Harry did not really listen. A warmth was spreading through him that had nothing to do with the sunlight; a tight obstruction in his chest seemed to be dissolving. He knew that Ron and Hermione were more shocked than they were letting on, but the mere fact that they were still there on either side of him, speaking bracing words of comfort, not shrinking from him as though he were contaminated or dangerous, was worth more than he could ever tell them.
J.K. Rowling, in ‘Harry Potter and the Half-Blood Prince’.
Hermione returned a quarter of an hour later with the silvery Cloak folded carefully under her robes.
‘Hermione, I don’t know what’s got into you lately!’ said Ron, astounded. ‘First you hit Malfoy, then you walk out on Professor Trelawney –’
Hermione looked rather flattered.
J.K. Rowling, in ‘Harry Potter and the Prisoner of Azkaban’.
But from that moment on, Hermione Granger became their friend. There are somethings you can’t share without ending up liking each other, and knocking out a twelve-foot mountain troll is one of them.
J.K. Rowling, in ‘Harry Potter and the Philosopher’s Stone’