"Do you know what these machines are for?"
"Haven't the least idea; Stevens said they were for digging something. They had the helmets on him twice."
"What helmets?"
"Like the dopey at the door wears. The dopeys all have to wear them."
"Why?"
"Haven't got any brains, I guess. I had one on once when they were teaching me to do this. They tell you what to think."
"What do you mean?"
"You put the helmet on and it's like you're hypnotized. You can't think anything but what they want you to think."
Sherman shuddered slightly. So that was how the mechanical ape-men were controlled so perfectly!
"How did they get you?" asked the girl who had described herself as Marta Lami.