midnight
My duty is to give warning when I see true signs of what 's a-going to happen . For a true sign is as plain as daylight to me . I never had a caul , and I do n't lay any claim to second sight . But I know what it means when I hear the dogs a-baying the midnight moon . I know , too , what 's a-coming to pass when the death-watch goes thump , thump , thumping in the wall right over my head the whole blessed night . And more than that , I was a-looking for both these true signs of bad luck before I heard 'em . That big black ring round the comet 's head that I 've seen for a night or two back told me plain enough what to expect .