Brian O'Sullivan was born in county Cork, Ireland. On completing a degree at University College Cork, he went on to travel extensively. He is now based in New Zealand with his family but returns to Ireland on a regular basis. Brian writes fiction that incorporates strong elements of Irish culture, language, history and mythology. These include literary short stories (The Irish Muse collection), mystery thrillers (The Beara Trilogy) and contemporary versions of the Fionn mac Cumhaill/ Fenian legends (The Fionn mac Cumhaill Series and the Irish Woman Warrior Series). Brian also edits and writes non-fiction through the 'Celtic Mythology Collection' series published by Irish Imbas Books, Although he writes predominantly for an Irish audience, Brian's unique style and humour has meant that his books have become firm favorites of readers all around the world. The fourth book in the the Fionn mac Cumhaill Series (Fionn: Stranger at Mullán Bán) was released in December 2022. Release of the fifth book is planned for December 2023. A prequel for the Irish Woman Warrior Series (Liath Luachra: The Great Wild) was released on 2 June 2023)