"Who are you?" he demanded bluntly. "What are you?"
Timmy laughed lightly, patently at ease.
"I am nothing, Phil. Nothing at all."
"Rot. You are flesh and blood, human, and were born to Helen and Jerry. What else?"
"Is there more?"
"Stop playing!" Phil jumped up angrily, standing tall over the seated figure. "I've watched you for years. You've given yourself away repeatedly."
"Ah, that 'advanced scientific knowledge' worried you badly, didn't it?"
"I ... see. You revealed it deliberately. There are other things. Your aversion to crowds—"
"Their thinking confused me. They were dangerous."