Suddenly he realized that he could still scent her. He became sharply aware of that alien, flower-like odor.
He heard her giggle, whirled around. She was standing not six feet off, regarding him with an amused expression.
"How did you do it?" Joel blurted out.
"It is difficult to explain. You have no words in your language to signify what I just did. I—I removed myself from your range of vision."
"Hell! I know that. But how?"
She tapped her forehead again. "It's done with an understanding of the nervous system."
Joel stared at her without any sign of comprehension.