"Yes, Great Master."

"I know about you. I know that we trust you."

The huge round eyes next fastened upon me. Then to Snap, and back to me. The words were English this time. "Men of Earth, are you decided, like the Martian, to join with us?"

I tried with sudden vehemence to still my thoughts, or to change them so that they lied. Fear surged upon me. Could this vast mechanism of human mind here at my feet interpret the vibrations of my thoughts? Could this Great Master of Wandl see into my mind?

The brain said, "You are uncertain. You do not want to die?"

"No Great Master," we both answered.

"You shall not, unless you attempt to cause us trouble. Your thoughts are black." He addressed Molo. "Have they ever been read?"

"No, Great Master."

"When opportunity comes, have them read." He added to Snap and me: "I plan to take prisoners. My Supreme Rulers, rulers of a neighboring more powerful planet, which sent Wandl upon her mission of conquest, ordered it. When your worlds are vacant of life, those who command me will want some of you left alive to be studied. Your thoughts are very black, Earthman. I think when they are carefully read you will prove no great advantage to us."

There was irony in the voice, and upon the monstrous bulging face came the horrible travesty of a grin.