NIGHTBRINGER | The Arthurian Encyclopedia

Tugan


A castle in King Urien’s Garloth.

Morgan le Fay built a depository in Tugan, in which she hid a magic book given to her by Merlin. The book prophesied the future, telling of the deaths of Arthur and Gawain, but no one could read the book without perishing.


Source
Post-Vulgate Suite du Merlin | 1230-1240