e 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?"

Ewing nodded. "I know it's difficult to grasp, Mr. Barrett." He held out
the plush-covered album. "But I have proof."

Joey stepped toward the