I've always enjoyed reading M R James, he writes marvelous ghost stories of steadily increasing creepiness. this is one of his best. Oh Whistle, and I'll Come to You, My Lad. Professor Parkins, a scholar on holiday, while poking around old Templar ruins at the seaside, finds an ancient metal whistle. On an impulse he blows it, and the wind rises. He also seems to see a vision of a man chased by something pale and horrible across the beaches. Back at his hotel he has the distressing experience of encountering what his whistle had evoked; a frighteningly malevolent cloth being with a face of crumpled linen .. I have already seen the BBC television version starring John Hurt, but the one with Michael Horden is even better. (Watch below).
@Sunstone Yes, it was a stunning adaptation. It actually surprised me when I read it, that its disturbing content got past the censors of the time, assuming books had censorship too. It really got under my skin, that one! I find it the strongest of his stories that I've read so far.