‘Get—off—me!’ Harry gasped. For a few seconds they struggled, Harry pulling at his uncle's sausage-like fingers with his left hand, his right maintaining a firm grip on his raised wand; then, as the pain in the top of Harry's head gave a particularly nasty throb, Uncle Vernon yelped and released Harry as though he had received an electric shock. Some invisible force seemed to have surged through his nephew, making him impossible to hold.
