Matson tried to force his mind to utter blankness, and the alien smiled at him. "It does some good—but not much," he said. "Conscious control is never perfect."

"Well then, what can I do?"

"Go away. Your range fortunately is short."

Matson looked at the alien. "Not yet," he said coldly. "I'm still looking for something."

"Our technology," Ixtl nodded. "I know. However I can assure you it will be of no help to you. You simply do not have the necessary background. Our science is based upon a completely different philosophy from yours."

To Matson the terms were contradictory.

"Not as much as you think," Ixtl continued imperturbably. "As you will find out, I was speaking quite precisely." He paused and eyed Matson thoughtfully. "It seems as though the only way to remove your disturbing presence is to show you that our technology is of no help to you. I will make a bargain with you. We shall show you our machines, and in return you will stop harassing us. We will do all in our power to make you understand; but whether you do or do not, you will promise to leave and allow us to continue our studies in peace. Is that agreeable?"

Matson swallowed the lump in his throat. Here it was—handed to him on a silver platter—and suddenly he wasn't sure that he wanted it!

"It is," he said. After all, it was all he could expect.

They met that night at the spaceship. The aliens, tall, calm and cool; Matson stocky, heavy-set and sweating. The contrast was infernally sharp, Matson thought. It was as if a primitive savage were meeting a group of nuclear physicists at Los Alamos. For some unknown reason he felt ashamed that he had forced these people to his wishes. But the aliens were pleasant about it. They took the imposition in their usual friendly way.