A charming little bit that doesn't spoiler anything:
"La Belle Nicolette," said Lydia. "Simon arranged an introduction. He said you'd met her--"
"When a gentleman goes to Paris to make an assignation with the likes of La Belle Nicolette--" Asher cast a glance of mock reproach at the vampire --"the least one can expect of another gentleman is that he will not inform his wife of it ..."
And Ysidro returned a fleet, sudden, and completely human grin.