“Matthew sighed as he set the bottle on the mantel. “You know what they say,” he said, as he and James left the room and began to wend their way back toward the party. “Drink, and you will sleep; sleep, and you will not sin; do not sin, and you will be saved; therefore, drink and be saved.”
“Matthew, you could sin in your sleep,” said a languorous voice.
“Anna,” said Matthew, sagging against James’s shoulder. “Have you been sent to fetch us?”
Lounging against the wall was James’s cousin Anna Lightwood, gorgeously dressed in fitted trousers and a pin-striped shirt. She had the Herondale blue eyes, always disconcerting for James to see, as it felt a bit as if his father were looking at him. “If by ‘fetch,’ you mean ‘drag you back to the ballroom by any means possible,’  ” Anna said. “There are girls who need someone to dance with them and tell them they look pretty, and I cannot do it all on my own.”
The musicians in the ballroom suddenly struck up a tune—a lively waltz.
“Crikey, not waltzing,” said Matthew, in despair. “I loathe waltzing.”
He began to back away. Anna seized him by the back of the coat. “Oh, no, you don’t,” she said, and firmly herded both of them toward the ballroom.”