This is certainly one of the best meetings I had with a writer. Mary Stewart is a great lady like "Arthurian". She cites her sources says that his book is not a historical essay, finally a little modesty. The "crystal cave" is a book that I recommend to those who are passionate about these legends including that of Merlin. Told in the first person, the story takes you into another world through an efficient style and descriptions, but a few, which can be easily read diagonally. A keypad that simply reads and makes you want to read more. So I'll tackle "The hills thousand caves", the second cycle of this beautiful literary mural.