"What?" said Dale.

"His face grew brighter — all your faces do that when you lie; I noted the correlation within days of arriving on Earth."

"You mean you saw him blush?" asked Dale.

"No — blush is to change color, is it not? No, I said brighten."

"Oh, Christ," said Frank. "We suspected you guys could see into the infrared, but…"

"What?" said Dale.

Frank looked at the lawyer. "He sees infrared — he sees heat. Even if a person isn’t visibly blushing, capillaries do dilate in the cheeks, causing the cheeks to warm. Hask here is a walking lie detector."

"As you say," said Hask. "I had no doubt of Clete’s intentions. The moment I left, he was going to rush off to the lecture hall to tell you, Dr. Nobilio. I could not allow that — I could not risk that you, or someone you would tell, would reveal the information to Kelkad and the others. Remember, the other Tosoks all knew when you were lying, too." He paused. "I— I just wanted to restrain Clete long enough to bring him proof of what the other Tosoks were going to do, in hopes that he would make a sincere promise of silence… so I encircled his leg with the monofilament. I told him that if he struggled at all it would cut through him, but… but he did struggle." Hask paused, and his tuft waved in sadness. "I am so sorry. I meant only to detain him. But he kept bleeding and bleeding. I have never seen so much blood in my life."

"So, with him dead, you decided to dissect the body," said Frank.

"Yes. Do you not see? I was looking for proof of perfection in its design. I wanted so much to find proof of that — it would have saved your race. But instead I found design flaw after design flaw. I could not dispose of the corpse, but I did manage to steal at least some of the most egregiously obvious evidence of evolution rather than inspired design. The bad design of the throat was obvious at a glance, especially since I had already seen you choke on some water, Frank. The eye was harder — but my pocket computer allowed me to do a decent scan of its structure. And as I traced your digestive system — messy thing that it is — I found that closed tube that seemed to do nothing at all. By wrapping them up and tossing them in the trash, I had hoped to delay the others discovering that your race is not divine."

"But why didn’t you just come forward and tell the world the truth?" asked Dale. "For God’s sake, you were interviewed by Barbara Walters. You could have simply said, while the cameras were rolling, that your people have come to destroy us. Then we would have apprehended all the other Tosoks.

End of problem."

"Counselor," said Hask, "surely you do not think all of us would have come down to Earth’s surface without some way to control and operate our mothership remotely? Yes, our main engine is damaged, but the fusion reactor still functions, and the particle-beam weapon is in working order.

Kelkad has surgically implanted in his person a device that can activate the weapon from the ground. True, using it while he is still on the surface would kill him and the rest of the Tosoks, but he would view that as proper fulfillment of his destiny, and it would accomplish the primary mission: sterilizing the surface of your planet. If any attempt is made to arrest him, I have no doubt that Kelkad will trigger the weapon."

"Well, then," said Dale, "our military could simply shoot Kelkad dead."

"The same device monitors his vital signs. If he dies, the weapon will be fired automatically."

"Christ," said Frank.

"Exactly."

"So, what do we do now?"

"I am not sure," said Hask. "But there is much more to this court case than simply my fate. The fate of your world hangs in the balance."

"What if the particle-beam device were disabled?" asked Frank.

"Neither Seltar nor I have the expertise to do that; it had automatically locked onto your world from the moment we entered your solar system, and we were terrified that if we meddled with its workings, we would accidentally activate it."

"You may not have the expertise," said Frank, "but my government’s military has many people in its employ who specialize in high-tech weaponry — and most of them haven’t had much to do these last few years.

Detective Lieutenant Jesus Perez came out of the elevator into the sixth-floor lounge at Valcour Hall, accompanied by five uniformed LAPD officers. Six Tosoks — Kelkad, Rendo, Torbat, Dodnaskak, Stant, and Ged — were seated in the lounge, watching a taped movie on the TV there.

"Which one of you is Kelkad?" said Perez.

The alien captain touched a control on his translator. "I am Kelkad."

"Kelkad," said Perez, "you are under arrest."

Kelkad’s tuft flattened in disgust as he rose to his feet. "So this is human justice! Your case against Hask is failing, so now you are going to put me on trial?"

"You have the right to remain silent," said Perez, reading from a card. "If you give up the right to remain silent, anything you say can and will be used against you in a court of law. If you desire an attorney and cannot afford one, one will be appointed for you without charge. Do you understand these rights as I’ve explained them to you?"

"This is an outrage!" said Kelkad.

"Do you understand these rights?"

"Yes, but—"

"Fine. Which of you is Rendo?"

"I am she."

"Rendo, you are under arrest. You have the right to—"

"What are you going to do?" asked Kelkad. "Arrest all of us?"

"That is correct," said Perez.

"But that is insane," said Kelkad. "I have learned about your laws. You cannot arrest multiple suspects simultaneously for a crime that clearly only has one perpetrator. None of us were involved in the murder of Dr. Calhoun."

"Who said anything about Dr. Calhoun?" said Perez. "You are being charged with conspiracy to commit murder."

"Whose murder?" demanded Kelkad.

"Everyone’s murder," said Perez.

"This is preposterous! We are your guests. We have done nothing wrong."

"Once your fusion engine is repaired, you plan to turn a particle-beam weapon onto the Earth."

Kelkad was silent for a moment. "Where did you get a wild idea like that?"

"You will have a chance to face your accuser during your trial."

"But who could—" Kelkad clapped his front and back hands together at his right side. "Hask! Hask has told you this. What kind of system of justice is this? Hask is an accused murderer — he would say anything to deflect attention from himself."

"Until now, you were insisting publicly that Hask is innocent."

"Innocent? No, he is clearly a killer. Clearly insane. You heard the testimony — he is unbalanced by the standards of your people. I tell you now that he is unbalanced by the standards of mine as well."

"Hask is the only decent Tosok I’ve met." Perez paused. "Well, one of the two decent ones, anyway."

Kelkad rotated his torso so that his eyes fell on each of his companions in turn. "So one of you is in league with Hask?" he said.

"Oh, it’s not one of them, Kelkad," said Perez. "Michaelson, do you have that tape?"

"Right here, sir."

"Play it."

Michaelson moved toward the VCR, ejected the tape the Tosoks had been watching — Star Trek II: The Wrath of Khan — and inserted the one he’d brought with him.

"This was recorded about an hour ago," Michaelson said, hitting play button.

It took a second for the picture to stabilize. When it did, it showed a view inside the Tosok mothership, obviously taken by a camera mounted on a Tosok’s torso; periodically a hand or part of a U-shaped foot was visible in the field of view. The Tosok was floating down a ship’s corridor large yellow lighting disks — simulating the sunlight from Alpha Centauri A — alternating with smaller orange ones, simulating Centauri B’s rays.