The terrifying eye that could set the entire countryside ablaze
In short: In Irish mythology, Balor was no ordinary king. A leader of the malevolent Fomorians, this giant possessed an eye so destructive that simply uncovering it could wither forests and ignite the landscape. But his most terrifying power was also his greatest vulnerability, destined to be extinguished by his own grandson.
Balor, whose name may derive from the Common Celtic *Boleros, meaning 'the flashing one,' is a central figure in the Mythological Cycle. As the leader of the Fomorian forces, he is often depicted as a formidable giant with a singular, devastating eye. Some accounts describe him as having a single eye in his forehead, while others suggest a more complex anatomy, including a deadly eye at the back of his head or even three eyes in total. This eye was not merely a physical feature but a weapon of mass destruction; one version of his legend describes how removing just seven coverings from his eye caused the landscape to transition from withering bracken to a fully raging inferno.
The mechanism of his destruction is as varied as the manuscripts that record it. Some traditions claim his eye gained its baleful power from the fumes of a magical potion brewed by druids, while others suggest he used a glass to focus its venomous, petrifying beam. The physical burden of his power was immense—it reportedly took the strength of four warriors to lift his heavy eyelid using a specialized ring handle. This eye was often shielded by multiple layers of leather to prevent accidental catastrophe.
Despite his power, Balor was bound by a prophecy: he would be killed by his grandson, Lugh. To prevent this, Balor imprisoned his daughter, Ethnea, in a tower, but the lineage was ultimately fulfilled when Lugh—using a sling-stone or a red spear—pierced the eye. The aftermath of his death left a permanent mark on the Irish landscape, with legends claiming his falling body crushed dozens of soldiers and his blood formed local lakes, such as Lough Nasool.
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- Summary by Intellect · source: Balor
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