Part 13

"Not if the subject is painful," Entrefort said.

"It is not," protested Arnold; "why do you think the blow was struck by a woman?"

"Because, first, no man capable of being an assassin would use so gaudy and valuable a weapon; second, no man would be so stupid as to carry so antiquated and inadequate a thing as a stiletto, when that most murderous and satisfactory of all penetrating and cutting weapons, the bowie-knife, is available. She was a strong woman, too, for it requires a good hand to drive a stiletto to the guard, even though it miss the sternum by a hair's breadth and slip between the ribs, for the muscles here are hard and the intercostal spaces narrow. She was not only a strong woman, but a desperate one also."

"That will do," said Arnold. He beckoned me to bend closer. "You must watch this man; he is too sharp; he is dangerous."

"Then," resumed Entrefort, "I shall tell you what I intend to do. There will undoubtedly be inflammation of the aorta, which, if it persist, will cause a fatal aneurism by a breaking down of the aortal walls; but we hope, with the help of your youth and health, to check it.

"Another serious difficulty is this: With every inhalation, the entire thorax (or bony structure of the chest) considerably expands. The aorta remains stationary. You will see, therefore, that as your aorta and your breast are now held in rigid relation to each other by the stiletto, the chest, with every inhalation, pulls the aorta forward out of place about half an inch. I am certain that it is doing this, because there is no indication of an escape of arterial blood into the thoracic cavity; in other words, the mouths of the two aortal wounds have seized upon the blade with a firm hold and thus prevent it from slipping in and out. This is a very fortunate occurrence, but one which will cause pain for some time. The aorta, you may understand, being made by the stiletto to move with the breathing, pulls the heart backward and forward with every breath you take; but that organ, though now undoubtedly much surprised, will accustom itself to its new condition.

"What I fear most, however, is the formation of a clot around the blade. You see, the presence of the blade in the aorta has already reduced the blood-carrying capacity of that vessel; a clot, therefore, need not be very large to stop up the aorta, and, of course, if that should occur death would ensue. But the clot, if one form, may be dislodged and driven forward, in which event it may lodge in any one of the numerous branches from the aorta and produce results more or less serious, possibly fatal. If, for instance, it should choke either the right or the left carotid, there would ensue atrophy of one side of the brain, and consequently paralysis of half the entire body; but it is possible that in time there would come about a secondary circulation from the other side of the brain, and thus restore a healthy condition. Or the clot (which, in passing always from larger arteries to smaller, must unavoidably find one not sufficiently large to carry it, and must lodge somewhere) may either necessitate amputation of one of the four limbs or lodge itself so deep within the body that it cannot be reached with the knife. You are beginning to realize some of the dangers which await you."

Arnold smiled faintly.

"But we shall do our best to prevent the formation of a clot," continued Entrefort; "there are drugs which may be used with effect."

"Are there more dangers?"

"Many more; some of the more serious have not been mentioned. One of these is the probability of the aortal tissues pressing upon the weapon relaxing their hold and allowing the blade to slip. That would let out the blood and cause death. I am uncertain whether the hold is now maintained by the pressure of the tissues or the adhesive quality of the serum which was set free by the puncture. I am convinced, though, that in either event the hold is easily broken and that it may give way at any moment, for it is under several kinds of strains. Every time the heart contracts and crowds the blood into the aorta, the latter expands a little, and then contracts when the pressure is removed. Any unusual exercise or excitement produces stronger and quicker heart-beats, and increases the strain on the adhesion of the aorta to the weapon. A fright, fall, a jump, a blow on the chest--any of these might so jar the heart and aorta as to break the hold."

Entrefort stopped.

"Is that all?" asked Arnold.

"No; but is not that enough?"

"More than enough," said Arnold, with a sudden and dangerous sparkle in his eyes. Before any of us could think, the desperate fellow had seized the handle of the stiletto with both hands in a determined effort to withdraw it and die. I had had no time to order my faculties to the movement of a muscle, when Entrefort, with incredible alertness and swiftness, had Arnold's wrists. Slowly Arnold relaxed his hold.

"There, now!" said Entrefort, soothingly; "that was a careless act and might have broken the adhesion! You'll have to be careful."

Arnold looked at him with a curious combination of expressions.

"Dr. Entrefort," he quietly remarked, "you are the devil."

Bowing profoundly, Entrefort replied: "You do me too great honor;" then he whispered to his patient: "If you do that"--with a motion towards the hilt--"I will have her hanged for murder."

Arnold started and choked, and a look of horror overspread his face. He withdrew his hands, took one of mine in both of his, threw his arms upon the pillow above his head, and, holding my hand, firmly said to Entrefort,--

"Proceed with your work."

"Come closer, Hippolyte," said Entrefort, "and observe narrowly. Will you kindly assist me, Dr. Rowell?" That gentleman had sat in wondering silence.

Entrefort's hand was quick and sure, and he used the knife with marvellous dexterity. First he made four equidistant incisions outward from the guard and just through the skin. Arnold held his breath and ground his teeth at the first cut, but soon regained command of himself. Each incision was about two inches long. Hippolyte shuddered and turned his head aside. Entrefort, whom nothing escaped, exclaimed,--

"Steady, Hippolyte! Observe!"

Quickly was the skin peeled back to the limit of the incisions. This must have been excruciatingly painful. Arnold groaned, and his hands were moist and cold. Down sank the knife into the flesh from which the skin had been raised, and blood flowed freely; Dr. Rowell handled the sponge. The keen knife worked rapidly. Arnold's marvellous nerve was breaking down. He clutched my hand fiercely; his eyes danced; his mind was weakening. Almost in a moment the flesh had been cut away to the bones, which were now exposed,--two ribs and the sternum. A few quick cuts cleared the weapon between the guard and the ribs.

"To work, Hippolyte--be quick!"

The machinist had evidently been coached before he came. With slender, long-fingered hands, which trembled at first, he selected certain tools with nice precision, made some rapid measurements of the weapon and of the cleared space around it, and began to adjust the parts of a queer little machine. Arnold watched him curiously.

"What----" he began to say; but he ceased; a deeper pallor set on his face, his hands relaxed, and his eyelids fell.