"The High Book of the Grail (known also as Perlesvaus) is one of the most fascinating of medieval Arthurian romances, standing apart from the main tradition represented by the great romance cycles on which Malory based his work." "Written in the first half of the thirteenth century, it represents a totally different view of the legend of the Holy Grail from that found in Wolfram von Eschenbach or the French Quest of the Holy Grail, though all derive from Chretien's Perceval; the unknown author adds a much greater religious emphasis, and a desire to glorify crusading chivalry for the secular adventures of Arthur, Perceval, and Lancelot.".