The Vampire Murders

So thorough was Harry's urge to overtake the shrouded menace up above, that he failed to realize how mysterious was the thing that stopped him. But his chase was ended when he sprawled on the top steps, with only his head and shoulders on the landing. All he could do was make a wild reach with his hands, hoping to grab the ankles of the departing vampire in the manner some unknown hand had snatched his own.