harrypotterfreak: The train lurched to a sudden halt. Harry flew forward and hit Hermione. "Sorry!" Harry said turning pink in the face. Hermione giggled. "What is so funny?" Harry asked, the embarassment vanishing in a instant to be replaced by stupity. Hermione stopped laughing. "Now what?" Harry asked. Hemione wispered, "Harry it is cold, the lights went out, there is a dementor on the train!" Harry pulled out his wand just in time to point his wand at the creature and yell "EXPECTO PATRONUM!"