“He accelerated; so, many feet above. He was winning, gaining on the Snitch with every second — then — three dementors, three tall, black, hooded dementors, were looking up at him. An intense cold swept over him. Harry felt his own breath catch in his chest. The cold went deeper than his skin. It was inside his chest, it was inside his very heart. Harry’s eyes rolled up into his head. He couldn’t see. He was drowning in cold.”