aerated blood to the arteries. If I should withdraw the weapon the blood would rush from the two holes in the aorta and you would soon be dead. If the weapon had been a knife, the parted tissue would have yielded, and the blood would have been forced out on either side of the blade and would have caused death. As it is, not a drop of blood has escaped from the aorta into the thoracic cavity. All that is left for us to do, then, is to allow the stiletto to remain permanently in the aorta. Many difficulties at once present themselves, and I do not wonder at Dr. Rowell's look of surprise and incredulity."

That gentleman smiled and shook his head.

"It is a desperate chance," continued Entrefort, "and is a novel case in surgery; but it is the only chance. The fact that the weapon is a stiletto is the important point—a stupid weapon, but a blessing to us now. If the assassin had known more she would have used——"

Upon his employment of the noun "assassin" and the feminine pronoun "she," both Arnold and I started violently, and I cried out to the man to stop.

"Let him proceed," said Arnold, who, by a remarkable effort, had calmed himself.