"It's Zoe," Jon said, sounding astonished.
"What about her?"
"She's a robot."
"That's impossible. Your sister isn't a robot, Jon. Sure, she's a little weird. But she's still human."
"Not according to the stone."
"Well, the stone must be broken or something, because Zoe is most definitely not a robot. She doesn't even look like a robot."
Meanwhile, in her bedroom, Zoe turned up her heavy metal music. She did this every time she had to recharge. She didn't want anyone to know the truth of her existence. If anyone heard her, she'd have some explaining to do.
She sat on the bed and began to recite in a fairly loud monotone voice, just as always. "Recuperation at ten percent ... recuperation at fifteen percent ... recuperation at twenty percent ..."