The unloading had been completed. The members of the colony were toiling up the slope, lugging the cartons to the check area beneath the ship. Mrs. Berthelson strode over to Flannery, accompanied by Professor Crowley.

“Here’s the inventory,” she said briskly. “A few items couldn’t be found. You know, I don’t stock all that in my store. I have to send out for most of it.”

“We know,” Flannery said, coldly amused. It would be interesting to see a country store that stocked binocular microscopes, turret lathes, frozen packs of antibiotics, high-frequency radio transmitters, advanced textbooks in all fields.

“So that’s why I have to charge you a little dearer,” the old woman continued, the inflexible routine of squeeze. “On items I bring in—” She examined her inventory, then returned the ten-page typewritten list that Crowley had given her on the previous visit. “Some of these weren’t available. I marked them back order. That bunch of metals from those laboratories back East—they said maybe later.” A cunning look slid over the ancient gray eyes. “And they’ll be very expensive.”

“It doesn’t matter,” Flannery said, handing her the money. “You can cancel all the back orders.”

At first her face showed nothing. Only a vague inability to understand.

“No more shipments,” Crowley explained. A certain tension faded from them; for the first time, they weren’t afraid of her. The old relationship had ended. They weren’t dependent on the rusty red truck. They had their shipment; they were ready to leave.

“We’re taking off,” Flannery said, grinning starkly. “We’re full up. “

Comprehension came. “But I placed orders for those things.” Her voice was thin, bleak. Without emotion, “They’ll be shipped to me. I’ll have to pay for them.”

“Well,” Flannery said softly, “isn’t that too damn bad.”

Crowley shot him a warning glance. “Sorry,” he said to the old woman. “We can’t stick around—this place is getting hot. We’ve got to take off.”

On the withered face, dismay turned to growing wrath. “You ordered those things! You have to take them!” Her shrill voice rose to a screech of fury. “What am I supposed to do with them?”

As Flannery framed his bitter answer, Pat Shelby intervened. “Mrs. Berthelson,” she said quietly, “you’ve done a lot for us, even if you wouldn’t help us through the hole in your time. And we’re very grateful. If it wasn’t for you, we couldn’t have got together enough supplies. But we really have to go.” She reached out her hand to touch the frail shoulder, but the old woman jerked furiously away. “I mean,” Pat finished awkwardly, “we can’t stay any longer, whether we want to or not. Do you see all that black ash? It’s radioactive, and more of it sifts down all the time. The toxic level is rising—if we stay any longer it’ll start destroying us.”

Mrs. Edna Berthelson stood clutching her inventory list. There was an expression on her face that none of the group had ever seen before. The violent spasm of wrath had vanished; now a cold, chill glaze lay over the aged features. Her eyes were like gray rocks, utterly without feeling.

Flannery wasn’t impressed. “Here’s your loot,” he said, thrusting out the handful of bills. “What the hell.” He turned to Crowley. “Let’s toss in the rest. Let’s stuff it down her goddamn throat.”

“Shut up,” Crowley snapped.

Flannery sank resentfully back. “Who are you talking to?”

“Enough’s enough.” Crowley, worried and tense, tried to speak to the old woman. “My God, you can’t expect us to stay around here forever, can you?”

There was no response. Abruptly, the old woman turned and strode silently back to her truck.

Masterson and Crowley looked uneasily at each other. “She sure is mad,” Masterson said apprehensively.

Tellman hurried up, glanced at the old woman getting into her truck, and then bent down to root around in one of the cartons of groceries. Childish greed flushed across his thin face. “Look,” he gasped. “Coffee—fifteen pounds of it. Can we open some? Can we get one tin open, to celebrate?”

“Sure,” Crowley said tonelessly, his eyes on the truck. With a muffled roar, the truck turned in a wide arc and rumbled off down the crude platform, toward the ash. It rolled off into the ash, slithered for a short distance, and then faded out. Only the bleak, sun-swept plain of darkness remained.

“Coffee!” Tellman shouted gleefully. He tossed the bright metal can high in the air and clumsily caught it again. “A celebration! Our last night—last meal on Earth!”

It was true.

As the red pickup truck jogged metallically along the road, Mrs Berthelson scanned “ahead” and saw that the men were telling the truth. Her thin lips writhed; in her mouth an acid taste of bile rose. She had taken it for granted that they would continue to buy—there was no competition, no other source of supply. But they were leaving. And when they left, there would be no more market.

She would never find a market that satisfactory. It was a perfect market; the group was a perfect customer. In the locked box at the back of the store, hidden down under the reserve sacks of grain, was almost two hundred and fifty thousand dollars. A fortune, taken in over the months, received from the imprisoned colony as it toiled to construct its ship.

And she had made it possible. She was responsible for letting them get away after all. Because of her shortsightedness, they were able to escape. She hadn’t used her head.

As she drove back to town she meditated calmly, rationally. It was totally because of her: she was the only one who had possessed the power to bring them their supplies. Without her, they were helpless.

Hopefully, she cast about, looking this way and that, peering with her deep inner sense, into the various “aheads.” There was more than one, of course. The “aheads” lay like a pattern of squares, an intricate web of worlds into which she could step, if she cared. But all were empty of what she wanted.

All showed bleak plains of black ash, devoid of human habitation. What she wanted was lacking: they were each without customers.

The patterns of “aheads” was complex. Sequences were connected like beads on a string; there were chains of “aheads” which formed interwoven links. One step led to the next … but not to alternate chains.

Carefully, with great precision, she began the job of searching through each of the chains. There were many of them … a virtual infinity of possible “aheads.” And it was her power to select; she had stepped into that one, the particular chain in which the huddled colony had labored to construct its ship. She had, by entering it, made it manifest. Frozen it into reality. Dredged it up from among the many, from among the multitude of possibilities.

Now she needed to dredge another. That particular “ahead” had proven unsatisfactory. The market had petered out.

The truck was entering the pleasant town of Walnut Creek, passing bright stores and houses and supermarkets, before she located it. There were so many, and her mind was old … but now she had picked it out. And as soon as she found it, she knew it was the one. Her innate business instinct certified it; the particular “ahead” clicked.

Of the possibilities, this one was unique. The ship was well-built, and thoroughly tested. In “ahead” after “ahead” the ship rose, hesitated as automatic machinery locked, and then burst from the jacket of atmosphere, toward the morning star. In a few “aheads,” the wasted sequences of failure, the ship exploded into white-hot fragments. Those, she ignored; she saw no advantage in that.

In a few “aheads” the ship failed to take off at all. The turbines lashed; exhaust poured out … and the ship remained as it was. But then the men scampered out, and began going over the turbines, searching for the faulty parts. So nothing was gained. In later segments along the chain, in subsequent links, the damage was repaired, and the takeoff was satisfactorily completed.