Through the tendays of oppressive weight, the children drilled endlessly. Martin actually looked forward to time in the craft, to the relief of volumetric fields. Hakim pushed the search team patiently, trying to absorb as much information as possible about Wormwood before they pulled in the remotes.

Hakim could shed little light on the unresolved problem of the five dark masses close in to the star, orbiting in nearly perfect circles.

Martin pondered all this alone, preparing the preliminary order of battle in his quarters. He had not seen Theresa for eighteen hours; had not slept for thirty. Love-making was out of the question.

The children engaged in routine drills without him. He had to finish his work soon—in a few hours at most—to give time for final practice and one final external drill before they entered the pre-birth cloud.

They had flown for five and a half years, and yet there was the inevitable urgency and panic now, something that proved their humanity. He half-suspected the external drill had been deliberately arranged to be disastrous, that the moms in their subtle way were shocking the children, guiding them into battle-readiness…

But he could not assume that. The moms might be as coolly unconcerned as they seemed in conversation, relying entirely on the passion of the children to carry out the Law. Do the Job.

He rubbed his sweat-matted hair. Sometimes he could hardly think; he would curl up on the floor, eyes tight shut, trying to ignore exhaustion, frustrated desire for Theresa, and concentrate.

Despite these distractions, he was coming to a conclusion about the plan of battle.

Pan was in charge of general planning. No votes would be taken after the judgment had been made by all the children; Pan and Christopher Robin would have complete control, acting through the division leaders, the five former Pans. Each division leader would oversee a team of fifteen or sixteen children; each team would be assigned a task. Two teams would stay with the Hare. Three teams would fly Tortoise.

Tortoisewould accomplish the main objective. Makers cast into the pre-birth cloud would use the available raw materials to manufacture weapons, gravity- or proximity-fuse neutronium bombs that would comprise a second automatic assault, in case the initial assault failed.

Tortoisewould launch small craft. Their task would be to divert and/or destroy any defenses and accomplish reconnaissance. Two ex-Pans would lead these small craft teams.

Martin suffered a deep conflict when studying strategy and tactics. Too many possibilities occurred to him; he could not see his way through to a clear line of attack. With some chagrin, he knew the reason for his conflict: he regarded the massive destruction of space war, the necessary total vanquishing of an enemy, as an essentially immoral act. Yet he desired justice for the Earth's murder as much as any of the children.

Clear thinking on the matter was very difficult; he simply did not trust his own instincts.

Many children had created and filed theoretical tactics over the years; Martin had consulted nearly all of them, particularly those created by Theodore Dawn.

Theodore had been a kind of brilliant child, wise in some respects, but supremely strong willed and irresponsible in others, a complement to Martin's indecision and second-guessing. More effectively than Martin ever could, blithely ignoring questions of morality, Theodore had created a mathematics of space war tactics that used nearly all the features of the momerath to great advantage. His schemes covered many contingencies, all suggested by the principles taught by the moms. Basics of space warfare, as taught by the moms, had flowered in Theodore's mind into a graceful dance devoid of consequences.

In Theodore's plans, concealment was the only armor. Concealment, what Theodore called "silence," was a fine art among high-technology civilizations. Silence meant complete damping of radiation; invisibility meant unaberrated replication of incident radiation. Advantages over an adversary could be measured mathematically by how silent each was. Silent delivery of weapons—and the silence of the weapons themselves—was next in importance.

Theodore had studied manuals of submarine warfare on Earth. But space was far more dangerous than a deep sea, because it was vast, transparent to all radiations, and a perfect medium for weapons delivery. Yet space had many advantages over ocean; it was three-dimensional without limit, travel paths were limited to orbits, and even the largest unconcealed weapons platform, given sufficient distance, was tiny compared to the background.

Interstellar space had no weather, and rarely changed its character during a period of confrontation. Interplanetary space—the region most likely to be assaulted and defended—was subject to the vagaries of stellar atmospheres and stellar particle streams, but advanced spacefaring civilizations were not bothered by them.

Interplanetary space was extremely difficult to guard. When assault could come undetected from almost any angle, the best defense lay in deceit—either camouflage or outright disguise. What did not attract attention was not attacked.

The libraries told them that only primitive civilizations, such as Earth's, blatantly announced their existence.

If deceit and camouflage failed, space warfare was comparatively clean and dependent on initial conditions. Knowing the differences in technology suggested probable outcomes for most confrontations even before battle began.

For an invader, this could be turned into an advantage. If an invasion force was discovered within a system, it could "pigeon puff: provide misleading evidence of overwhelming superiority, thus forcing its adversary into ineffective and energy-wasting tactics accompanied by a sense of certain defeat. Psychological weapons were difficult to design because the psychology of an adversary might be unknown or, when facing machines, virtually nonexistent. Even the methods of perception of an adversary might be problematic.

More effective sometimes, Theodore postulated, was an appearance of weakness, of lesser technological ability. One part of an assault could perform deception while other parts deployed silently. If the adversary were deceived by this "lapwing," it might exert its forces prematurely, inappropriately, or not at all.

These were solid but not brilliant reflections of what the moms , had taught them. Where Theodore Dawn's genius truly shined was in describing an adversary's course of actions under the imagined circumstances of confrontation. Theodore seemed to have an aptitude for creating alien psychologies, and applying them to space warfare.

He created four categories of adversary: inferior, equal, superior, and unknowable. Unknowable could encompass any of the other categories; for example, a weak, low-technology adversary might have stumbled onto effective methods of maintaining silence, or of deceiving.

Inferior was easily enough defined, and even dealt with, given due caution; but it was unlikely the Killers were inferior to the Benefactors. Theodore outlined a few simple instances, warned of dangers, and went on to equality and superiority.

Equality was most difficult to plan for, simply because it couldbe planned for. Martin, choosing the most likely scenario, studied Theodore's writing and displays on the tactics of attacking equals. What he was concerned with was not equality of force, but equality of technology and intelligence; not equality of desire or fear, nor even the sameness of creativity, but equality of the raw materials of warfare, in terms of capabilities. Thus, a torpedo was smaller and perhaps less complex than the submarine it was designed to destroy, yet it was equal in technological origins.