dodges nail

"What's that?" she all but whispered.
"Litmus test," I said.
Then I flicked the nail gently with one finger, and sent it rolling across the surface of my desk and toward her perfectly manicured hands.
She didn't move until a split second before the nail touched her - but then she did, a blur of motion that took her two long strides back from my desk and knocked over the chair she'd been sitting on. The nail rolled off the edge of the desk and fell to the floor with a clink.
"Iron," I said. "Cold iron. Faeries don't like it."
The expression drained from her face. One moment, there had been arrogant conceit, haughty superiority, blithe confidence. But that simply vanished, leaving her features cold and lovely and remote and empty of all emotion, of anything recognizably human.


Summer Knight Chapter 2, Page 29-30