Conor Mac Nir is the son of the king of the Tigh clan. Despite living in a clan in which almost all men are expected to be warriors, his skills lie more in the directions of music. When he is sent to Lisdara as a hostage to secure the treaty between Tigh and Faolán, Conor hears that his father has been killed and his uncle, Fergus, and a Red Druid, Diarmuid, have taken over the throne. Their intentions are immediately recognized when they invade Sliebhan: Fergus, or the druid, wants to become High King of Seare. Conor decides he must train with Fíréin Brotherhood, where he spends the next three years of his life. When he leaves, he must risk his life for the sake of the Kingdom.

A very interesting story that satisfies your sense of adventure, Oath of the Brotherhood shows that you have to have faith in God throughout your own life adventures, whether big or small. It is a well written book and is rated young adult due to some gruesome adjectives during some of the fight scenes. It is definitely a book that I could read over, and over.