Oschaert

Region/Culture: Western Europe
Mythos: Belgium Mythology, Dutch Mythology
Primary Type/Nature: Shapeshifters
Mythical Attributes: A malicious shapeshifting spirit that leaps onto victims’ backs, growing heavier until they collapse or reach a crossroad.
Role in Mythos: Serves as both a road haunter tormenting nighttime travelers and a moral enforcer targeting those with guilty consciences.
Relation to Humans: Oschaert terrorizes people on roads and near water, jumping on their backs and clawing into their flesh, with particular cruelty reserved for sinners. Victims can escape only by reaching a crossroads, finding an image of the Virgin Mary, or reciting prayer.

The sound came first. Iron links scraping over cobblestone, slow and deliberate, somewhere behind. Then nothing. Then closer. Around Hamme, near Dendermonde in the flat country of East Flanders, the people knew that sound. They knew not to turn around.

Oschaert was the shapeshifter that stalked the roads and waterways of Flanders and the Waasland, a spirit with no fixed body and no particular interest in fairness. Its name, according to the folklorist van Hageland, may derive from the archaic Flemish ors (horse, or more broadly a mount) combined with hard (strong, headstrong), marking it as a dangerous steed from the very syllables. Other scholars connect the first element to os, meaning ox. Either way, the name promised something large, stubborn, and not remotely interested in cooperation.

The creature haunted the area around the chapel of Twee Bruggen most persistently, though sightings spanned maritime Flanders, the polders near Doel, and the village of Kleit in Maldegem. A related spirit called Ossaert roamed the Zeeland region across the Dutch border, with stories echoing so closely that the two were likely branches of the same tradition, separated by political boundaries that meant nothing to the thing dragging chains through the fog.

What made Oschaert distinctive among Flemish road haunters was its refusal to commit to a single shape. It appeared as a black dog the size of a donkey, a horse of unnatural proportions, a rabbit darting back and forth across a path, a towering giant whose head rose above the oaks, a dwarf, or a bull with a human face. At Knoche-sur-mer it served as a bogey to frighten children, wearing the head of a bull on a ghostly frame. The one constant, across nearly every account, was the heavy iron chain it dragged behind it, the scraping audible long before the creature itself came into view. Some witnesses described nothing more than a pale blue light drifting over the fields. Others saw fiery eyes, round and enormous, glowing like dinner plates in the dark.

A young man from Doel, crossing a field one night, saw an enormous horse blocking his path. He recognized the situation immediately. He tried to cut through the churchyard, but on the main road stood a dog the size of a horse. He crossed himself and took a different route, only to find a rabbit leaping back and forth in front of him with manic energy. He doubled around the churchyard one more time. There was Oschaert again, this time wearing the shape of a gigantic donkey, its eyes blazing like forge coals. The man gave up, jumped a wall, and ran home drenched in cold sweat.

The creature’s signature trick was the back-ride. Oschaert did not offer itself as a mount the way a kelpie might. It reversed the arrangement. It leaped onto the shoulders of a lone traveler, clung on with splayed claws, and grew heavier with every step. The weight pressed down through the spine, into the knees, into the mud. Those with clear consciences suffered the burden until they reached a crossroads or stumbled upon an image of the Virgin Mary, at which point Oschaert simply dropped off and vanished. Those with guilt fared worse. The spirit dug its claws deep into the flesh and scorched the back of the neck with its breath, hot enough to blister.

It was not all violence. Oschaert had a streak of petty mischief that bordered on comedy. One story from the Graaf-Hans levee tells of a farmer whose cart suddenly tilted, one wheel lifting clean off the ground for no mechanical reason. Every time the farmer stopped to inspect it, both wheels sat flat and nothing looked wrong. The moment he moved, the tilt returned. His servant, walking the same route later, heard a voice from a culvert muttering about pranking someone. When the servant shouted a threat into the dark, Oschaert exploded from the water and threw him in. The man wandered lost for hours before finding his way home.

Oschaert also ruled the local waters and demanded tribute. Fishermen returned the first fish of every catch as an offering. One fisherman named Blommaert, working out of Kieldrecht, noticed his fish disappearing from the tub by his window and ashes on the hearth where something had been cooking. He could find no sign of a break-in. The second time it happened, Blommaert covered the hearth in horse dung and scattered ashes over it as camouflage. Oschaert arrived as usual, announced its intention to cook, and spoiled the stolen fish in the filth. The creature could be fooled. It just did not enjoy the experience.

The spirit could also be summoned, which was unwise. Near the chapel of Twee Bruggen, anyone foolish enough to call out the invocation would find Oschaert on their back within moments, riding them to the nearest crossroads. In areas where people regularly dared the creature to appear, it reportedly grew more vicious, as if the repeated provocations soured whatever thin patience it possessed.

Oschaert belonged to a family of Flemish back-riding shapeshifters that included the Kludde, which haunted Brabant and Dendermonde with a similar repertoire of black dog forms and spine-crushing rides, and the coastal Roeschaard, which terrorized the dunes near Blankenberge. All three dragged chains. All three targeted night travelers. All three could be repelled by sacred ground, crossroads, or Christian symbols. The pattern speaks to a deeply rooted anxiety about travel after dark in the Low Countries, where flat terrain, mist, and water made every road feel exposed and every shadow feel like company.

Oschaert’s powers were considerable but circumscribed. It could shift shape at will, grow to enormous size, appear and vanish without warning, control local waterways, and increase its weight to crushing proportions while riding a victim’s back. It breathed fire hot enough to burn skin. It could lift cart wheels, steal fish, and harry people across miles of countryside without tiring.

But it could not cross a crossroads while mounted on a victim. It could not endure the sight of the Virgin Mary. Prayer dissolved its forms. And eventually, a priest at Hamme performed an exorcism and banished Oschaert to wander the seashore for ninety-nine years. At Spije, near Mechelen, a small coffin-shaped bridge over a stream is still pointed out as Oschaert’s coffin. Whether the ninety-nine years have elapsed is a question no one in Hamme seems eager to answer.

Frequently Asked Questions

What is Oschaert?

Oschaert is a malicious shapeshifting spirit from Flemish folklore that haunts the roads and waterways around Hamme in East Flanders, Belgium. It is best known for leaping onto the backs of lone travelers at night, growing heavier with every step, and tormenting those it considers guilty with claws and fiery breath.

What does Oschaert look like?

Oschaert has no fixed shape and appears in many forms, including a black dog the size of a donkey, an oversized horse, a darting rabbit, a towering giant, a dwarf, and a bull with a human face. The one constant across nearly every account is the heavy iron chain it drags behind it, audible long before the creature itself is seen. Some witnesses report only a pale blue light drifting over the fields or huge fiery eyes glowing in the dark.

How do you escape Oschaert?

Travelers can escape Oschaert by reaching a crossroads, finding an image of the Virgin Mary, or reciting prayer, all of which force the spirit to release its grip and vanish. People with clear consciences only have to endure the crushing weight on their backs until one of these is reached. Those with guilty consciences suffer worse, since Oschaert digs its claws into their flesh and scorches the back of the neck with breath hot enough to blister.

Where does Oschaert live?

Oschaert haunts the roads, fields, and waterways of Flanders and the Waasland, with its most persistent presence reported around the chapel of Twee Bruggen near Hamme. Sightings also span maritime Flanders, the polders near Doel, and the village of Kleit in Maldegem. A closely related spirit called Ossaert roams the Zeeland region across the Dutch border, and the two are likely branches of the same tradition.

Was Oschaert ever defeated?

A priest at Hamme performed an exorcism on Oschaert and banished it to wander the seashore for ninety-nine years. At Spije, near Mechelen, a small coffin-shaped bridge over a stream is still pointed out as Oschaert’s coffin. Whether the ninety-nine years have already elapsed is a question no one in Hamme seems eager to answer.