They come when a loved one is about to die.
A fetch is a ghostly twin of somebody who has just died, or of somebody who will very soon. When they foretell doom, they appear in the evening as shadowy apparations who vanish down alleys or halls when followed. Their appearance may even offer clues as to how death will occur. However, if you are lucky enough to see one in the morning, it may signal luck and long life…
Should you see your own spectral face in the afternoon or evening, your time has come to enter the next life!
(Okay, just so readers know – I’m taking the theme ‘evil spirits’ fairly loosely. Any spirit you wouldn’t want to meet in a dark alley qualifies!)