At a trot, they crossed the room, ducked through the door. They heard the door slam behind them and turned to look at the old man.
He stared back at them. "You are human beings," said his thoughts. "People of my own race. But from long ago.”
"That's right," said Gary. "From many millions of years ago.”
They sensed something that almost approached disbelief in the old man's thoughts.
"And you seek me?”
"We seek someone," said Gary. "Someone who may tell us something that may save the universe.”
"Then it must be me," said the old man, "because I'm the only one left.”
"The only one left!" cried Gary. "The last man?”
"That's right," said the old man, and he seemed almost cheerful about it.
"There were others but they died. All men's life spans must sometime come to an end.”