Peuchen

A winged serpent appears flying through the darkness, and before it even attacks, it lets out a piercing hiss that freezes the blood of anyone who hears it. Its gaze can paralyze any victim instantly, before it drains all of their blood. For the Mapuche people, only one person in the world had enough power to face it: the machi, the healer-shaman, guardian against the darkest magic that existed.

A winged, flying serpent able to change shape, which attacks animals and people to suck their blood. Its gaze can paralyze the victim, and its sharp whistle precedes the attack. It is associated with malevolent forces and sorcery.

Within the folk and mythological corpus compiled by the Codex Monstrorum, the creature Peuchen occupies a distinctive role in the symbolic imagination of its culture of origin. Its mythos articulates primal human anxieties, the mystery of untamed wilderness, and social norms preserved through the lens of bestiary literature.

In the Mapuche worldview, the peuchen is a malevolent creature linked to the kalku, the sorcerer who practices black magic. A shape-shifting vampire, it can take various forms (serpent, bat, others), and its attack drains livestock of blood, anticipating themes that modern folklore would associate with the chupacabra. Only the machi (Mapuche shaman-healer) could fight it. Codex distinguishes the being of the Mapuche worldview, its link to sorcery, and the later folkloric and cryptozoological reception.

According to tradition, the peuchen paralyzes the victim with its gaze before sucking its blood; its sharp whistle is an omen of death. Being a shape-shifter linked to sorcery, it is hard to fight: only the machi, with her power, could reveal and defeat the creature, restoring health to the community.

First appearance and primary records: A being of the Mapuche folklore of Chile and Argentina, attested in oral tradition and ethnographic records on the Mapuche worldview; linked to beliefs about the kalku (sorcerer) and shape-shifting animals.

Oral transmissions and preserved manuscripts indicate that legends surrounding Peuchen underwent substantive evolution over successive centuries. From archaic oral traditions to classical and medieval written records, each period reframed the creature according to its own ethical and cosmological paradigms.

The morphology is unstable, proper to a shape-shifter: the most associated form is the winged, flying serpent, but it can become a bat or other animals. The paralyzing gaze and the sharp whistle are as essential as the form; the sucked blood is the mark of its attack.

The peuchen organizes the fear of sorcery, disease, and livestock death in the Mapuche worldview. Its function is to give form to the threat of the kalku and supernatural evil, and to justify the role of the machi as defender of the community against malevolent forces.

Against the modern chupacabra, with which it shares the draining of livestock, the peuchen is far older and anchored in the Mapuche worldview and in sorcery. It resonates with shape-shifting vampires of various cultures, distinguished by its paralyzing gaze and its link to the kalku.

From Mapuche oral tradition and worldview to ethnographic records and Chilean and Argentine folklore, and onward to literature and regional cryptozoology, the peuchen established itself as one of the most feared beings of the southern South American imagination, a precursor of modern vampiric themes.