Miss Granger, you foolish girl, how could you think of tackling a mountain troll on your own? Five points will be taken from Gryffindor for this,†said Professor McGonagall. “I’m very disappointed in you.†Hermione left. Professor McGonagall turned to Harry and Ron. “Well, I still say you were lucky, but not many first years could have taken on a full-grown mountain troll. You each win Gryffindor five points.