The Story of Eithne: The Prophecy That Shaped Irish Mythology

The Legend of Eithne and the Prophecy of the Fall of Balor

Irish mythology contains vibrant tales about gods, heroes, and magic. One such story centres on Balor of the Evil Eye, a terrifying giant who rules over the Fomorians and his daughter, Eithne. Balor fears a prophecy that says his own grandson will kill him. To prevent this, he locks Eithne away in a high tower on a remote island, hoping she can never have a child. However, as is often the case in mythology, fate cannot be outwitted.

Despite Balor’s precautions, Eithne meets a brave warrior named Cian, and together, they become the parents of Lugh, one of the greatest heroes in Irish lore. This tale weaves themes of destiny, courage, and love into a thrilling saga of battles and betrayals. In this blog post, we’ll explore the story of Eithne, Balor, and Lugh and how their intertwined destinies shaped one of Ireland’s most enduring myths.

The Story of Eithne

balor of the evil eye

On the storm-torn coast of Tory Island, an ancient fortress rose from jagged rocks like a forbidding sentinel. Within its stone walls ruled Balor of the Evil Eye, the Fomorians’ most feared and powerful king. Balor stood as tall as two mortal men, and set within his forehead was a single eye said to wither entire armies when its lid was lifted in battle. His subjects bowed before him in trembling awe, for none dared challenge the might of Balor.

Yet Balor feared one thing: a prophecy foretold that his grandson would slay him. Alarmed by this omen, Balor turned to the wise druids who advised him. They confirmed the dire words:

“If ever your daughter bears a child, that child shall raise a weapon against you and you shall be undone.”

Balor resolved to prevent the prophecy from ever coming true. He constructed a high tower on Tory Island, its top shrouded by swirling mists, and within, he imprisoned his only child, Princess Eithne. Her chamber had no doors—only a single narrow window through which the sea wind howled. Balor forbade anyone from entering, trusting that Eithne would never know the company of any man and thus could never bear a child.

Eithne’s Destiny

Balor on Tory Island
Tory Island

Eithne lived alone for years, guarded day and night by Balor’s watchful servants. She heard the call of seabirds each morning and the crash of waves against the cliffs below each evening. Sometimes, she could see sails on the horizon and longed to be free, but she knew the fortress was impregnable.

Yet fate had other plans. Word of the prophecy reached the Tuatha Dé Danann, sworn enemies of the Fomorians. Among these noble folk was a brave warrior named Cian—renowned for his cunning and kindness. A druidess called Birog took pity on Eithne, sensing that the young princess was an innocent pawn in Balor’s ruthless efforts to thwart destiny. With her magic, Birog devised a plan to bring Cian to the tower.

One moonlit night, Birog summoned a gust of strong wind that lifted Cian like a leaf in a storm. Carried aloft by druidic sorcery, he alighted upon the narrow windowsill of Eithne’s tower. Astonished and frightened, Eithne at first recoiled, yet when she gazed into Cian’s eyes, she saw neither threat nor deception—only gentleness and wonder. Cian, too, beheld Eithne’s beauty and felt his heart stir with compassion for this lonely princess.

Destiny was fulfilled during that stolen encounter. The magic wind swept them inside the chamber, and they shared whispered words of comfort and longing. Before the night’s end, Eithne and Cian had forged a bond that no walls could break, thus beginning the chain of events that would seal Balor’s fate.

Lugh, Grandson of Balor

After Balor discovered that his daughter Eithne had borne a son, he vowed to destroy the infant before the prophecy could be fulfilled. Fearing for the baby’s life, the druidess Birog and a handful of loyal Tuatha Dé Danann spirited the newborn Lugh away from Tory Island under cover of night. Confined to her tower, Eithne could do nothing but watch as her child was hurried down the winding steps, cradled carefully against the bitter sea winds. Although her heart broke at the thought of never seeing him again, she knew this was the only hope for his survival—and for the prophecy’s eventual triumph over Balor’s tyranny.

Carried across the tumultuous waters in a small craft guided by Birog’s magic, Lugh arrived on the mainland in the realm of the Tuatha Dé Danann. Tailtiu, a noble queen of the Fir Bolg (in some tales, the sea-god Manannán mac Lir also lends his guardianship), took the boy into her care. She fostered him as though he were her own, protecting him from Balor’s spies and teaching him the first lessons of honour and bravery.

Lugh was a bright and curious child who quickly absorbed every skill or craft. Over time, various masters from among the Tuatha Dé Danann took turns guiding his education. He learned swordsmanship and spear-throwing from the greatest warriors, healing and herb lore from the wisest druids, and poetry and music from the most gifted bards. His inquisitive spirit and determination soon earned him the name Ildánach, meaning “Master of All Arts,” for there seemed no discipline he could not learn.

Each night before he slept, Lugh would stare into the hearth-fire embers, wondering about his mother, who remained a prisoner on Tory Island. Though he was too young to understand the depths of her sacrifice, he sensed the weight of the destiny placed upon his shoulders. His heart grew both in love for the kindly guardians who raised him and in a quiet resolve to see Balor’s dark rule end. With every lesson and every new mastery, he came one step closer to fulfilling that prophecy—and avenging the loneliness forced upon his mother.

About the author
J.J. Sheridan
My Name is JJ Sheridan, born in Cork Ireland but spent most of my childhood in County Tipperary. I've been a Chef for a large number of years and have worked in a number of award winning restaurants. I love using local ingredients whenever possible in my food so that I can showcase the best of Irish. My passion is to share with you the best restaurants across Ireland from a Chefs perspective. For many years restaurants have been at the hands of the "food critic". Most of the time these critics will visit the same old restaurants and heap praise on them. Often forgetting about the smaller restaurants who are paving the way for Irish Cuisine. My Goal is to higlight all restaurants, especially the ones the so called food experts never visit and give you a complete list of the best Irish Restaurants to visit.

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