In the course of his voyage to Sicily, Amadis chanced to visit an island, where he found the Emperor of Trebizond, Lisuarte, Perion, and Gradaffile in a state of enchanted slumber. As we have seen, they had been spirited away by the emissaries of paganism. It chanced that at this time Amadis of Gaul, who was evidently not yet too old for adventurous pursuits, encountered the Queen of Saba, who was everywhere searching for a champion to defend her against her husband's false charges of conjugal infidelity. Amadis espoused her quarrel, and accompanied her to Saba, where he did battle with and overcame her accuser. He also succeeded in establishing her innocence, and that of his namesake, Amadis of Greece, to the satisfaction of the King her husband. After he had freed his ancestors from their charmed sleep, Amadis of Greece betook himself to Sicily. He had not been long in the island when he heard a knight reciting amorous verses in the vicinity of the palace. At once his jealous heart leapt to the conclusion that the singer was chanting the praise of his princess. Almost crazed by his suspicions, he searched everywhere for his supposed rival, but without success, dogging his footsteps, but always failing to come up with him. During this chase he met with many adventures. But at last he seems to have convinced himself that his suspicions were groundless and that the singer he had heard had had no designs upon the heart of his inamorata. Whilst these events were passing, Lisuarte, the father of our hero, had returned to Trebizond, and had formally requested the hand of Onoloria. But Zairo, Soldan of Babylon, had seen this princess in a dream, and, accompanied by his sister Abra, had arrived at Trebizond to demand her in marriage. The Emperor was quite prepared to grant his suit, but not so Lisuarte, who had prior claims to the lady, and his opposition so enraged the Soldan that he resorted to warlike measures and set siege to "many-towered Trebizond." After the siege had progressed for some time champions were selected from either army to decide the pretensions of the rival parties. But the Soldan's paladins were defeated by Gradaffile, daughter of the King of the Giant's Isle, who disguised herself as a knight, and whose Amazonian fury the unfortunate Babylonians could scarcely be expected to confront with any chance of success. The Soldan, however, after the manner of the baffled in romance, broke the rules of the tourney and carried off Onoloria by a stratagem. As his fleet sailed with all speed from Trebizond, it encountered that of Amadis of Gaul, who was hastening to the relief of that city, and had evidently not been retarded in his passage of the Dardanelles by any considerations of international law. In the circumstances it is scarcely necessary to chronicle the Soldan's overthrow, or dwell upon his untimely fate.