No more is heard of Perceval except in a short later passage, in which a hermit explains that the grail contains a single mass-wafer that miraculously sustains the Fisher King’s wounded father. The loathly lady announces other quests that the Knights of the Round Table proceed to take up and the remainder of the poem deals with Arthur's nephew and best knight Gawain, who has been challenged to a duel by a knight who claims Gawain had slain his lord. Gawain offers a contrast and complement to Perceval's naiveté as a courtly knight having to function in un-courtly settings. An important episode is Gawain's liberation of a castle whose inhabitants include his long-lost mother and grandmother as well as his sister Clarissant, whose existence was unknown to him. This tale also breaks off unfinished.