Cù Sídhe
The Cù Sídhe (Scottish Gaelic 'fairy hound') is a massive spectral hound the size of a Highland calf, with shaggy dark green or ghostly white fur, large rounded ears glowing blood-red, emerald eyes, and dinner-plate paws leaving no tracks. It wanders the Highlands and moors on misty nights, howling three times to foretell a death.