Dumbledore was striding serenely across the room wearing long midnight-blue robes and a perfectly calm expression.
He glanced round at Professor Binns who continued to read his notes, serenely unaware that the class’s attention was even less focused upon him than usual.
Tire away, then, Rita,’ said Hermione serenely, fishing a cherry out from the bottom of her glass.
Dumbledore was sitting behind his desk, his expression serene, the tips of his long fingers together.
’Oh, gosh, I forgot!’ said Hermione, watching the eagle flapping its wings as Luna walked serenely past a group of cackling and pointing Slytherins.
’You’re being rather rude, you know,’ said Luna serenely.
’If you don’t — if you keep me in here — if you don’t let me = ’By all means continue destroying my possessions,’ said Dumbledore serenely.
’Well, I’ve lost most of my possessions,’ said Luna serenely.
His large, pointed ears were now sticking out from beneath what looked like all the hats Hermione had ever knitted; he was wearing one on top of the other, so that his head seemed elongated by two or three feet, and on the very topmost bobble sat Hedwig, hooting serenely and obviously cured.
’Look,’ said Ron, barely containing his anger, ’you might be able to fly without a broomstick but the rest of us can’t sprout wings whenever we —’ There are ways of flying other than with broomsticks,’ said Luna serenely.
The delicate silver instruments stood once more on the spindle-legged tables, puffing and whirring serenely The portraits of the headmasters and headmistresses were snoozing in their frames, heads lolling back in armchairs or against the edge of the picture.
There are no more uses of "serene" in the book.
Show samples from other sources
While I lie awake worrying, she sleeps serenely.
She remained serene even when he was yelling at her.