Although both had sworn vengeance, they decide the service Tristram has just rendered them and their country more than counterbalances the rest, and therefore let him go unscathed. Fully restored to health, Tristram proves the butler had no right to Iseult's hand, and, instead of enforcing his own claim, makes King Mark's proposals known. Either because such an alliance flatters their pride or because they dare not refuse, Iseult's parents accept in their daughter's name and prepare everything for her speedy departure. The queen, wishing to save her daughter from the curse of a loveless marriage, next brews a love-potion which she bids Brengwain--her daughter's maid and companion--administer to King Mark and Iseult on their wedding night. During the trip across the Irish Channel, Tristram entertains Princess Iseult with songs and tales, until he becomes so thirsty that he begs for a drink. By mistake the love-potion is brought, and, as Iseult graciously dips her lips in the cup before handing it to her entertainer, it comes to pass both partake of the magic draught, and thus become victims of a passion which naught can cure. Still, as their intentions remain perfectly honorable, they continue the journey to Cornwall, and, in spite of all he suffers, Tristram delivers the reluctant bride into his uncle's hands. Some legends claim that Iseult made her maid Brengwain take her place by the king's side on their wedding night, and that, although the Irish princess dwelt in the palace at Cornwall, she never proved untrue to her lover Tristram. The romances now give us stolen interviews, temporary elopements, and hair-breadth escapes from all manner of dangers. Once, for instance, Iseult is summoned by her husband to appear before the judges and clear herself from all suspicion of infidelity by taking a public oath in their presence. By Iseult's directions, Tristram, disguised as a mendicant, carries her ashore from the boat, begging for a kiss as reward. This enables the queen to swear truthfully that she has never been embraced by any man save King Mark and the mendicant who carried her ashore! Tristram--like Launcelot--deeply feels the baseness of his conduct toward his uncle and often tries to tear himself away, but the spell of the magic potion is too powerful to break. Once remorse and shame actually drive him mad, and he roams around the country performing all manner of crazy deeds.