.the breathing difficulty continued, and he couldn't get up. It seemed as if he was being held down. He felt a sense of panic. But at the same time he felt as if he was drifting into a deeper state of sleep. For a short time he fought these conflicting sensations, but eventually he surrendered to the latter feeling. One by one, prominent staff physicians, who also are members of the Medical Executive Committee of Illinois General Hospital in Chicago, are dying under mysterious circumstances. When Dr. Harrison is found dead in his home, it appears to be a tragic heart attack. Then Dr. Spann dies