The old man pushed himself to his feet. "It was accidental. I've dabbled in amateur photography for years." He limped over to his camera. "Not only took pictures--developed my own." He paused and looked very directly at Joey. "About six years ago, I began experimenting with a new developer." Ewing's eyes were disturbing. Joey looked away. "You had used commercial developers before?" "Yes." Ewing gripped the camera. "I wanted a developer that would give a more sharply defined image. I tried fifty different formulae--never quite achieving what I had in mind." Joey lit a cigarette. "You must have spent a lot of time on it." "I had retired. I live alone here. No other interests." The phrases came in little gasps, as if Ewing had to force the words between his lips. "Made no progress. And then, I tried Formula #53." The pause indicated Joey was expected to react. "Formula #53?" Ewing moved back to the light. "My fifty-third experiment. Radical departure from commercial developers." "It succeeded?" "It succeeded, Mr. Barrett, but not in the way I had imagined." The fish-white hands rested on the photo album. "I developed some film in Formula #53 and received the shock of my life." His voice was a whisper. "The pictures on the negative were NOT the pictures I had taken." He paused to watch the effect on Barrett. Joey scratched his ear. "You took one set of pictures and the negatives you got were of another set?" "I know what you're thinking," Ewing said. "What I thought at first: that I'd gotten hold of the wrong film. But that wasn't the answer. The same thing happened again and again. Whenever I used Formula #53 as my developer, I produced a strange set of pictures." Joey stood up nervously. The old boy was crazier than he had first guessed. Humoring him seemed the only answer. "That's incredible." Ewing nodded excitedly. "I thought I was losing my mind. But, slowly, I began to realize what had happened." "What?" The old man sank into the chair by the table. "School of modern philosophers ... teaches all time is co-existent." Joey felt almost sorry for the old boy. He was so much in earnest about his crack-brained discovery. "Time ... co-existent?" "Past, present, future--all simultaneous. Running along in parallel dimensions." * * * * * Joey tried a laugh. "Little rough for me, Mr. Ewing," he apologized. "Look," he went on quickly, "I've been thinking...." But Ewing wasn't listening. "Simplify it. At this moment, Caesar crossing the Rubicon; Columbus is discovering America; you and I are talking; a man in the twenty-fifth century is rocketing toward Mars." "I see what you mean." Ewing was holding the old fashioned photo album in his lap. "Well, I know now that what I've stumbled into with Formula #53 is another dimension in time." "You mean that ... that you can take a picture of what's happening in another time?"