Besides, as a defensive position, the stasis field could be a deathtrap. The enemy has all the options since the dome is opaque; the only way you can find out what they’re up to is to stick your head out. They didn’t have to wade in with primitive weapons unless they were impatient. They could keep the dome saturated with laser fire and wait for you to turn off the generator. Meanwhile harassing you by throwing spears, rocks, arrows into the dome — you could return fire, but it was pretty futile.

Of course, if one man stayed inside the base, the others could wait out the next half-hour in the stasis field. If he didn’t come get them, they’d know the outside was hot. I chinned the combination that would give me a frequency available to everybody echelon 5 and above.

“This is Major Mandella.” That still sounded like a bad joke.

I outlined the situation to them and asked them to tell their troops that everyone in the company was free to move into the stasis field. I would stay behind and come retrieve them if things went well — not out of nobility, of course; I preferred taking the chance of being vaporized in a nanosecond, rather than almost certain slow death under the gray dome.

I chinned Charlie’s frequency. “You can go, too. I’ll take care of things here.”

“No, thanks,” he said slowly. “I’d just as soon … Hey, look at this.”

The cruiser had launched another red dot, a couple of minutes behind the others. The display’s key identified it as being another drone. “That’s curious.”

“Superstitious bastards,” he said without feeling.

It turned out that only eleven people chose to join the fifty who had been ordered into the dome. That shouldn’t have surprised me, but it did.

As the drones approached, Charlie and I stared at the monitors, carefully not looking at the holograph display, tacitly agreeing that it would be better not to know when they were one minute away, thirty seconds … And then, like the other times, it was over before we knew it had started. The screens glared white and there was a yowl of static, and we were still alive.

But this time there were fifteen new holes on the horizon — or closer and the temperature was rising so fast that the last digit in the readout was an amorphous blur.

The number peaked in the high 800s and began to slide back down.

We had never seen any of the drones, not during that tiny fraction of a second it took the lasers to aim and fire. But then the seventeenth one flashed over the horizon, zigzagging crazily, and stopped directly overhead. For an instant it seemed to hover, and then it began to fall. Half the lasers had detected it, and they were firing steadily, but none of them could aim; they were all stuck in their last firing position.

It glittered as it dropped, the mirror polish of its sleek hull reflecting the white glow from the craters and the eerie flickering of the constant, impotent laser fire. I heard Charlie take one deep breath, and the drone fell so close you could see spidery Tauran numerals etched on the hull and a transparent porthole near the tip — then its engine flared and it was suddenly gone.

“What the hell?” Charlie said, quietly.

The porthole. “Maybe reconnaissance.”

“I guess. So we can’t touch them, and they know it.”

“Unless the lasers recover.” Didn’t seem likely. “We better get everybody under the dome. Us, too.”

He said a word whose vowel had changed over the centuries, but whose meaning was clear. “No hurry. Let’s see what they do.”

We waited for several hours. The temperature outside stabilized at 690 degrees — just under the melting point of zinc, I remembered to no purpose — and I tried the manual controls for the lasers, but they were still frozen.

“Here they come,” Charlie said. “Eight again.”

I started for the display. “Guess we’ll—”

“Wait! They aren’t drones.” The key identified all eight with the legend Troop Carrier.

“Guess they want to take the base,” he said. “Intact.”

That, and maybe try out new weapons and techniques. “It’s not much of a risk for them. They can always retreat and drop a nova bomb in our laps.”

I called Brill and had her go get everybody who was in the stasis field, set them up with the remainder of her platoon as a defensive fine circling around the northeast and northwest quadrants. I’d put the rest of the people on the other half-circle.

“I wonder,” Charlie said. “Maybe we shouldn’t put everyone topside at once. Until we know how many Taurans there are.”

That was a point. Keep a reserve, let the enemy underestimate our strength. “It’s an idea … There might be just 64 of them in eight carriers.” Or 128 or 256. I wished our spy satellites had a finer sense of discrimination. But you can only cram so much into a machine the size of a grape.

I decided to let Brill’s seventy people be our first line of defense and ordered them into a ring in the ditches we had made outside the base’s perimeter. Everybody else would stay downstairs until needed.

If it turned out that the Taurans, either through numbers or new technology, could field an unstoppable force, I’d order everyone into the stasis field. There was a tunnel from the living quarters to the dome, so the people underground could go straight there in safety. The ones in the ditches would have to fall back under fire. If any of them were still alive when I gave the order.

I called in Hilleboe and had her and Charlie keep watch over the lasers. If they came unstuck, I’d call Brill and her people back. Turn on the automatic aiming system again, then sit back and watch the show. But even stuck, the lasers could be useful. Charlie marked the monitors to show where the rays would go; he and Hilleboe could fire them manually whenever something moved into a weapon’s line of sight.

We had about twenty minutes. Brill was walking around the perimeter with her men and women, ordering them into the ditches a squad at a time, setting up overlapping fields of fire. I broke in and asked her to set up the heavy weapons so that they could be used to channel the enemy’s advance into the path of the lasers.

There wasn’t much else to do but wait. I asked Charlie to measure the enemy’s progress and try to give us an accurate count-down, then sat at my desk and pulled out a pad, to diagram Brill’s arrangement and see whether I could improve on it.

The cat jumped up on my lap, mewling piteously. He’d evidently been unable to tell one person from the other, suited up. But nobody else ever sat at this desk. I reached up to pet him and he jumped away.

The first line that I drew ripped through four sheets of paper. It had been some time since I’d done any delicate work in a suit. I remembered how in training, they’d made us practice controlling the strength-amplification circuits by passing eggs from person to person, messy business. I wondered if they still had eggs on Earth.

The diagram completed, I couldn’t see any way to add to it. All those reams of theory crammed in my brain; there was plenty of tactical advice about envelopment and encirclement, but from the wrong point of view. If you were the one who was being encircled, you didn’t have many options. Sit tight and fight. Respond quickly to enemy concentrations of force, but stay flexible so the enemy can’t employ a diversionary force to divert strength from some predictable section of your perimeter. Make full use of air and space support, always good advice. Keep your head down and your chin up and pray for the cavalry. Hold your position and don’t contemplate Dienbienphu, the Alamo, the Battle of Hastings.

“Eight more carriers out,” Charlie said “Five minutes. Until the first eight get here.”

So they were going to attack in two waves. At least two. What would I do, in the Tauran commander’s position? That wasn’t too farfetched; the Taurans lacked imagination in tactics and tended to copy human patterns.