[4] Ilton, the ruling race and official language of the Martian Union.

"Yes," he said readily, "I am Commander here." He spoke English with the same freedom and accent of Miko. "Is this George Prince's sister?"

"Yes. Her name is Anita Prince. Tell your men to take their hands off her."

He waved his men away. They all seemed more interested in Anita than in me. He added:

"I am Set Potan." He addressed Anita. "George Prince's sister? You are called Anita? I have heard of you. I knew your brother—indeed, you look very much like him."

He swept his plumed hat to the grid with a swaggering gesture of homage. A courtierlike fellow this, debonair as a Venus cavalier!

He accepted us. I realized that Anita's presence was immensely valuable in making us convincing. Yet there was about this Potan—as with Miko—a disturbing suggestion of irony. I could not make him out. I decided that we had fooled him. Then I remarked the steely glitter of his eyes as he turned to me.

"You were an officer of the Planetara?"