Tradition: Irish Mythology, Scottish Mythology
Alternative Names: Sluagh na Marbh, Sluagh, Host of the Dead, Fairy Host
Category: Fairy
The Myth
The Sluagh, or Sluagh na Marbh, were a supernatural host of the unforgiven dead who traveled through the skies in Irish and Scottish folklore. They were imagined as the souls of the dead flying together through the air, often forming a crescent-shaped mass resembling a great flock of birds. Their appearance was especially associated with the Western Isles of Scotland, where the gathering of the dead around Halloween was also understood as a gathering of the fairy host.
The Sluagh were capable of descending upon a person from any direction and carrying them away through the air. They could transport their victims enormous distances, flying from one island to another, and were generally feared as dangerous beings to mortals. Yet their nature was not entirely hostile: some traditions remembered the Sluagh rescuing people who had become trapped in dangerous clefts among the rocks. Their ability to appear suddenly from the sky and carry humans away made them an especially terrifying presence in the remote landscapes of the Scottish islands.
The Sluagh were therefore imagined as an airborne supernatural army, neither entirely belonging to the world of the living nor completely separated from the fairy realm. Their name means a “host,” “army,” or “crowd,” fitting their appearance as a great collective of spirits rather than a single creature. As the Sluagh na Marbh, the “host of the dead,” they represented the restless or unforgiven dead moving together through the night sky, particularly during the supernatural season surrounding Halloween.
Sources
“Sluagh.” Wikipedia: The Free Encyclopedia. Wikimedia Foundation. Accessed October 5, 2026.
https://en.wikipedia.org/wiki/Sluagh