Shapeshifter

Gytrash

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Tradition / Region: English Mythology
Alternate Names: Guytrash, Guytresh
Category: Dog, Shapeshifter

The Myth

The Gytrash is a feared spirit of northern England, especially in the West Riding of Yorkshire. It is known as a wandering shape-changer that haunts lonely roads, crossroads, and empty country paths where travelers pass after dark.

The Gytrash rarely keeps one form. It most often appears as an animal — commonly a horse, mule, calf, or large dog. When it takes the form of a dog, it is usually described as huge, shaggy, and unnatural, with strange eyes that glow in the dusk. Sometimes it drags chains or moves silently beside the road, watching those who pass.

Travelers who meet the Gytrash do not always meet the same fate. In many tales it is dangerous, leading wanderers astray into marshes, forests, or darkness from which they may never return. Its appearance is often taken as a bad omen, a sign of misfortune or death.

Yet in other stories the spirit is not wholly malevolent. Some say the Gytrash may guide a lost traveler back onto the proper road, escorting them silently through the night until safety is reached before vanishing again.

The spirit became widely known through the stories of the Brontë family. In one famous account, a lone traveler walking at dusk sees what she believes to be a Gytrash: first a spectral horse approaching, then a huge black-and-white dog gliding along the hedge, its presence filling the road with unease.

The Gytrash is remembered as a restless being of the night — neither ghost nor demon nor fairy, but a wandering spirit that moves between shapes, appearing where the road is empty and the darkness is deep.

Gallery

Sources

Wikipedia contributors. (n.d.). Gytrash. In Wikipedia, from https://en.wikipedia.org/wiki/Gytrash

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Prepelitsch

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Tradition / Region: Romanian Mythology
Alternate Names: —
Category: Dog, Shapeshifter

The Myth

Near Agnetheln, a young married couple once worked together in the fields. When their drinking water was gone, the husband told his wife he would fetch more. Before leaving, he warned her that if a dog should come and attack her, she must defend herself bravely.

No sooner had he gone than a large dog appeared and rushed at the woman. It was fierce and relentless. She fought back as best she could, struggling to drive it away, but the beast managed to seize her apron and tear off a corner before finally running off across the fields.

Some time later her husband returned with the water. As she turned toward him, she froze in horror. Caught between his teeth was the very piece torn from her apron.

From that moment it was clear that the dog had not been an ordinary animal, but the man himself in another form.

Gallery

Sources

sagen.at contributors. (n.d.). Prepelitsch. In sagen.at, from https://www.sagen.at/texte/sagen/rumaenien/siebenbuergen/prepelitsch.html

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Waterreus

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Tradition / Region: Dutch Mythology
Alternate Names: none recorded
Category: Mermaid, Shapeshifter

The Myth

Along the coast near Scheveningen, people once spoke of a being who rose from the sea and wandered near the shore. From above the water he appeared as a handsome young man, fair-faced and strong, so beautiful that any girl who saw him might fall in love at once. Yet those who knew the tale warned that beneath the surface he was no man at all, but a sea-being with the tail of a fish.

It was said that if a girl truly wished to keep him in the world of humans, there was only one way. She had to draw the sign of the cross upon his forehead three times. If she succeeded, the water spirit would lose his sea-form and become fully human, bound to live on land.

Because of this tale, the people of the coast spoke of such beings as water giants, or waterreuzen, and the name came to be used for others of their kind. They remained figures of both longing and caution — beautiful strangers from the sea, who might be turned into husbands, if only the right sign were made before they slipped back beneath the waves.

Gallery

Sources

abedeverteller.nl contributors. (n.d.). Van aardmannetje tot zwarte juffer: Een lijst van Nederlandse en Vlaamse elfen en geesten. In abedeverteller.nl, from https://abedeverteller.nl/van-aardmannetje-tot-zwarte-juffer-een-lijst-van-nederlandse-en-vlaamse-elfen-en-geesten/

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Jiao Jing

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Tradition / Region: China
Alternate Names: Jiaoshou
Category: Mermaid, Shapshifter, Shark

The Myth

In ancient Chinese legend there is a creature called the Jiao Jing, also known as Jiaoshou. The name “jiao” is associated with the shark, and the being is said to dwell in deep waters.

It is told that the Jiao Jing is no ordinary beast of the sea, but a spirit capable of transformation. In certain accounts, the mermaid spirit can assume the form of a beautiful woman, or even that of a man. In this guise it walks among human beings, hiding its true nature beneath flawless skin and graceful form.

One tale speaks of a young woman who appeared before a household bearing sorrowful claims. She said she had been mistreated and abused by her stepmother, and a kindly couple of the Zhao family took pity on her and offered her shelter. She was quiet, strange, and unlike other women. In time it was discovered that she was not human at all, but a shark spirit in disguise.

Thus the Jiao Jing is remembered as a being of the waters who may rise from the depths wearing human beauty as a mask, moving silently between sea and shore.

Gallery

Sources

Wikipedia contributors. (n.d.). 鲛精. In Wikipedia, The Free Encyclopedia. Retrieved February 14, 2026, from https://zh.wikipedia.org/wiki/%E9%B2%9B%E7%B2%BE

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Finfolk

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Tradition / Region: Scottish Mythology
Alternate Names: Finnfolk, Finman, Finwife
Category: Mermaid, Shapshifter

The Myth

In the seas around the Orkney Islands lives a mysterious race known as the Finfolk, powerful shapeshifters who dwell beneath the waves in their hidden kingdom of Finfolkaheem. From that deep and glittering realm they rise each year in the warmer months, wading, swimming, or rowing silently to the shores of the islands in search of human captives.

The Finfolk are masters of magic and deception. They can disguise themselves as fishermen, animals, floating weeds, or drifting clothes upon the sea, drawing close to their chosen victim before suddenly seizing them. Fishermen working too far from shore, or young people wandering near the water’s edge, may be carried off in an instant and never seen again.

A captive taken by the Finfolk is forced into marriage and bound to a life beneath their rule. A man captured by a Finwife is carried to her people’s domain or sometimes to the enchanted island of Hildaland, where he must remain forever as her husband and servant. A woman taken by a Finman becomes his unwilling bride, doomed to live in fear of his temper and magic.

The Finman is said to be tall and gaunt, with a stern and gloomy face. He commands strong enchantments: he can cross the sea between Norway and Orkney in only a few strokes of his oars, hide his vessel from sight, and summon phantom fleets upon the waves. He fiercely guards the waters he claims as his own, wrecking the boats of those who intrude. Yet he is said to fear the sign of the cross, and some fishermen would mark it secretly on their boats for protection.

The Finwife begins her life as a creature of striking beauty, often appearing as a golden-haired mermaid with a voice as enchanting as any siren’s. She seeks a human husband, for only by marrying a man of the land can she keep her beauty. If she fails, she must wed a Finman, and from that time she grows steadily uglier, forced to labor and send her earnings back to her husband. Some tales say she keeps a black cat that can change into a fish and carry messages to her kin beneath the sea.

The Finfolk possess two homes. In winter they dwell in Finfolkaheem, a vast underwater palace lit by the glow of sea creatures, its halls hung with drifting curtains of weed and surrounded by gardens beneath the waves. In summer they travel to Hildaland, a magical island hidden by mist or lying just beneath the surface of the sea, where the stolen men and women live out their lives in captivity.

Because the Finfolk prize silver above all things, some say that a victim may escape by throwing coins into the water, distracting the creature long enough to flee. Yet many are not so fortunate, and the old stories warn that once a Finfolk hand has closed upon you, the sea will claim you forever.

Thus the Finfolk are remembered in Orkney lore not as gentle sea-folk, but as dark masters of the deep—
shapeshifters of the tide,
hunters of human brides and grooms,
and rulers of a hidden kingdom beneath the waves.

Gallery

Sources

Wikipedia contributors. (n.d.). Finfolk. In Wikipedia, The Free Encyclopedia. Retrieved February 14, 2026, from https://en.wikipedia.org/wiki/Finfolk

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Nixie

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Tradition / Region: German Mythology
Alternate Names: Nix, Näck, Nøkk, Nykur, Näkki, Neck, Nicker
Category: Mermaid

The Myth

In the rivers, lakes, and waterfalls of the northern lands lives a spirit known by many names—the Nixie. It is a being of the water, ancient and changeable, sometimes seen as a man, sometimes as a creature, and sometimes not seen at all until it is too late.

Most often the Nixie appears as a beautiful young man seated beside a brook or on a rock in the rapids. There he plays music—usually on a violin, though sometimes on a flute or horn. The melody is so enchanting that anyone who hears it feels compelled to follow. Women, children, and wandering travelers drift closer to the sound, stepping into the water without realizing it, until the river closes over them and they vanish beneath the surface.

At times the spirit is not cruel, only lonely. Some stories tell of people who approached him with offerings—drops of blood, drink, or tobacco—and in return he taught them music so powerful that trees swayed and waterfalls seemed to pause. Yet even in such tales, the Nixie never leaves the water for long, and sooner or later he returns to the stream that is his true home.

Because the Nixie is a shapeshifter, he does not always appear as a man. He may become a horse standing beside a stream, inviting riders onto his back before plunging into the water with them. He may appear as floating treasure, driftwood, or some harmless animal near the bank. In all these forms he draws people closer to the water’s edge.

There are also tales in which he takes a human lover, living for a time among people. But these unions never last. The Nixie cannot live long away from flowing water, and he always returns to the river, leaving the human world behind.

In some regions it is said that before a drowning occurs, the Nixie cries out at the place where it will happen. Those who hear the call know that the water is about to claim a life.

Thus the Nixie remains in the folklore of the north:
a musician in the rapids,
a shadow beneath the lake’s surface,
and the unseen hand that waits in deep water.

Gallery

Sources

Wikipedia contributors. (n.d.). Nixie (folklore). In Wikipedia, The Free Encyclopedia. Retrieved February 14, 2026, from https://en.wikipedia.org/wiki/Nixie_(folklore)

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Selkie

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Tradition / Region: Scottish Mythology
Alternate Names: Selkie folk, Seal folk, Haaf-fish (large seals in folklore)
Category: Mermaid, Shapeshifter

The Myth

Along the coasts of the Northern Isles it is said that certain seals are not animals at all, but selkie folk—beings who live as seals in the sea and as humans when they shed their skins upon the shore. On quiet nights they come out of the water, remove their seal hides, and dance in human form under the moon.

Many tales tell of men who find one of these skins and hide it. When the selkie woman returns and cannot find her seal coat, she is trapped on land. The man forces her to become his wife, and though she lives with him and may bear his children, her heart is always with the sea. She spends her days gazing toward the waves, longing for the place she came from.

Years may pass this way, until one day she discovers the hidden skin—sometimes by chance, sometimes with the help of a child who unknowingly reveals its hiding place. The moment she touches it, she runs to the shore, puts it on, and slips back into the water. However much she loved her children, she does not return. Some say the children later see a great seal watching them from the sea, crying out softly as if in farewell.

There are also stories of male selkies. In human form they are said to be strikingly handsome and dangerously charming. They come ashore to seek out lonely women, especially those whose husbands are long at sea. A woman wishing to summon one might weep into the ocean, and the selkie would rise to her. From such unions children might be born, sometimes marked by webbing between their fingers or toes.

Other tales speak of seals that are killed by fishermen, only for their bodies to change into human form. Without their skins, these seal-people cannot return to their underwater homes. In one story, a stranded fisherman is carried safely back to shore by a grieving selkie in exchange for the return of a stolen skin, for without it the creature could never go back to the sea.

Thus the selkie folk are remembered as beings of two worlds—living in the deep, walking the shore in borrowed human shape, and forever drawn back to the water that is their true home.

Gallery

Sources

Wikipedia contributors. (n.d.). Selkie. In Wikipedia, The Free Encyclopedia. Retrieved February 14, 2026, from https://en.wikipedia.org/wiki/Selkie

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Melusina of the Bock Rock

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Tradition / Region: Luxembourg Mythology
Alternate Names: Melusina, Melusine of Luxembourg, Water Nymph of the Alzette
Category: Mermaid, Shapeshifter, Nymph

The Myth

Long ago, Count Siegfried, a noble knight, became lost while hunting and came upon a deep valley where the Bock rock rises above the Alzette River. There he heard a wondrous song and saw a beautiful maiden seated upon the ruins of an ancient castle. She was Melusina, a water nymph of the valley. When she noticed him, she veiled her face and vanished with the setting sun.

The vision never left Siegfried’s mind, and he returned again and again to the valley. At last he met the maiden once more and confessed his love. Melusina agreed to marry him, on the condition that she would never be forced to leave the rock and that he must never seek her presence on Saturdays, when she wished to be alone. Siegfried swore to honor this oath.

To bring her home, he exchanged his lands for the barren Bock rock and, with supernatural help, built a great castle upon it. He married Melusina, and they lived happily together, and she bore him seven children. Yet each Saturday she withdrew to her chamber and locked herself away.

After many years, stirred by the suspicions of others, Siegfried resolved to learn her secret. One Saturday he crept to her door and looked through the keyhole. Inside he saw Melusina bathing in a wave-filled chamber, combing her long golden hair. But below her waist her body ended in a monstrous fishtail that lashed the water. With a cry of horror, he revealed himself. At once Melusina sank into the depths of the rock and was lost to him forever.

After her disappearance, a white figure was sometimes seen at night rocking her youngest child. It is said that Melusina still appears every seven years above the Bock rock in human form, begging to be freed. If no one rescues her, she cries out that not yet seven years have passed and sinks back into the stone.

Once, a soldier on night watch encountered her. She told him that to free her he must stand behind the altar in the Dominican church at midnight for nine consecutive nights. On the tenth night she would appear as a fiery serpent holding a key in her mouth, which he must take with his own mouth and throw into the Alzette River. Only then would she be redeemed and the ancient fortress rise again.

The soldier kept the vigil for eight nights but arrived late on the ninth. That night terrible roaring was heard around the Bock rock, and the chance of her redemption was lost.

Since then Melusina is said to circle the rock and cry out whenever danger threatens the city. Every seven years she is believed to make a single stitch on a mysterious garment she is weaving from flax that grows upon the bare rock. When the garment is finished, she will be freed — but it is said that the city itself will then fall into ruin.

And so Melusina remains bound beneath the Bock to this day, waiting for the one who will finally release her.

Gallery

Sources

sagen.at contributors. (n.d.). Melusina. In sagen.at, from https://www.sagen.at/texte/sagen/luxemburg/Melusina.html

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Yok-yok

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Tradition / Region: Aboriginal Mythology, Australian Mythology
Alternate Names: —
Category: Mermaid, Shapeshifter

The Myth

In sacred waterholes across the land dwell spirits known as yok-yok, beings of the deep water who belong to the old time of creation.

They are most often seen as young women with fish tails and long green hair that drifts like seaweed across the surface. When people see strands of weed floating on still water, they say it is the hair of a yok-yok rising from below.

These spirits are tied to the life of the land. Where they dwell, water is strong and fertile. If a woman passes near a waterhole where a yok-yok lives, she may conceive a child, for the spirit’s power brings life into the world. They are also bringers of rain, and when they are pleased, the clouds gather and the land is nourished.

But they are not always gentle. If angered or disrespected, yok-yok can stir the waters and call down storms that flood the land and destroy what grows there.

They are shapeshifters and do not always appear as mermaids. At times they take the form of crocodiles, snakes, or great fish. Some stories say they may grow legs and walk the earth at night, or take wings and pass through the sky like dragonflies.

Now and then a yok-yok falls in love with a human man and lives with him for a time. Yet such unions never last. In the end she returns to the water, drawn back to the place where she belongs.

Some say the yok-yok are daughters of Ngaliod, the great creator linked to the Rainbow Serpent. Others say they are not merely his children but another form of the same ancient power—spirits of the living water that has always flowed through the world.

Gallery

Sources

Bestiary.us contributors. (n.d.). Iok-Jok. In Bestiary.us, from https://www.bestiary.us/iok-jok/

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Ku-Nyōbō

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Tradition / Region: Japanese Mythology
Alternate Names: Mei-kuwanu Nyōbō (“The Wife Who Does Not Eat”)
Category: Yōkai, shapeshifter, Mountain dweller

The Myth

There was once a man so stingy that he constantly complained about the cost of food. Again and again he declared that what he truly wanted was a wife who did not eat at all. One day, as if answering his foolish wish, a beautiful young woman appeared before him and said calmly, “I do not eat. Please take me as your wife.” Delighted, the man married her at once.

The woman was everything she promised. She worked tirelessly from morning until night and never once sat down to eat a meal. Yet despite this, something strange began to happen. The rice chest in the house grew emptier by the day. No matter how carefully the man measured it, the rice continued to vanish. Suspicion crept into his mind.

One morning, the man pretended to leave for work but instead hid himself in the attic, peering down to spy on his wife. When he was certain she believed herself alone, the woman set a great pot on the fire and cooked an enormous amount of rice. She shaped the rice into ball after ball, far more than any one person could eat. Then she did something horrifying. Letting her hair fall loose, she opened a hidden opening at the top of her head and began stuffing the rice balls into it, one after another. At that moment, the man understood that his wife was no human being, but a monster in disguise.

That evening, shaken with fear, the man confronted her and dismissed her from the house. Realizing her secret had been discovered, the woman did not protest. Instead, she asked for a large bucket as the price of her departure. The man agreed, eager only to see her gone. But once the bucket was ready, the wife suddenly seized him, shoved him inside, and carried the bucket upon her back as she fled into the mountains, revealing her monstrous strength.

Along the way, the man managed to escape and hid himself among thick patches of mugwort and iris. When the wife pursued him, she stopped short, unable to come near those plants. Snarling in frustration, she turned back and vanished into the wilds.

From that time on, people said that mugwort and iris could ward off such creatures, and they began hanging them from their eaves during the May Festival. As for the wife who claimed she did not eat, her true form was never agreed upon. Some said she was a mountain hag, others a demon, a snake, a spider, a frog, or even a crow. But all versions agreed on one thing: a wife who eats nothing is not to be trusted.

Gallery

Sources

TYZ-Yokai Blog contributors. (n.d.). クニョボウ (Ku-Nyōbō). In TYZ-Yokai Blog, from https://tyz-yokai.blog.jp/archives/1029983868.html

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