This biography of Conor O"Brien, using his own drawings, writings, and letters, records the eventful life of a sailor and mountaineer, fiction and travel writer, designer of boats and buildings, Irish nationalist and defender of Britain. He made history by sailing around the world in a small yacht in 1925, climbed mountains with Mallory and Young, joined the Irish Volunteers and shipped guns with Erskine Childers, and wrote a best selling book.