Ender nodded. So he was to be a nothing. He hoped the trade happened soon.

He also noticed that Petra did not so much as cry out in pain, or touch her cheek, though one spot of blood had beaded and run, making a streak down to her jaw. Outcast she may be, but since Bonzo Madrid was not going to be Ender's friend, no matter what, he might as well make friends with Petra.

He was assigned a bunk at the far end of the room. The upper bunk, so that when he lay on his bed he couldn't even seen the door; the curve of the ceiling blocked it. There were other boys near him, tired-looking boys, sullen, the ones least valued. They had nothing of welcome to say to Ender.

Ender tried to palm his locker open, but nothing happened. Then he realized the lockers were not secured. All four of them had rings on them, to pull them open. Nothing would be private, then, now that he was in an army.

There was a uniform in the locker. Not the pale green of the Launchies, but the orange-trimmed dark green uniform of Salamander Army. It did not fit well. But then, they had probably never had to provide such a uniform for a boy so young.

He was starting to take it off when he noticed Petra walking down the aisle toward his bed. He slid off the bunk and stood on the floor to greet her.

"Relax," she said. "I'm not an officer."

"You're a toon leader, aren't you?"

Someone nearby snickered.

"Whatever gave you that idea, Wiggin?"

"You have a bunk in the front."

"I bunk in the front because I'm the best sharpshooter in Salamander Army, and because Bonzo is afraid I'll start a revolution if the toon leaders don't keep an eye on me. As if I could start anything with boys like these ." She indicated the sullen-faced boys on the nearby bunks.

What was she trying to do, make it worse than it already was?

"Everybody's better than I am," Ender said, trying to dissociate himself from her contempt for the boys who would, after all, be his near bunkmates.

"I'm a girl," she said, "and you're a pissant of a six-year-old. We have so much in common, why don't we be friends?"

"I won't do your deskwork for you," he said.

In a moment she realized it was a joke. "Ha," she said. "It's all so military, when you're in the game. School isn't like it is for Launchies. Histories and strategy and tactics and buggers and math and stars, things you'll need as a pilot or a commander. You'll see."

"So you're my friend. Do I get a prize?" Ender asked. He was imitating her swaggering way of speaking, as if she cared about nothing.

"Bonzo isn't going to let you practice. He's going to make you take your desk to the battleroom and study. He's right, in a way-- he doesn't want a totally untrained little kid start screwing up his precision maneuvers." She lapsed into giria, the slangy talk that imitated the pidgin English of uneducated people. "Bonzo, he pre-cise . He so careful , he piss on a plate and never splash."

Ender grinned.

"The battleroom is open all the time. If you want, I'll take you in the off hours and show you some of the things I know, I'm not a great soldier, but I'm pretty good, and I sure know more than you."

"If you want," Ender said.

"Starting tomorrow morning after breakfast."

"What if somebody's using the room? We always went right after breakfast, in my launch."

"No problem. There are really nine battlerooms."

"I never heard of any others."

"They all have the same entrance. The whole center of the battle school, the hub of the wheel, is battlerooms. They don't rotate with the rest of the station. That's how they do the nullg, the no-gravity-- it just holds still. No spin, no down. But they can set it up so that any one of the rooms is at the battleroom entrance corridor that we all use. Once you're inside, they move it along and another battleroom's in position."

"Oh."

"Like I said. Right after breakfast."

"Right," Ender said.

She started to walk away.

"Petra," he said.

She turned back.

"Thanks."

She said nothing, just turned around again and walked down the aisle.

Ender climbed back up on his bunk and finished taking off his uniform. He lay naked on the bed, doodling with his new desk, trying to decide if they had done anything to his access codes. Sure enough, they had wiped out his security system. He couldn't own anything here, not even his desk.

The lights dimmed a little. Getting toward bedtime. Ender didn't know which bathroom to use.

"Go left out of the door," said the boy on the next bunk. "We share it with Rat, Condor, and Squirrel."

Ender thanked him and started to walk on past.

"Hey," said the boy. "You can't go like that. Uniforms at all times out of this room."

"Even going to the toilet?"

"Especially. And you're forbidden to speak to anyone from any other army. At meals or in the toilet. You can get away with it sometimes in the game room, and of course whenever a teacher tells you to, but if Bonzo catch you, you dead, eh?"

"Thanks."

"And, uh, Bonzo get mad if you skin by Petra."

"She was naked when I came in, wasn't she?"

"She do what she like, but you keep you clothes on. Bonzo's orders."

That was stupid. Petra still looked like a boy, it was a stupid rule. It set her apart, made her different, split the army. Stupid stupid. How did Bonzo get to be a commander, if he didn't know better than that? Alai would be a better commander than Bonzo. He knew how to bring a group together.

I know how to bring a group together, too, thought Ender. Maybe I'll be commander someday.

In the bathroom, he was washing his hands when somebody spoke to him. "Hey, they putting babies in Salamander uniforms now?"

Ender didn't answer just dried off his hands.

"Hey, look! Salamander's getting babies now! Look at this! He could walk between my legs without touching my balls!"

"Cause you got none, Dink, that's why," somebody answered.

As Ender left the room, he heard somebody else say, "It's Wiggin. You know, the smartass from the game room."

He walked down the corridor smiling. He may be short, but they knew his name. From the game room, of course, so it meant nothing. But they'd see. He'd be a good soldier, too. They'd all know his name soon enough. Not in Salamander Army, maybe, but soon enough.

Petra was waiting in the corridor that led to the battleroom. "Wait a minute," she said to Ender. "Rabbit Army just went in, and it takes a few minutes to change to the next battleroom."

Ender sat down beside her. "There's more to the battleroom than just switching from one to the next," he said. "For instance, why is there gravity in the corridor outside the room, just before we go in?"

Petra closed her eyes. "And if the battlerooms are really free-floating, what happens when one is connected? Why doesn't it start to move with the rotation of the school?"

Ender nodded.

"These are the mysteries," Petra said in a deep whisper. "Do not pry into them. Terrible things happened to the last soldier who tried. He was discovered hanging by his feet from the ceiling of the bathroom, with his head stuffed in the toilet."

"So I'm not the first person to ask the question."

"You remember this, little boy." When she said little boy it sounded friendly, not contemptuous. "They never tell you any more truth than they have to. But any kid with brains knows that there've been some changes in science since the days of old Mazer Rackham and the Victorious Fleet. Obviously we can now control gravity. Turn it on and off, change the direction, maybe reflect it-- I've thought of lots of neat things you could do with gravity weapons and gravity drives on starships. And think how starships could move near planets. Maybe tear big chunks out of them by reflecting the planet's own gravity back on itself, only from another direction, and focused down to a smaller point. But they say nothing."

Ender understood more than she said. Manipulation of gravity was one thing; deception by the officers was another; but the most important message was this: the adults are the enemy, not the other armies. They do not tell us the truth.

"Come, little boy," she said. "The battleroom is ready. Petra's hands are steady. The enemy is deadly." She giggled. "Petra the poet, they call me."

"They also say you're crazy as a loon."

"Better believe it, baby butt." She had ten target balls in a bag. Ender held onto her suit with one hand and the wall with the other, to steady her as she threw them, hard, in different directions. In the null gravity, they bounced every which way. "Let go of me," she said. She shoved off, spinning deliberately; with a few deft hand moves she steadied herself, and began aiming carefully at ball after ball. When she shot one, its glow changed from white to red. Ender knew that the color change lasted less than two minutes. Only one ball had changed back to white when she got the last one.

She rebounded accurately from a wall and came at high speed back to Ender. He caught her and held her against her own rebound, one of the first techniques they had taught him as a Launchy.

"You're good," he said.

"None better. And you're going to learn how to do it."

Petra taught him to hold his arm straight, to aim with the whole arm. "Something most soldiers don't realize is that the farther away your target is, the longer you have to hold the beam within about a two-centimeter circle. It's the difference between a tenth of a second and a half a second, but in battle that's a long time. A lot of soldiers think they missed when they were right on target, but they moved away too fast. So you can't use your gun like a sword, swish swish slice-em-in-half. You got to aim."

She used the ballcaller to bring the targets back, then launched them slowly, one by one. Ender fired at them. He missed every one.

"Good," she said. "You don't have any bad habits."

"I don't have any good ones, either," he pointed out.

"I give you those."

They didn't accomplish much that first morning. Mostly talk. How to think while you were aiming. You've got to hold your own motion and your enemy's motion in your mind at the same time. You've got to hold your arm straight out and aim with your body, so in case your arm is frozen you can still shoot. Learn where your trigger actually fires and ride the edge, so you don't have to pull so far each time you fire. Relax your body, don't tense up; it makes you tremble.