Artemis- Foaly Claim

“Human scientists have been struggling to make their reflective foil
thin enough to work with, yet strong enough to withstand the
elements.”
“Stupid.”
“Misguided, centaur. Not stupid, surely. Your own files—”
“I considered the foil idea briefly. And how did you see my files?”
This was not a real question. Foaly had long since resigned himself
to the fact that Artemis Fowl was at least as talented a hacker as he
himself was.

- The Atlantis Complex, Chapter 1