电动天幕遮阳帘half a mind to demand whether you had bewitched my horse: I am

Harry lay flat on his back, breathing hard as though he had been running. He had awoken from a vivid dream with his hands pressed over his face. The old scar on his forehead, which was shaped like a bolt of lightning, was burning beneath his fingers as though someone had just pressed a white-hot wire to his skin.

电动天幕遮阳帘 

Harry had a fleeting memory of a club soaring high into the air and landing loudly on the thick skull of a troll ... smiling slightly, he bent over the paper and began to write.
He cast Harry an oddly furtive look as he said it.