"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."