What happened down in the dungeons between you and Professor Quirrell is a complete secret, so, naturally the whole school knows.
J. K. RowlingWell, usually when a person shakes their head," said McGonagall coldly, "they mean 'no.' So unless Miss Edgecombe is using a form of sign language as yet unknown to humans.
J. K. RowlingYou've sort of made up for it tonight,' said Harry. 'Getting the sword. Finishing off the Horcux. Saving my life.' 'That makes me sound a lot cooler than I was,' Ron mumbled. 'Stuff like that always sounds cooler than it really was,' said Harry. 'I've been trying to tell you that for years.' Simultaneously they walked forwards and hugged, Harry gripping the still sopping back of Ron's jacket.
J. K. Rowling