Who Are Paraguay's Seven Monster Siblings?

Introduction

The story of Tau and Kerana’s seven children is one of the best-known myth cycles in Paraguay. Rather than a simple collection of monsters, the tale creates a symbolic map of the dangers, mysteries, desires and fears associated with the natural world. In Guaraní tradition, the evil spirit Tau abducted or seduced the beautiful Kerana, and their union produced seven offspring who were cursed before birth. Each child became linked to a different realm: caves, wetlands, open country, childhood, sexuality, mountains, or death. Together they form a connected family of legendary beings that still appear in Paraguayan storytelling, education, art, tourism, and popular culture. Versions vary between regions and storytellers, but the seven siblings remain among the most recognisable figures in Paraguay’s legendary landscape.[Wikipedia]WikipediaTau (mythologyTau (mythology

The Curse of Tau and Kerana

The cycle begins with Kerana, a celebrated beauty and the daughter of Marangatu, one of the descendants of humanity’s first ancestors in Guaraní tradition. Tau, often described as a spirit associated with evil or destructive forces, became obsessed with her. Different tellings describe a courtship, an abduction, or a forced captivity. In many versions, a struggle between Tau and the benevolent spirit Angatupyry lasted seven days and seven nights before Tau carried Kerana away.[Wikipedia]WikipediaTau (mythologyTau (mythology

Because of Tau’s actions, the celestial being Arasy (sometimes written Araci) cursed the couple’s future children. The result was not one monster but seven. The number seven became central to the story, and later retellings often connect the children with human suffering, moral dangers, or forces that disturb social order.[simonsparaguay.com]simonsparaguay.comseven monsters of guarani mythologyTeju-Jagua was the first of the children of Tau and Kerana. · Mbio-Tui. The second born child…Read more…

The curse explains why the siblings are related yet so different. Each represents a distinct domain of life and nature, making the cycle feel less like a single legend and more like an interconnected catalogue of supernatural powers.

The Seven Beings and Their Domains

Teju Jagua: Lord of Caverns and Hidden Riches

The first child, Teju Jagua, is usually described as a giant lizard with one or seven dog heads. Despite his frightening appearance, he is often portrayed as surprisingly docile. His realm is the underground world of caves, buried treasures and hidden fruits. Some traditions make him a guardian of secret riches rather than a destroyer.[Wikipedia]WikipediaTeju JaguaTeju Jagua

Teju Jagua shows an important feature of Guaraní mythology: terrifying appearance does not always mean evil behaviour. He is monstrous, but not necessarily malicious.

Mbói Tu’ĩ: Guardian of Wetlands

The second sibling, Mbói Tu’ĩ, combines the body of a giant serpent with the head or beak of a parrot. He is associated with swamps, rivers, marshes and aquatic creatures. Stories place him in dark, damp places where his frightening cries spread fear. At the same time, he functions as a protector of wetlands and the animals that live there.[simonsparaguay.com]simonsparaguay.comseven monsters of guarani mythologyTeju-Jagua was the first of the children of Tau and Kerana. · Mbio-Tui. The second born child…Read more…

His role reflects the importance of waterways in Paraguay, where rivers and marshlands have long shaped settlement, travel and local belief.

Moñai: Master of Open Country and Temptation

The third child, Moñai, is commonly depicted as a horned serpent. He is linked with fields, open landscapes and estuaries. In many versions he also encourages theft, greed or deception among humans. Unlike most of his brothers, Moñai has a dramatic narrative of defeat. A woman named Porasy sacrifices herself to destroy him, becoming one of the heroic figures of Guaraní legend.[Simons Paraguay]simonsparaguay.comseven monsters of guarani mythologyTeju-Jagua was the first of the children of Tau and Kerana. · Mbio-Tui. The second born child…Read more…

This episode turns the monster cycle into a moral story. Evil is not merely endured; it can be resisted through courage and sacrifice.

Jasy Jatere: The Child of the Siesta

The fourth sibling is often the most famous in modern Paraguay. Unlike his brothers, Jasy Jatere usually appears as a beautiful child or small fair-haired figure rather than a monster. He wanders during the hottest hours of the day and is closely associated with the siesta. Parents traditionally warned children not to roam outdoors at midday because Jasy Jatere might lure them away.[wikipedia.org]WikipediaGuarani mythologyGuarani mythology

His stories blur the line between fairy, trickster and kidnapper. He demonstrates how the seven siblings are not all creatures of brute force; some embody social warnings directed at children.

Kurupi: The Power of Desire

The fifth child, Kurupi, is the figure most closely associated with sexuality and fertility. Stories portray him as a dangerous being whose exaggerated sexual powers make him a source of fear, temptation and explanation for unexpected pregnancies. His legend has often been used to discuss sexual behaviour indirectly in rural communities.[Wikipedia]WikipediaGuarani mythologyGuarani mythology

For folklorists, Kurupi illustrates how supernatural stories can function as social tools. He embodies anxieties surrounding desire, family honour and reproduction.

Ao Ao: Terror of the Hills

The sixth sibling, Ao Ao, is usually imagined as a savage, animal-like creature that roams hills and remote uplands. Descriptions vary, but many portray it as resembling a monstrous sheep, peccary, or wild beast that hunts humans. It is associated with isolated landscapes and the fear of becoming lost far from community protection.[Wikipedia]WikipediaGuarani mythologyGuarani mythology

Ao Ao represents the dangers of wilderness in a particularly direct way. Unlike some of the other siblings, it is remembered chiefly as a predator.

Luison: Lord of Death

The seventh and final child is Luison, perhaps the darkest figure in the cycle. Usually depicted as a dog-like or werewolf-like being, he is associated with death, decay and graveyards. His legend spread beyond Paraguay into neighbouring countries and became linked to beliefs about the seventh son in a family.[Wikipedia]WikipediaOpen source on wikipedia.org.

Because he stands at the end of the birth order and governs death, Luison often appears as the culmination of the curse placed upon Tau and Kerana’s descendants.

Why the Cycle Is More Than a Monster List

Readers often encounter the seven siblings as a catalogue of strange creatures, but the tradition works on several levels at once.

First, the siblings divide the world into symbolic territories. Caverns belong to Teju Jagua, wetlands to Mbói Tu’ĩ, open country to Moñai, midday hours to Jasy Jatere, sexuality to Kurupi, hills to Ao Ao, and death to Luison. Together they cover many of the places, experiences and dangers that mattered in everyday life.[Wikipedia]WikipediaGuarani mythologyGuarani mythology

Second, the cycle preserves practical warnings. Children are told not to wander at siesta time; people are cautioned about temptation, greed, isolation and reckless behaviour. The monsters help transform social lessons into memorable stories.[Facebook]facebook.comParaguayan Mythology (1Jasy Jatere is one of the seven…Jasy Jatere is one of the seven legendary monsters in Guaraní mythology - the cursed children of Tau a…

Third, the siblings demonstrate how Guaraní mythology blends fear with protection. Several of the beings are guardians as well as threats. Mbói Tu’ĩ protects aquatic life, while Teju Jagua watches over caves and hidden treasures. This ambiguity is typical of many Indigenous American mythologies, where supernatural beings are rarely divided into purely good or purely evil categories.[enchanted-chronicles.com]enchanted-chronicles.comEnchanted Chronicles StudioMboi Tu'i: The Guarani Serpent-Bird Guardian of Nature (2026)In Guarani mythology, Mboi Tu'i is one of the sev…

How the Seven Monsters Changed Over Time

The seven siblings survive today because they adapted to changing cultural conditions. The original stories emerged within Guaraní oral traditions, where details naturally varied from community to community. Later writers such as Narciso Colmán helped preserve and popularise the cycle in written form, while twentieth-century folklorists documented different versions across Paraguay and neighbouring regions.[Wikipedia]WikipediaTau (mythologyTau (mythology

Modern retellings often present the siblings as a fixed set of national monsters, but older traditions were less rigid. Descriptions, powers and relationships could differ significantly depending on where a story was told. Scholars of Guaraní mythology note that oral traditions continually evolve, which helps explain why the same figure may appear as a feared monster in one account and a protective spirit in another.[Wikipedia]WikipediaGuarani mythologyGuarani mythology

Today the seven children of Tau and Kerana appear in school materials, festivals, artwork, museum displays, comics and online media. Their continuing popularity shows that they have become more than folklore characters. They serve as cultural symbols through which Paraguay remembers Indigenous traditions, interprets the landscape and tells stories about human behaviour, nature and the unseen forces believed to inhabit the world.[The Asunción Times]asunciontimes.comThe Asunción TimesSeven Monstrous Brothers: Exploring The Heart Of Guaraní…3 Aug 2025 — Among the best‑known figures in Guaraní mythol…

Amazon book picks

Further Reading

Books and field guides related to Who Are Paraguay's Seven Monster Siblings?. Use these as the next step if you want deeper reading beyond the article.

Book

The Book of Imaginary Beings

By Jorge Luis Borges, Margarita Guerrero

The seven siblings fit naturally into legendary-creature traditions.

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Book

Latin American Folktales

By John Bierhorst

Supports understanding of Guaraní myth cycles.

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Book

The Mythology Book

By DK

Explains recurring mythic themes and archetypes.

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Book

American Indian Myths and Legends

By Richard Erdoes, Alfonso Ortiz

Offers comparative indigenous monster traditions.

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Browse more on Amazon:The Book of Imaginary BeingsLatin American FolktalesThe Mythology Book

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Endnotes

1. Source: Wikipedia
Title: Tau (mythology)
Link:https://en.wikipedia.org/wiki/Tau_%28mythology%29

2. Source: Wikipedia
Title: Guarani mythology
Link:https://en.wikipedia.org/wiki/Guarani_mythology

3. Source: Wikipedia
Title: Teju Jagua
Link:https://en.wikipedia.org/wiki/Teju_Jagua

4. Source: enchanted-chronicles.com
Link:https://www.enchanted-chronicles.com/lp-mboi-tui-guarani-serpent-bird-2026/

5. Source: facebook.com
Title: Paraguayan Mythology (1)
Link:https://www.facebook.com/para.latierra/posts/paraguayan-mythology-1jasy-jatere-is-one-of-the-seven-legendary-monsters-in-guar/10158563613144418/

6. Source: Wikipedia
Link:https://en.wikipedia.org/wiki/Luison

7. Source: facebook.com
Link:https://www.facebook.com/groups/1627487000825176/posts/2119875941586277/

8. Source: facebook.com
Link:https://www.facebook.com/yunaxdilus/posts/tau-and-kerana-are-a-cursed-couple-from-guaran%C3%AD-mythology-they-had-7-children-an/1023129146482641/

9. Source: facebook.com
Link:https://www.facebook.com/CCRCabildo/posts/el-agua-y-los-mitos-en-la-m%C3%BAsicala-osic-en-el-teatro-municipalcon-obras-de-telem/6467907586583067/

10. Source: youtube.com
Title: GUARANI MYTHOLOGY: The Curse of Tau and Keraná and Their Demonic Children | DHM
Link:https://www.youtube.com/watch?v=uCkn8we8hWc

11. Source: youtube.com
Title: Jasy Jatere
Link:https://www.youtube.com/watch?v=_4FRp7yO3wo

12. Source: youtube.com
Title: Mbói Tu’ĩ
Link:https://www.youtube.com/watch?v=qnTSlEGdwKA

13. Source: youtube.com
Link:https://www.youtube.com/watch?v=sJ_GNu-7vzc

14. Source: asunciontimes.com
Link:https://asunciontimes.com/culture/paraguayan-history/seven-monstrous-brothers-exploring-the-heart-of-guarani-mythology/

15. Source: simonsparaguay.com
Title: seven monsters of guarani mythology
Link:https://simonsparaguay.com/seven-monsters-of-guarani-mythology/

16. Source: asunciontimes.com
Title: the curse of tau and kerana the genesis of the guarani monsters
Link:https://asunciontimes.com/culture/paraguayan-history/the-curse-of-tau-and-kerana-the-genesis-of-the-guarani-monsters/

17. Source: mythus.fandom.com
Link:https://mythus.fandom.com/wiki/Kerana

Additional References

18. Source: instagram.com
Link:https://www.instagram.com/p/DV8PEp1DCKz/

19. Source: dreadcentral.com
Link:https://www.dreadcentral.com/editorials/481840/lycanthropy-long-members-paraguayan-mythology-is-full-of-great-game-ideas-2/

20. Source: scribd.com
Link:https://www.scribd.com/document/969554230/THE-7-MYTHS-OF-PARAGUAY

21. Source: discover.hubpages.com
Link:https://discover.hubpages.com/education/GuaraniMythology

22. Source: loot.co.za
Title: Monai, Teju Jagua, Caipora, Mboi Tu’, Abaangui, Guaraci.Read more
Link:https://www.loot.co.za/product/guarani-mythology/mgkw-1332-g410?srsltid=AfmBOor_xk8R6MUnx7BoIQ0F8B3rmHLyKotJKjh7dd3Ud_OC4HcjE8D6

23. Source: scribd.com
Link:https://www.scribd.com/document/922638533/Guarani-Myth-of-Creation

24. Source: ancient-origins.net
Title: gods creation and legendary beasts guarani 002937
Link:https://www.ancient-origins.net/myths-legends-americas/gods-creation-and-legendary-beasts-guarani-002937

25. Source: mythus.fandom.com
Link:https://mythus.fandom.com/wiki/Jaci_Jater%C3%AA

26. Source: youtube.com
Title: GUARANI MYTHOLOGY: The Curse of Tau and Kerana and Their Demonic Children
Link:https://www.youtube.com/watch?v=oCqkfdasiZk

27. Source: caiosales.artstation.com
Title: z AG6k D
Link:https://caiosales.artstation.com/projects/zAG6kD