Suddenly, in a mere matter of seconds, the train goes cold. Frost licks the edges of the window; Harry starts to feel dizzy. The creeping shadows freeze him in place, and that familiar feeling of helplessness clamps down on him. The skeletal hand wraps around the door to the carriage, he feels his breathing quicken and his throat close. He stares in the creatures eyes for only a few moments before he feels himself slipping.