- A Welsh Myth Concordance by Mike Nichols Books are words of wisdom spoken by the dead to the living. --Welsh proverb The following concordance is based on the four branches of the Welsh Mabinogi , as retold in the four books by Evangeline Walton: Prince of Annwn , The Children of Llyr , The Song of Rhiannon , and The Island of the Mighty . Unfortunately, the Ballantine editions of these ...www.summerlands.com/crossroads/library/A_Welsh_Myth_Concordance.htm