He didn’t get a chance to enjoy it completely, because the ground underneath his feet trembled and suddenly he found himself thrown into the air, landing several feet away with a scream. He rolled his body to the side, crawling behind a pile of rubble as he willed the pain on his back to go away. Harry stayed as quiet as he could, listening to the unsteady steps of his enemy as his wand poised itself against the ground, ready to strike—