It was agreed, however, that the splendours of Constantinople would provide a more fitting background to their nuptials, and accordingly all set sail for the Golden Horn, having first been honoured by a visit from Amadis of Gaul in person, who, notwithstanding his patriarchal years, still continued to prove the delights of errantry. He was accompanied by Amadis of Greece, who, though almost as venerable as his great-grandfather, could yet break a lance with any like-minded champion. They had not proceeded far from the shores of the island when they were beset by a furious tempest, in which Agesilan and Diana were separated from the rest of their kindred and cast upon a desert rock, where they would have perished had not an accommodating knight, mounted upon a hippogriff, who chanced to be flying overhead, picked them up and carried them to his home in the Canary Islands. But their preserver's disinterestedness vanished on beholding the beauty of Diana, so, when Agesilan was off his guard, he bore her to a distant part of the Green Island, as his demesne was called. His amorous dream was, however, destined to be rudely broken in upon, for at that moment a party of corsairs landed, and seeing in Diana a prize who would bring them a large sum in the nearest slave-market, promptly bore her off. Agesilan, on being unable to find Diana, suspected treachery, so mounted the hippogriff and set out in search of her. Having in vain surveyed the island from the back of the winged monster, in his despair he took to flying at large. Whether from 'engine trouble' or causes even more obscure, he was forced to alight in the country of the Garamantes, the king of which had been struck blind as a punishment for his overweening pride. Moreover, the unfortunate monarch was doomed to have the food prepared for him devoured daily by a hideous dragon. From this monster Agesilan delivered him. The whole incident is an unblushing imitation of a passage in Orlando Furioso (can. xxxiii, st. 102 ff.), in which Senapus, King of Ethiopia, is visited by a like misfortune, and has his food daily destroyed by harpies until relieved by Astolpho, who descends in his dominions on a winged steed. But the author of Agesilan is no whit more guilty than Ariosto himself, for both incidents are derived originally from the story of Phineus and the harpies in the Argonautica of Apollonius Rhodius.