She--that is, her agent--was in some sort of a room, giving instructions to a group of white-clad figures. Before Billie could concentrate upon what was being said the talk ceased; and next moment, amid perfect silence, the agent bent over something which lay on a high table. Whereupon Billie got a severe jolt. For, unless she was most woefully mistaken, the thing she was now looking at was the unconscious form of a patient; the place was the operating-room of a hospital; and the eyes she was using belonged to a surgeon. She watched breathlessly. The surgeon's nimble fingers proceeded with the utmost unconcern to open wide the patient's torso. Other pairs of hands, belonging to nurses, aided in this; and Billie found the intricate process decidedly interesting rather than otherwise. Of course she was spared the odor of blood. As soon as the ribs were entirely displaced, the lungs were carefully laid aside. Extraordinary delicacy seemed called for here. Billie shortly began to wonder if it were not high time to quit when her agent, assisted as before, calmly exposed the patient's heart to full view. Billie could see it throbbing; more, she could hear it. She watched in wonder for the next step. They consisted in forcibly untangling the mass of tubes and arteries all about the organ. Presently everything was clear; and then, without delay, the nurses brought forward a strange-looking device. It was of silver, shaped like a flattened egg, and a trifle smaller than that laboring, human blood-pump; To it was attached a pair of long, flexible, silver pipes, which led to Billie knew not where. And near one extremity the egg was provided with eight curious nozzles. At times the flying hands partly interfered with Billie's vision; yet she saw nearly all that amazing process, from beginning to end. To put it briefly, the eight nozzles were boldly introduced, almost at a single operation, into tiny incisions in the eight corresponding tubes of the heart. In they were forced, until they filled the arteries and veins; and once inserted, silver clamps were instantly tightened on the outsides of the tubes. All this was done in two or three seconds; and when all was complete, the heart itself had been entirely isolated and its place absolutely taken by that little silver egg. The patient gave no sign that anything out of the ordinary had occurred. Not a drop of blood had been spilled except in the process of getting at the organ; but now, with a few deft motions of certain instruments, the heart was sliced away from the surrounding tissues, the tubes were severed, and the whole powerful pump, still beating faintly, was removed from the body altogether.