“I don’t know for sure, but there is a very good chance it is so,” Brion said, trying to repair his defenses. “Telt made readings, he had other records of radioactivity in this same magter keep—proof that something is there. But Telt is dead now, the records destroyed. Don’t you see—” He broke off, realizing how vague and unprovable his case was. This was defeat.

The radio was silent, with just the hum of the carrier wave as Krafft waited for him to continue. When Brion did speak his voice was empty of all hope.

“Send your ship down,” he said tiredly. “We’re in a building that belonged to the Light Metals Trust, Ltd., a big warehouse of some kind. I don’t know the address here, but I’m sure you have someone there who can find it. We’ll be waiting for you. You win, Krafft.”

He turned off the radio.

XVII

XVII

“Do you mean what you said, about giving up?” Lea asked. Brion realized that she had stopped talking to Ulv some time ago, and had been listening to his conversation with Krafft. He shrugged, trying to put his feeling into words.

“We’ve tried—and almost succeeded. But if they won’t listen, what can we do? What can one man possibly do against a fleet loaded with H-bombs?”

As if in answer to the question, Ulv’s voice drowned him out, the harsh Disan words slashing the silence of the room.

“Kill you, the enemy!” he said. “Kill you umedvirk!”

He shouted the last word and his hand flashed to his belt. In a single swift motion he lifted his blowgun and placed it to his lips. A tiny dart quivered in the already dead flesh of the creature in the magter’s skull. The action had all the symbolism of a broken lance, the declaration of war.

“Ulv understands it a lot better than you might think,” Lea said. “He knows things about symbiosis and mutualism that would get him a job as a lecturer in any university on Earth. He knows just what the brain-symbiote is and what it does. They even have a word for it, one that never appeared in our Disan language lessons. A life form that you can live with or cooperate with is called medvirk. One that works to destroy you is umedvirk. He also understands that life forms can change, and be medvirk or umedvirk at different times. He has just decided that the brain symbiote is umedvirk and he is out to kill it. So will the rest of the Disans as soon as he can show them the evidence and explain.”

“You’re sure of this?” Brion asked, interested in spite of himself.