All present were now served with the food they most desired, which they ate in silence, and then the knights marched out of the hall, gazing reproachfully at Parzival, who silently wondered what all this might mean. His hunger sated, Parzival was conducted to luxurious sleeping apartments, but, when he was ready to leave on the morrow, all the castle seemed deserted, and it was only when he had crossed the drawbridge and it had been raised behind him, that a harsh voice was heard vehemently cursing him. Shortly after, on learning that a sympathetic inquiry would have dispelled the gloom in the palace, he had just left, Parzival attempted to return, but the mysterious castle was no longer to be found. Such was our hero's remorse for his sin of omission that he continued the quest for years, doing meanwhile all manner of noble and heroic deeds. In reward, he was knighted by Arthur himself, and bidden by Merlin occupy "the Siege Perilous" where his name suddenly appeared in letters of gold. Our version of the story explains that, just as he was about to sit down in the Siege Perilous, the witch Kundrie arrived, and hotly denounced him as an unfeeling wretch, a sufficient reminder to make Parzival immediately renew his quest. Adequate penance having been done at last, and the young knight having stood every test without losing his purity, Parzival was finally allowed to atone for his unconscious fault. Once more he arrived at the castle, once more entered the banquet hall, and once more beheld the mystic procession. Strengthened by silent prayer, Parzival then asked the momentous question; whereupon Amfortas' wound was instantly healed, the aged Titurel released from the pain of living, Kundrie baptized, and Parzival unanimously hailed as future guardian of the Grail, an office he humbly yet proudly assumed. Another legend claims that his son Lohengrin, ordered by the Holy Grail to go and defend Elsa of Brabant, received from his father a magic horn, by means of which he was to announce his safe arrival at his destination, and to summon help whenever he wished to return. Instead of riding a charger, Lohengrin was conveyed in a swan-drawn skiff to Brabant, where he found Elsa praying for a champion to defend her against Frederick of Telramund's accusation of having slain her little brother, who had mysteriously disappeared. Lohengrin, having proved the falsity of the charge by defeating the accuser in a judicial duel, married Elsa, warning her she must never seek to discover his name or origin, under penalty of seeing him depart as suddenly as he had arrived. The machinations of Frederick of Telramund, and of his artful wife, finally drove Elsa to propound the fatal question, and, as soon as Lohengrin has sorrowfully answered it, the swan appeared and bore him away! But, as Lohengrin departed, Elsa's brother reappeared to serve as her protector.[32]