The Moddey Dhoo of Peel Castle

Peel Castle stands on St Patrick’s Isle, a small rocky island joined by a causeway to the fishing town of Peel on the west coast of the Isle of Man. It is one of the most important historic and religious sites in the British Isles: an early Christian monastery with a round tower, a Norse stronghold first fortified in wood under King Magnus Barefoot in the late 11th century, the medieval cathedral of St German, and a curtain wall of red sandstone enclosing almost two hectares. Excavations in the 1980s uncovered an extensive graveyard and traces of Magnus’s fort.

Its ghost is a dog. In Manx, moddey dhoo means simply “black dog,” though the English writer George Waldron, whose Description of the Isle of Man (first published in 1731) is the one early written source for the legend, spelled it “Mauthe Doog,” and the misspelling stuck. Waldron wrote that a large black spaniel with curled, shaggy hair haunted the castle, coming out at dusk from a passage that ran through the old church to the captain of the guard’s quarters, and lying by the guardroom fire all night. The soldiers grew used to it but never dared be alone with it, and always went in pairs to carry the keys through the passage.

One night, according to Waldron, a guard emboldened by drink snatched the keys and went alone, mocking the dog. His comrades heard a terrible noise; he came back speechless with horror and died three days later without ever saying what he had seen. The dog was never seen again, and the passage was sealed. Sir Walter Scott borrowed the story for his novel Peveril of the Peak (1823), turning the dog into a demon in the shape of a huge black mastiff and spreading the tale far beyond the island.

The black dog is not unique to Peel. Manx folklore, as collected by W. W. Gill in A Manx Scrapbook (1929) and later works, places a moddey dhoo on lonely roads and lanes around the island; Gill recorded modern sightings near Ramsey of a shaggy dog “as big as a calf” with burning eyes, one by a doctor driving at night in 1931. Today Manx National Heritage invites visitors to Peel Castle to watch for the ghostly black dog said to haunt the isle.

A large black dog with shaggy hair — a spaniel in Waldron, a mastiff in Scott — appearing at dusk in the guardroom and passages of the castle; elsewhere on the island, a calf-sized black dog with glowing eyes seen on dark roads.

The guardroom and the former passage through the church to the captain’s quarters inside Peel Castle; island-wide sightings on lanes near Ramsey (Milntown corner) and in the south near Ballamodda.

The legend inspired Scott’s Peveril of the Peak, appears in Manx folklore collections and tourist literature, and has spread into modern fantasy, from the webcomic Gunnerkrigg Court to Seanan McGuire’s October Daye novels and the video game Fire Emblem: The Sacred Stones.