Stern returned the look coldly. "There's a store where you can buy some about three blocks down the road."
"Is that the room where he's expected to materialize with his machine?" The reporter pointed to an inner door.
"Yes. Dr. Curtis wanted to be sure no one would be injured. This inner circular room was built first; then he had the outer wall put up as an added precaution. The circular passageway we're in leads all around the old room, but this doorway is the only entrance."
"And what are those holes in the top of the door for?"
"If he returns, we can tell by the displaced air rushing out. Then the door will open automatically."
"And when is the return scheduled for?" asked the reporter.
"Three-forty-seven and twenty-nine seconds."
"If it happens," the reporter added skeptically. "And if it doesn't, we have to wait another year."
"Optimum conditions occur just once a year."
"Well, I'm going out to get some cigarettes. I've got time ... and probably nothing to wait for. I'll return though."