The catastrophe was first sensed by a hobbyist about a day after it occurred. It was just that certain experiments did not act right and the proper results were not forthcoming. And on the second day (Monday) there were probably a hundred notations of quite unusual and unstatistical behavior, but as yet the pattern was not at all suspected.
On the third day a cranky and suspicious laboratory worker went to a supply house with the angry charge that he had been sold sterile mice. This was something that could not be ignored, and it is what brought the pattern of the whole thing into the open, with corroboration developing with explosive rapidity. Not completely in the open, of course, for fear of panic if it reached the public. But throughout the learned fraternity the news went like a seismic shock.
When it did reach the public a week later, though, it was greeted with hoots of laughter. The people did not believe it.
"The cataloguing of evidence becomes tiresome," said Director Concord of the newly originated Palingenesia Institute. "The facts are incontrovertible. There has been a loss of the power to conceive in sea squirt, lancelet, hag fish, skate, sea cat, fish, frog, alligator, snake, turtle, seal, porpoise, mouse, bat, bird, hog, horse, monkey, and man. It happened suddenly, perhaps instantaneously. We cannot find the cure. Yet it is almost certain that those children already in the womb will be the last ever born on Earth. We do not know whether it is from a natural cause or an enemy has done this to us. We have, for ten months, tested nearly everything in the world and we have found no answer. Yet, oddly enough, there is no panic."
"Except among ourselves," said Appleby, his assistant, "whose province is its study. But the people have accepted it so completely that their main interest now is in the world sweepstakes, with the total sums wagered now in the billions."
"Yes, the betting on the last child to be born in the world. It will prove one point, at least. The old legal limit on posthumous paternity was a year and a day. Will it be surpassed? The Algerian claimant on all evidence has nearly three months to go. And the betters on the Afghan have not yet given up. The Spanish Pretender is being delayed, according to rumor, medically, and there are some pretty angry protests about this. It is not at all fair; we know that. But then a comprehensive set of rules was never drawn up to cover all nations; Spain simply chose not to join the pact. But there may be trouble if the Spanish backers try to collect."
"And there is also a newly heard of Mexican claimant."
"I give little credit to this Juanita-Come-Lately. If she was to be a serious contestant, why was she not known of before?"
The Algerian claimant, however, was the winner. And the time was an unbelievable three hundred and eighty-eight days. So the last child on Earth, in all likelihood, had been born.