
The Deep Ones are creatures in the
Cthulhu Mythos The Cthulhu Mythos is a mythopoeia and a shared fictional universe, originating in the works of American Horror fiction, horror writer H. P. Lovecraft. The term was coined by August Derleth, a contemporary correspondent and protégé of Lovecraft, t ...
of
H. P. Lovecraft
Howard Phillips Lovecraft (, ; August 20, 1890 – March 15, 1937) was an American writer of Weird fiction, weird, Science fiction, science, fantasy, and horror fiction. He is best known for his creation of the Cthulhu Mythos.
Born in Provi ...
. The beings first appeared in Lovecraft's novella ''
The Shadow over Innsmouth
''The Shadow over Innsmouth'' is a Horror fiction, horror novella by American author H. P. Lovecraft, written in November – December 1931 in literature, 1931. It forms part of the Cthulhu Mythos, using its motif of a malign undersea civilizatio ...
'' (
1931
Events
January
* January 2 – South Dakota native Ernest Lawrence invents the cyclotron, used to accelerate particles to study nuclear physics.
* January 4 – German pilot Elly Beinhorn begins her flight to Africa.
* January 22 – Sir I ...
), but were already hinted at in the early short story "
Dagon
Dagon or Dagan (; ) was a god worshipped in ancient Syria, across the middle of the Euphrates, with primary temples located in Tuttul and Terqa, though many attestations of his cult come from cities such as Mari and Emar as well. In settl ...
". The Deep Ones are a race of intelligent ocean-dwelling creatures, approximately human-shaped but with a fishy appearance. The males would regularly rape human women along the coast, creating societies of hybrids.
Numerous Mythos elements are associated with the Deep Ones, including the legendary town of
Innsmouth, the undersea city of Y'ha-nthlei, the
Esoteric Order of Dagon, and the beings known as Father Dagon and Mother Hydra. After their debut in Lovecraft's tale, the sea-dwelling creatures resurfaced in the works of other authors, especially
August Derleth
August William Derleth (February 24, 1909 – July 4, 1971) was an American writer and anthologist. He was the first book publisher of the writings of H. P. Lovecraft. He made contributions to the Cthulhu Mythos and the Lovecraftian horror, cosmi ...
.
Summary
The Deep Ones are an ancient species of amphibious sea-dwelling humanoids, whose preferred habitat is the deep ocean. A description is offered by the narrator of ''The Shadow Over Innsmouth'':
A very similar description is provided in the much-earlier story ''Dagon'':
A significant difference between the two narratives is that the single creature observed by the narrator is of a vast size, whereas the beings seen off Innsmouth are roughly human in scale. Despite being primarily marine creatures, Deep Ones can survive on land for extended periods of time. They possess biological immortality, and never die except by accident or violence. They worship twin deities, the cult of whom they have introduced among the human population of Innsmouth, who know them as "Father Dagon and Mother Hydra". However, the elderly derelict (and Order of Dagon initiate) Zadok Allen invokes
Cthulhu
Cthulhu is a fictional cosmic entity created by writer H. P. Lovecraft. It was introduced in his short story "The Call of Cthulhu", published by the American pulp magazine ''Weird Tales'' in 1928. Considered a Great Old One within the pantheon ...
in a moment of strong emotion, and
Robert M. Price has suggested that "Dagon" may have merely been "the closest biblical analogy to the real object of worship of the deep ones" The Deep Ones are or were opposed by mysterious beings known as the Old Ones, who have left behind magical artifacts that can keep them in check. This detail is one of the vestigial hints that
August Derleth
August William Derleth (February 24, 1909 – July 4, 1971) was an American writer and anthologist. He was the first book publisher of the writings of H. P. Lovecraft. He made contributions to the Cthulhu Mythos and the Lovecraftian horror, cosmi ...
developed into the mostly unnamed Elder Gods.
Esoteric Order of Dagon

The Esoteric Order of Dagon was the primary religion in Innsmouth after Marsh returned from the South Seas with the dark religion circa 1838. It quickly took root due to its promises of expensive gold artifacts and fish. Fish were a valuable commodity in Innsmouth, a fishing town.
The central beings worshipped by the Order were the
Father Dagon and Mother Hydra, and, to a lesser extent,
Cthulhu
Cthulhu is a fictional cosmic entity created by writer H. P. Lovecraft. It was introduced in his short story "The Call of Cthulhu", published by the American pulp magazine ''Weird Tales'' in 1928. Considered a Great Old One within the pantheon ...
. Dagon and Hydra were seen largely as intermediaries between the various gods rather than as gods themselves. Even so, the cultists sacrificed various locals to the Deep Ones at specific times in exchange for a limitless supply of gold and fish. When they ran out of locals, they would go to other places to kidnap people to be sacrificed. Eventually, things became so bad that the US government sent the police force to apprehend Marsh and his cult.
The Esoteric Order of Dagon (which masqueraded as the local
Masonic
Freemasonry (sometimes spelled Free-Masonry) consists of fraternal groups that trace their origins to the medieval guilds of stonemasons. Freemasonry is the oldest secular fraternity in the world and among the oldest still-existing organizati ...
movement) had three oaths that members had to take. The first was an oath of secrecy, the second, an oath of loyalty, and the third, an oath to marry a Deep One and bear or sire its child. Due to the latter oath, interbreeding became the norm in Innsmouth, resulting in widespread deformities and many half-breeds.
The Esoteric Order of Dagon was seemingly destroyed when one of Obed Marsh's "lost descendants" sent the
U.S. Treasury Department to seize the town. As a result, the town was more or less destroyed and the Order was thought disbanded.
Deep One hybrid
The backstory of ''The Shadow over Innsmouth'' involves a bargain between Deep Ones and humans, in which the aquatic species provides plentiful fishing and gold in the form of strangely-formed jewelry. In return, the land-dwellers give
human sacrifices and a promise of "mixing"—the mating of humans with Deep Ones. Although the Deep One hybrid offspring are born with the appearance of a normal human being, the individual will later in life transform into a Deep One, gaining immortality—by default—only when the transformation is complete.
The transformation usually occurs when the individual reaches middle age. As the hybrid gets older, they begin to acquire the so-called "Innsmouth Look" as they take on more and more attributes of the Deep One race: shrunken ears, bulging and unblinking eyes, a narrowed head which eventually goes bald,
scabrous skin that transforms into scales, and a neck which develops folds and later gills. When the hybrid becomes too obviously non-human, it is hidden away from outsiders. Eventually, however, the hybrid will be compelled to slip into the sea to live with the Deep Ones in one of their undersea cities.
Father Dagon and Mother Hydra
Mother Hydra and her consort Father Dagon are both Deep Ones overgrown after millennia ruling over their lesser brethren. Together with Cthulhu, they form the triad of gods worshipped by the Deep Ones (their names are inspired by Dragon, or
Dagon
Dagon or Dagan (; ) was a god worshipped in ancient Syria, across the middle of the Euphrates, with primary temples located in Tuttul and Terqa, though many attestations of his cult come from cities such as Mari and Emar as well. In settl ...
, the
Semitic fertility deity, and the
Hydra of
Greek mythology
Greek mythology is the body of myths originally told by the Ancient Greece, ancient Greeks, and a genre of ancient Greek folklore, today absorbed alongside Roman mythology into the broader designation of classical mythology. These stories conc ...
).
Mother Hydra is not to be confused with the entity in
Henry Kuttner
Henry Kuttner (April 7, 1915 – February 3, 1958) was an American author of science fiction, fantasy fiction, fantasy and horror fiction, horror.
Early life
Henry Kuttner was born in Los Angeles, California in 1915. Kuttner (1829–1903) and ...
's story "Hydra".
Y'ha-nthlei
"
Cyclopean
Cyclopean masonry is a type of masonry, stonework found in Mycenaean Greece, Mycenaean architecture, built with massive limestone boulders, roughly fitted together with minimal Engineering tolerance, clearance between adjacent stones and with clay ...
and many-columned Y'ha-nthlei" is the only Deep One city named by Lovecraft. It is described as a great undersea metropolis below Devil's Reef just off the coast of
Massachusetts
Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...
, near the town of
Innsmouth. Its exact age is not known, but one resident is said to have lived there for 80,000 years. In Lovecraft's story, the U.S. government torpedoed Devil's Reef, and Y'ha-nthlei was presumed destroyed, although the ending of the story implies it survived.
The name ''Y'ha-nthlei'' may have been inspired by the
Lord Dunsany
Edward John Moreton Drax Plunkett, 18th Baron Dunsany (; 24 July 1878 – 25 October 1957), commonly known as Lord Dunsany, was an Anglo-Irish writer and dramatist. He published more than 90 books during his lifetime, and his output consist ...
character "Yoharneth-Lahai", "the god of little dreams and fancies" who "sendeth little dreams out of
PEGANA to please the people of Earth."
Other authors have invented Deep One cities in other parts of the ocean, including Ahu-Y'hloa near
Cornwall
Cornwall (; or ) is a Ceremonial counties of England, ceremonial county in South West England. It is also one of the Celtic nations and the homeland of the Cornish people. The county is bordered by the Atlantic Ocean to the north and west, ...
and G'll-Hoo, near the volcanic island of
Surtsey
Surtsey ("Surtr's island" in Icelandic, ) is an uninhabited volcanic island located in the Vestmannaeyjar archipelago off the southern coast of Iceland. At Surtsey is the southernmost point of Iceland. It was formed in a volcanic eruption whi ...
off the coast of
Iceland
Iceland is a Nordic countries, Nordic island country between the Atlantic Ocean, North Atlantic and Arctic Oceans, on the Mid-Atlantic Ridge between North America and Europe. It is culturally and politically linked with Europe and is the regi ...
.
Anders Fager has described the city of "Ya' Dich-Gho" as located in the Stockholm skerries. It is accidentally destroyed in 1982 during a Swedish submarine-hunt. At least two surviving Deep Ones live in Stockholm. One of them sells aquarist's supplies. The destruction of Ya' Dich-Gho is described in "When Death Came to Bod Reef"; the city's history in "Herr Goering's Artefact" and the life of the survivors in "Three Weeks of Bliss".
See also
*
Selkie
Selkies are mythological creatures that can shapeshift between seal and human forms by removing or putting on their seal skin. They feature prominently in the oral traditions and mythology of various cultures, especially those of Celtic and ...
*
Cold Skin (Film)
References
Citations
Primary sources
* Definitive version.
Secondary sources
*
:—"Deep Ones", pp. 81–82. Ibid.
:—"Hydra (Mother Hydra)", p. 143. Ibid.
:—"Y'ha-nthlei", p. 340. Ibid.
* Robert M. Price (ed.) Bloomfield, NJ: Miskatonic University Press.
*
External links
''The Shadow Over Innsmouth'' by H. P. Lovecraft
{{The Shadow Over Innsmouth
Cthulhu Mythos species
Fictional amphibians
Literary characters introduced in 1931
Fictional sea monsters
Fictional species and races
Horror film villains
Literary villains
Underwater civilizations in fiction
The Shadow over Innsmouth
Piscine and amphibian humanoids