"'I think it must have been two o'clock at least when I thought I heard a sound in that--that odious dark recess at the far end of the bedroom....Without at first a suspicion of anything supernatural, on a sudden I saw an old man, rather stout and square, in a sort of roan-red dressing-gown, and with a black cap on his head, moving stiffly and slowly in a diagonal direction, from the recess, across the floor of the bedroom, passing my bed at the foot,...