Page 1603 - Enders_Game_Full_Book

A deafening gunshot rang through the closed interior, and the psychiatrist fell back. Petra felt hot brains and stinging bits of bone spatter her face and arms. The man across from her started reaching for a weapon under his coat, but he was shot twice and slumped over dead without touching it.
The door from the cab opened the rest of the way. It was Achilles standing there, holding the gun in his hand. He said something.
"I can't hear you," said Petra. "I can't even hear my own voice."
Achilles shrugged. Speaking louder and mouthing the words carefully, he tried again. She refused to look at him.
"I'm not going to try to listen to you," she said, "while I still have his blood all over me."
Achilles set down the gun-far out of her reach-and pulled off his shirt. Bare-chested, he handed it to her, and when she refused to take it, he started wiping her face with it until she snatched it out of his hands and did the job herself.
The ringing in her ears was fading, too. "I'm surprised you didn't wait to kill them until you'd had a chance to tell them how smart you are," said Petra.
"I didn't need to," said Achilles. "You already told them how dumb they were."
"Oh, you were listening?"
"Of course the compartment back here was wired for sound," said Achilles. "And video."
"You didn't have to kill them," said Petra.
"That guy was going for his gun," said Achilles.
"Only after his friend was dead."
"Come now," said Achilles. "I thought Ender's whole method was the preemptive use of ultimate force. I only do what I learned from your hero."
"I'm surprised you did this one yourself," said Petra. "What do you mean, 'this one'?" said Achilles.
"I assumed you were stopping the other rescues, too."
"You forget," said Achilles, "I've already had months to evaluate you. Why keep the others, when I can have the best?"