"According to several people on the computer, I'm known; it would be impossible if you were not, in that case." He glanced at her curiously. "You do not know what the book is about?"
When she picked it up and opened it, whatever she had read got her blushing like mad, and he decided he would have to flip through it later and try to guess what she had found.
In the meantime, he could tease her a bit. "So, was I correct in my assumption?"