Fiachra was born in a small tuath on one of the islands of the Eoganacht Arann, off the western coast of Eirinn. His father, Donal, was a fisherman, but Fiachra showed little interest in the sea, preferring to spend his days with the poet and historian of the village, learning the tales of the gods and the names of his ancestors back to their coming to Eirinn from what later became the Roman province of Hispania. He also helped the few farmers of the tuath till the rocky soil of the island, and haul seaweed from the shore to fertilize the soil.

One day, the followers of the accursed Padraig arrived on the island to proselytize for their dead god. The people of the tuath were told that if they did not convert to this strange new faith, and forswear their gods, their homes would be burnt, and they would be sent to the mainland to become mug, or slaves. The clansmen knew that the Ri of Connachta had already converted to this new faith, so they did what they priests told them to do. They toppled the standing stones where the tuath had worshipped the gods from time immemorial, and built a “church” on the site. The tuath was made to give a tenth of all its produce and fisheries to the lazy priest who did no work other than to hear the clansmen tell him their “sins” and beg forgiveness of the dead god.

Fiachra bided his time, but he swore that he would never give faith to the false god of the Christians. The priest taught Fiachra from his Latin “books.” Fiachra learned to read and write, but vowed to some day use this knowledge to preserve the ancient lore of the Gael.

A few years later, on the sacred night of Samhain, when the priest told the clansmen to hide in their homes lest the “devil” take their souls, he set fire to the church of the Christians, and it burned to the ground. But he was caught by the accursed priest, who ordered the clansmen to tie him hand and foot and set him adrift in a curragh. After drifting for many days and nights, and nearly dying of thirst, he was luckily rescued by Eberwulf, a Saxon who had joined with the Tuatha de Bhriain some years back, and was on a journey to bring his bride back to Eirinn from Saxony.

The Tuatha de Bhriain, who had also sworn never to abandon their ancient allegiance to the great god Dagda, took Fiachra in as a deor fuidir. Fiachra has spent the years since then recording the stories and legends of the Tuatha de Bhiain, so they will never be forgotten, even when the Christians have destroyed all that is left of the old lore of the Gael.