Synopsis: A man invents a serum that will allow humans to live for a thousand years. The only problem is that he's produced enough for only one man. The scientific community advises him to therefore destroy the serum, as they fear its existence in such a small quantity will cause people to fight over who gets to use it.
Not wishing to let his discovery go to such waste, the inventor downs the serum himself.
The serum works, but within the first 100 years, the inventor realizes the "trap" of living for a thousand years: it's boring. He can't form personal relationships, because it's painful watching the people he loves die. He reaches a point where he loses the desire to learn more or do more, because it's all been learnt and done before.
In the second half of his life, he starts to see the world around him slowly decay because of overpopulation. Eventually discoveries are made which will allow humans to abandon the earth for a new, larger world. But by then he's over 900 years old and the serum is starting to wear off. He knows he's finally going to die and doesn't wish to leave his home. A beautiful woman is given the opportunity to leave, but she, too, refuses to abandon Earth. They are thus left behind, the only two humans on planet Earth. Finally, he has a purpose in life again.
"We have a whole new world to rebuild, Adam," she says.
"And we'll do it together, my darling Eve," he answers.
The readers are thus left to ponder whether this was a tale of the future . . . or the past.