hear nothing

Molly’s car was being driven by one of the Sidhe who I couldn’t quite tell was male or female, and who could presumably kill me a dozen times while I tried to figure it out.
“You hear nothing,” Molly told the Sidhe, and the being shuddered a little and nodded.
“Literally,” Molly said. “That’s my Winter Law voice. The driver is effectively deaf until I say otherwise.”
And then she rolled up the privacy curtain between the front and the back.
“Your driver reads lips?” I guessed.
“I find it best to assume,” she said. “The Winter Court is just that kind of place.” She folded her arms and crossed her knees, which looked very nice in the sharp, rather conservative dress suit she wore. “I can’t believe she’s just selling you off like a horse to Lara.”

Battle Ground Chapter 36, Page 395-396