Ustreł

Tradition: Bulgarian Mythology
Alternative Names: Usov
Category: Pig, Vampire


The Myth

Ustreł is a vampiric demon from southeastern Bulgaria, particularly associated with the regions around Burgas and Malko Tarnovo. It originates from the spirit of a child conceived on a Saturday and dying unbaptized. Nine days after burial, the child’s corpse transforms into a strange creature resembling a squirrel, which digs its way out of the grave and emerges into the world. It hunts only at night, feeding on the blood of cattle, sheep, and oxen before eventually attacking humans when it has regained enough strength. During the day, it retreats to its grave.

The Ustreł changes its appearance as it grows, passing through three distinct stages. In its earliest form, it resembles a smooth, bulging bagpipe bellows, without legs, wings, a tail, or a neck. It has a short, pig-like snout, human-like eyes with intensely red corners and eyelids, two holes in place of a nose, and short limbs ending in long, curved black claws. Its body has no bones. At this stage, it can only be killed with a hawthorn stake.

As it grows stronger, the Ustreł begins hiding among the horns of livestock. It then resembles a featherless owl without legs or a beak, possessing only membranous wings. When captured, it cries like a human baby. During this stage, it can be killed with either hawthorn or a silver coin. After approximately six months, it reaches its final stage and can transform into either a human or an animal. In human form, it appears almost ordinary, except that it lacks the cartilage separating the nostrils, leaving a single opening instead.

The Ustreł drains the blood of animals, causing them to die on the same night they are attacked. Its victims can be recognised by bluish, swollen humps or bellies where the demon has bitten them. Once it has fed sufficiently, it may become so heavy that it cannot move easily, or so light that it can perch among the horns of cattle or on their udders. It avoids Saturdays, when it loses its strength, and fears both wolves, which can see it, and fire. After becoming human, it may produce offspring that are themselves vampires. The demon can be destroyed by a person born on a Saturday or driven away with living fire, created by rubbing dry limewood together. Such fire was used to lead afflicted people and animals through the flames, while specially baked bread could carry the Ustreł away from a village.


Sources

“Ustreł.” Wikipedia, wolna encyklopedia (Polish Wikipedia). Wikimedia Foundation. Accessed October 11, 2026. https://pl.wikipedia.org/wiki/Ustre%C5%82


Łapiduch

Tradition: Polish Mythology
Alternative Names: Lapiduch
Category: Demon


The Myth

Łapiduch is a grotesque demon from Polish folklore, particularly associated with the Sandomierz Forest region. It has a bulbous, rounded body supported by clawed feet with five toes. Its short arms end in long fingers armed with sharp claws, giving it a monstrous appearance suited to its role as a tormentor of the dead.

The demon dwells in desolate wastelands, where it waits in ambush for penitent souls. When one of these souls enters its territory, Łapiduch captures it and subjects it to terrible torment, making the unfortunate spirit cry out in suffering. Unlike many demons, however, Łapiduch does not attack living people. Its targets are exclusively the souls of the dead, whom it torments in the lonely places where it lurks.


Sources

“Łapiduch.” Wikipedia, wolna encyklopedia (Polish Wikipedia). Wikimedia Foundation. Accessed October 11, 2026. https://pl.wikipedia.org/wiki/%C5%81apiduch


Dydko

Tradition: Polish Mythology
Alternative Names: Didko, Ditko, Dytko, Dydo
Category: Demon


The Myth

Dydko is a strange supernatural creature from Polish folklore, originally feared as a demon and later transformed into a bogeyman used to frighten children. It is usually depicted as an awkward, grotesque figure with an enormous head and long, spindly legs made of straw, resembling the legs of a spider. Its unnatural appearance makes it a disturbing presence, particularly when encountered in the darkness.

In earlier beliefs, Dydko was associated with household guardian spirits, but over time it became a more sinister being connected with the wilderness and the night. It was feared as a forest devil before eventually becoming a creature invoked by adults to frighten disobedient children. Like other bogeymen, it lurks in the imagination as a threat waiting for those who misbehave.

According to later tales, Dydko appears in mirrors to young women who spend too much time admiring their reflections. It is said to emerge between midnight and half past three in the morning, producing a disgusting slurping sound that reveals its presence. Its association with mirrors, darkness, and the late hours of the night makes Dydko a particularly unsettling figure in Polish folklore.


Sources

“Dydko.” Wikipedia: The Free Encyclopedia. Wikimedia Foundation. Accessed October 11, 2026. https://en.wikipedia.org/wiki/Dydko


Omoshiro

Tradition: Japanese Mythology
Alternative Names: –
Category: Mountain dweller


The Myth

Omoshiro is a mysterious supernatural presence associated with a strange cry heard in the mountains of Tōno, Japan. Its appearance is unknown, and it is remembered chiefly for a startling voice that echoes through a secluded valley beneath the moonlight.

One moonlit night, a young man named Kikuchi Yanosuke was crossing Sakaiki Pass with his companions on the way to the coast. As they passed through Ōtani-chi, a deep valley filled with birch trees, thick vegetation, and a stream below, Yanosuke played his flute. Suddenly, a voice rang out from the bottom of the valley, shouting, “Interesting!” The men were overcome with fear, turned pale, and fled.

Yanosuke later experienced another strange event in the mountains, when he heard a woman’s scream. At the same time, his sister was being murdered by her own son. The connection between these events remained mysterious, leaving Omoshiro as an unexplained presence associated with eerie voices, fear, and ominous happenings in the mountains.


Sources

“Omoshiro.” 新版TYZ 妖怪図鑑 (New TYZ Yokai Encyclopedia). https://tyz-yokai.blog.jp/archives/1074589312.html


Bomka

Tradition: Russian Mythology
Alternative Names: Bomb, Bogeyman
Category: Forest Dweller


The Myth

Bomka is a frightening figure from Slavic folklore used by adults to scare naughty children into behaving. Its appearance is unknown, and no definite description of its body or features survives. This uncertainty makes Bombka an ominous presence, feared not for any particular shape but for the threat associated with its name.

Parents warn misbehaving children that Bombka will come to get them, sometimes threatening to put them into a sack or eat them. In one traditional warning, children are told that if they do not behave, Bombka will come and devour them. The creature serves as a bogeyman lurking in the imagination, embodying the frightening consequences adults threaten when children refuse to listen.


Sources

“Bomka.” New Bestiary (Bestiary.us). Accessed October 11, 2026. https://www.bestiary.us/bomka


Bobo

Tradition: Mordvin Mythology, Russian Mythology
Alternative Names: None known
Category: Forest Dweller


The Myth

Bobo is a short, furry creature from Mordvin folklore, covered in thick black fur and carrying a large sack. It has a bird-like leg and a long, bushy tail, and its strange appearance makes it a frightening figure for mischievous children. Bobo lives in vegetable gardens or in the forest, hiding until evening before emerging to frighten children who refuse to behave.

When children are naughty or misbehave, their mothers or grandmothers warn them that Bobo is coming from the forest. The creature is said to put those who are not ready for bed into its sack and carry them away. Although children imagine Bobo as a terrifying monster, it is not especially dangerous in reality. It mainly serves as a frightening figure used by adults to encourage children to behave and go to sleep.

Bobo emerges late in the evening and peers into the windows of houses, searching for mischievous children. It makes noises by banging its furry paws and muttering, “Bo-bo-bo!” However, it only scares children who are still awake and refuses to stay when everyone has settled down and gone to sleep. Once the house becomes quiet, Bobo chooses the warmest place to sleep itself, curling up comfortably like a furry creature seeking shelter.


Sources

sagen.at contributors. (n.d.). Das Bichelgretchen an der Syr. In sagen.at, from https://www.sagen.at/texte/sagen/luxemburg/Bichelgretchen.html


Inviting Pond

Tradition / Region: Czech Mythology
Alternate Names: —
Category: Flame


The Myth

The Inviting Pond is a mysterious light associated with the Herrenweiher pond in Oppelitz.

One night, a poor woman was walking past the Herrenweiher pond when a little light danced toward her and whispered, “Come with me into the pond, you’ll be well off there.”

The woman resisted, saying, “What will my children do?” But she went closer to the water, and the lights grew more and more numerous, dancing, beckoning, and telling her, “Come on, come, your children will be taken care of.”

Suddenly, the woman shuddered and ran away. At home, she immediately looked for her children. They were lying dead in bed.


Sources

Hans Watzlik. “Jungferblitz.” In Böhmerwald-Sagen. Budweis: Böhmerwalder Dorfbücher, 1921, Heft 5. Reproduced by SAGEN.at. https://www.sagen.at/texte/sagen/tschechien/watzlik/jungferblitz.html


Feuerkugel

Tradition: Luxembourg Mythology
Alternative Names: The Firebal
Category: Flame


The Myth

Die Feuerkugel is a supernatural ball of fire that haunts the Höllenfeld near Bech, Luxembourg. It appears like a living bowling ball, rolling along the road and persistently moving beneath the feet of anyone who tries to step around it. Its strange movements make it almost impossible to avoid, as though it deliberately seeks to trip those who encounter it.

One evening, a winemaker from Bech passed the Höllenfeld late at night. He had often boasted that he had walked past the place a thousand times, at every hour of the night, without ever witnessing anything unusual. This time, however, a fireball appeared on the road before him. It rolled toward his feet, repeatedly threatening to slip beneath whichever foot he put forward. Unable to escape its path, the winemaker watched as the ball grew larger and larger before rising into the air and hovering above his head.

Suddenly, the enormous fireball exploded with a terrifying bang. A blazing figure sprang onto the road in front of the deathly pale winemaker, clapped its hands, and vanished. The encounter shattered the man’s confidence, and the once fearless winemaker could never again be persuaded to pass the Höllenfeld after nightfall.


Sources

La Fontaine, Edmond de. Luxemburger Sagen und Legenden. Luxemburg: Jos. Beffort, 1882.


Sammelplatz der Irrlichter

Tradition: Luxembourg Mythology
Alternative Names: The Gathering Place of the Will-o’-the-Wisps
Category: Flame


The Myth

The Sammelplatz der Irrlichter, meaning the Gathering Place of the Will-o’-the-Wisps, is a notorious haunted area in the fields of Ertchessteil near Bech, along the Moselle River in Luxembourg. For generations, the place has been feared throughout the surrounding countryside because of the mysterious wandering lights that gather there. Nowhere else were the Irrlichter said to be so numerous or so daring, appearing in groups of dozens to torment those who passed through after dark.

The will-o’-the-wisps delighted in leading late-night travellers astray, luring them into dangerous swamps before clapping their hands in malicious amusement at their victims’ misfortune. They pursued those who fled in terror, chasing them through the darkness and making escape difficult. Yet the spirits were not entirely fearless: a traveller who stood their ground courageously and quickly made the sign of the cross could force them to retreat helplessly.

The tricks played by the Irrlichter at Ertchessteil were remembered as especially notorious, and many of their deceptions resembled those told in other local legends. The field remained famous as their principal gathering place, where the wandering lights assembled in great numbers to frighten travellers and lead them into danger.


Sources

La Fontaine, Edmond de. Luxemburger Sagen und Legenden. Luxemburg: Jos. Beffort, 1882.


Geldfeuer bei Bous

Tradition: Luxembourg Mythology
Alternative Names: –
Category: Flame


The Myth

Das Geldfeuer bei Bous, meaning the Money Fire of Bous, is a mysterious supernatural flame said to appear at night upon the surface of a small pool called the Weiherchen, situated between the villages of Bous and Erpeldingen in Luxembourg. The pool is fed by a natural spring, and its waters were once the setting for a strange and frightening encounter involving a fire believed to reveal hidden wealth.

One night, people from Bous witnessed a money fire burning in the middle of the water. Hoping to claim the treasure associated with the mysterious flame, a young man ran toward it. However, he soon returned in terror, having witnessed something far more sinister than a simple fire.

In the water, he had seen three witches striking the surface with iron rods, whipping it in an attempt to raise evil mists. The sight frightened him away from the flame, leaving the supposed treasure untouched and revealing the dangerous supernatural forces lurking beneath the appearance of easy riches.


Sources

La Fontaine, Edmond de. Luxemburger Sagen und Legenden. Luxemburg: Jos. Beffort, 1882.