What have I learned so far? Ender listed things in his mind as he undressed by his bunk. The enemy's gate is down. Use my legs as a shield in battle. A small reserve, held back until the end of the game, can be decisive. And soldiers can sometimes make decisions that are smarter than the orders they've been given.

Naked, he was about to climb into bed when Bonzo came toward him, his face hard and set. I have seen Peter like this, thought Ender, silent with murder in his eye. But Bonzo is not Peter. Bonzo has more fear.

"Wiggin, I finally traded you. I was able to persuade Rat Army that your incredible place on the efficiency list is more than an accident. You go over there tomorrow."

"Thank you, sir," Ender said.

Perhaps he sounded too grateful. Suddenly Bonzo swung at him, caught his jaw with a vicious open-handed slap. It knocked Ender sideways, into his bunk, and he almost fell. Then Bonzo slugged him, hard, in the stomach. Ender dropped to his knees.

"You disobeyed me," Bonzo said. Loudly, for all to hear. "No good soldier ever disobeys."

Even as he cried from the pain, Ender could not help but take vengeful pleasure in the murmurs he heard rising through the barracks. You fool, Bonzo. You aren't enforcing discipline, you're destroying it. They know I turned defeat into a draw. And now they see how you repay me. You made yourself look stupid in front of everyone. What is your discipline worth now?

The next day, Ender told Petra that for her sake the shooting practice in the morning would have to end. Bonzo didn't need anything that looked like a challenge now, and so she'd better stay clear of Ender for a while. She understood perfectly. "Besides," she said, "you're as close to being a good shot as you'll ever be."

He left his desk and flash suit in the locker. He would wear his Salamander uniform until he could get to the commissary and change it for the brown and black of Rat. He had brought no possessions with him; he would take none away. There were none to have-- everything of value was in the school computer or his own head and hands.

He used one of the public desks in the game room to register for an earth-gravity personal combat course during the hour immediately after breakfast. He didn't plan to get vengeance on Bonzo for hitting him. But he did intend that no one would he able to do that to him again.