Now Doon seemed to care for his new friends more than he did for her. Every time she thought about him she felt a thud of pain, like a bruised place inside her.
Jeanne DuPrauUnintended consequences, he thought miserably. He was angry at his anger, the way it surged up and took over.
Jeanne DuPrauPoppy was now almost well. She still slept more than usual, but when she wasn't sleeping she tromped around the doctor's house pulling spoons off the table and spilling cups of water and crumpling pages of books. That is, she was almost her old self.
Jeanne DuPrauShe realized all at once that Doon, thin, dark eyed Doon, with his troublesome temper and his terrible brown jacket, and his good heart---- was the person she knew better than anyone now. He was her best friend. --City of Ember--
Jeanne DuPrau