 What are the four hypotheses Charles has about how he might have survived the plague?
There should be an epitaph for every man, big or little, but a really grand and special one for Loner Charlie. [Transcriber's Note: This etext was produced from Planet Stories Fall 1954. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] A year ago she had been unattainable, a face to conjure with in erotic dreams, far beyond his ken. Charles looked at the woman again and decided that she still looked beautiful in spite of the harshness of the room's lighting. He touched buttons by the edge of the bed and the illumination quieted to a soft glow, wrapping her in a radiant halo. New York lay quietly below him. It was the hour of indecision when day has not quite made up its mind to leave and night has not yet attacked in force. I just don't know—" A paroxysm of sobbing shook his body. Trembling, he dropped to his knees, his head against the cold firmness of the sill, his hands clutched tightly around the jagged edges of the window pane. In spite of the sharp pain that raced through his system, in spite of the bright, warm, red stream that trickled down his face, he knelt by the window for several minutes. " Buildings were taller, men were healthier, most of the problems of humanity seemed licked, or nearly so. The largest cotton crop ever was forecast and rumors from Mexico had it that no one had died from scorpion bite in several weeks. A month later the meat animals, the birds and the household pets began dropping as rapidly as the flies which had dropped earlier. Congress was called into special session, as were all of the national governments around the world. Within a year it was obvious to everyone that man was the only animal left on earth. The panic which had begun with the death of the animals was quieted somewhat by the fact that humans seemed immune to the pandemic. But the lakes full of dead fish caused a great stink and residents along the coasts began to move inland. Then just one year ago, the first human became infected with the strange malady. Within six months, half of the world's population was gone. Less than a month ago no more than a few thousand people remained in New York. And now.... "I've got to find out," Charles told himself. Before the plague the Bureau of Vital Statistics had been one of man's crowning achievements.
 He’s too normal to get it; pure chance; he’s a saint; immunity
 He’s too strange; he’s a prophet; the odds were against him; he got a vaccine  He’s a nice guy; pure chance; he’s a prophet; he received medical treatment.  He’s healthier than everybody; pure chance; he knows a good doctor; he wore a mask  He’s too normal to get it; pure chance; he’s a saint; immunity