I don’t believe him,” said Hermione in a very unsteady voice, the moment they were out of earshot of Hagrid. “I don’t believe him. I don’t believe him. . . .” “Calm down,” said Harry. “Calm down!” she said feverishly. “A giant! A giant in the forest! And we’re supposed to give him English lessons! Always assuming, of course, we can get past the herd of murderous centaurs on the way in and out! I — don’t — — him!