UP WARM. THEN GO SCRUB YOUBSELF AND WEAR A MASK: WE.

DON'T KNOW YET HOW YOU CATCH IT. Pa.s.s IT ALONG, ED.".

"NO NEW LANDINGS REPORTED ANYWHERE ON THIS CON-.

TINENT. THE PARATROOPERS WHO ESCAPED THE ORIGINAL.

SLAUGHTER ARE THOUGHT TO BE HIDING OUT IN THE POCONOS.

SHOOTBUT BE CAREFUL; IT MIGHT BE AUNT TESSIE. OFF AND.

CLEAR, UNTIL NOON TOMORROW".

The curves were turning up again. There was no longer doubt in Breen's mind about that. It might not even be necessary to stay up here in the Sierra Madres through the winterthough he rather thought they would. He had picked their spot to keep them west of the fallout; it would be silly to be mowed down by the tail of a dying epidemic, or be shot by a nervous vigilante, when a few months' wait would take care of everything.

Besides, lie had chopped all that firewood. He looked at his calloused handshe had done all that work and, by

George, he was going to enjoy the benefits!

He was headed out to the hogback to wait for sunset and do an hour's reading; he glanced at his car as he pa.s.sed it, thinking that he would like to try the radio. He suppressed the yen; two thirds of his reserve gasoline was gone already just from keeping the battery charged for the radioand here it was only December. He really ought to cut it down to twice a week. But it meant a lot to catch the noon bulletin of Free America and then twiddle the dial a few minutes to see what else he could pick up.

But for the past three days Free America had not been on the airsolar static maybe, or perhaps just a power failure.

But that rumor that President Brandley had been a.s.sa.s.si- natedwhile it hadn't come from the Free radio . . . and it hadn't been denied by them, either, which was a good sign.

Still, it worried him.

And that other story that lost Atlantis had pushed up dur- ing the quake period and that the Azores were now a little continentalmost certainly a hang-over of the "silly season" but it would be nice to hear a follow-up.

Rather sheepishly he let his feet carry him to the car.

It wasn't fair to listen when Meade wasn't around. He warmed it up, slowly spun the dial, once around and back.

Not a peep at full gain, nothing but a terrible amount of static. Served him right.

He climbed the hogback, sat down on the bench he had dragged up theretheir "memorial bench," sacred to the memory of the time Meade had hurt her knees on the gravel sat down and sighed. His lean belly was stuffed with veni- son and corn fritters; he lacked only tobacco to make him completely happy. The evening cloud colors were spectacu- larly beautiful and the weather was extremely balmy for

December; both, he thought, caused by volcanic dust, with perhaps an a.s.sist from atom bombs.

Surprising how fast things went to pieces when they started to skid I And surprising how quickly they were go- ing back together, judging by the signs. A curve reaches trough and then starts right back up. World War III was the shortest big war on recordforty cities gone, counting

Moscow and the other slave cities as well as the American onesand then whoosh! neither side fit to fight. Of course, the fact that both sides had thrown their ICBMs over the pole through the most freakish arctic weather since Peary invented the place had a lot to do with it, he supposed. It was amazing that any of the Russian paratroop transports had gotten through at all.

He sighed and pulled the November 1951 copy of the

Western Astronomer out of his pocket. Where was he? Oh, yes, Some Notes on the Stability of G-Type Stars with

Especial Reference to Sol, by A. G. M. Dynkowski, Lenin

Inst.i.tute, translated by Heinrich Ley, F. R. A. S. Good boy,

Skisound mathematician. Very clever application of har- monic series and tightly reasoned. He started to thumb for his place when he noticed a footnote that he had missed.

Dynkowski's own name carried down to it: "This mono- graph was denounced by Pravda as romantic reactionariism shortly after it was published. Professor Dynkowski has been unreported since and must be presumed to be liqui- dated,"

The poor geekl Well, he probably would have been atom- ized by now anyway, along with the goons who did him in.

He wondered if they really had gotten all the Russki para- troopers? Well, he had killed his quota; if he hadn't gotten that doe within a quarter mile of the cabin and headed right back, Meade would have had a bad time. He had shot them in the back, the swinel and buried them beyond the woodpileand then it had seemed a shame to skin and eat an innocent deer while those lice got decent burial.

Aside from mathematics, just two things worth doing- kill a man and love a woman. He had done both; he was rich.

He settled down to some solid pleasure. Dynkowski was a treat. Of course, it was old stuff that a G-type star, such as the sun, was potentially unstable; a G-O star could ex- plode, slide right off the Russell diagram, and end up as a white dwarf. But no one before Dynkowski had defined the exact conditions for such a catastrophe, nor had any- one else devised mathematical means of diagnosing the in- stability and describing its progress.

He looked up to rest his eyes from the fine print and saw that the sun was obscured by a thin low cloudone of those unusual conditions where the filtering effect is just right to permit a man to view the sun clearly with the naked eye.

Probably volcanic dust in the air, he decided, acting al- most like smoked gla.s.s.

He looked again. Either he had spots before his eyes or that was one fancy big sun spot. He had heard of being able to see them with the naked eye, but it had never hap- pened to him. He longed for a telescope.

He biinked. Yep, it was still there, upper right. A big spotno wonder the car radio sounded like a Hitler speech.

He turned back and continued on to the end of the article, being anxious to finish before the light failed. At first his mood was sheerest intellectual pleasure at the man's tight mathematical reasoning. A 3% imbalance in the solar constantyes, that was standard stuff; the sun would nova with that much change. But Dynkowski went further; by means of a novel mathematical operator which he had dubbed "yokes" he bracketed the period in a star's history when this could happen and tied it down further with sec- ondary, tertiary, and quaternary yokes, showing exactly the time of highest probability. Beautiful) Dynkowski even as- signed dates to the extreme limit of his primary yoke, as a good statistician should.

But, as he went back and reviewed the equations, his mood changed from intellectual to personal. Dynkowski was not talking about just any G-O star; in the latter part he meant old Sol himself, Breen's personal sun, the big boy out there with the oversized freckle on his face.

That was one h.e.l.l of a big freckle! It was a hole you could chuck Jupiter into and not make a splash. He could see it very clearly now.

Everybody talks about "when the stars grow old and the sun grows cold"but it's an impersonal concept, like one's own death. Breen started thinking about it very personally.

How long would it take, from the instant the imbalance was triggered until the expanding wave front engulfed earth?

The mechanics couldn't be solved without a calculator even though they were implicit in the equations in front of him.

Half an hour, for a horseback guess, from incitement until the earth went phutti

It hit him with gentle melancholy. No more? Never again? Colorado on a cool morning . . . the Boston Post road with autumn wood smoke tanging the air . . . Bucks county bursting in the spring. The wet smells of the Fulton

Fish Marketno, that was gone already. Coffee at the

Morning Call. No more wild strawberries on a hillside in

Jersey, hot and sweet as lips. Dawn in the South Pacific with the light airs cool velvet under your shirt and never a sound but the chuckling of the water against the sides of the old rust bucketwhat was her name? That was a long time agothe S. S. Mary Brewster.

No more moon if the earth was gone. Starsbut no one to look at them.

He looked back at the dates bracketing Dynkowski's probability yoke. "Thine Alabaster Cities gleam, undimmed by-

He suddenly felt the need for Meade and stood up.