"Okay, we'll plug it in."
He invited me to step down and turn on the switches. I looked at Slim.
He nodded. After all, there was nothing else to do. I went.
Some of the tubes crackled and then settled down to a steady green
glow, and one bank showed purple. Then the lawyer said, "Now, do you
mean to tell me you can tune this contraption in on a man's brain and
find him anywhere in the past?" He sounded completely skeptical.
"Within three months," I said defiantly.
"For instance, you testified that Tom Ellingbery was riding the roller
coaster on the night of July the Fourth with the girl who has been
named in this case. You saw this on this screen?"
"Yes."
"Can you tune it in again?"
* * * * *
Well, I knew this was all preliminary. It would take something
absolutely dynamic to convince Judge Monday that the Brain-Finder
was the real thing and not a fake. So I wasn't worrying--yet.
"Yes," I said, and set the dials to Tom Ellingbery's brain-waves. I
picked up Tom and the bleached blonde just as they stepped into the
roller-coaster car, and followed them around the ride. It wasn't very
sensational; she screamed and hid her eyes and grabbed Tom around the
neck. Standard technique.
Then the lawyer said, "Can you pick up your own brain-wave on this
thing?"
"Yes."
"What were you doing on the night of July the Fourth?"
"I was--" I swallowed. "I was riding the roller coaster."