Legends of Charlemagne by Thomas Bulfinch

After the interruption of the combat with Rinaldo, as we have related, Rogero was perplexed with doubts what course to take. The terms of the treaty required him to abandon Agramant, who had broken it, and to transfer his allegiance to Charlemagne; and his love for Bradamante called him in the same direction; but unwillingness to desert his prince and leader in the hour of distress forbade this course. Embarking, therefore, for Africa, he took his way to rejoin the Saracen army; but was arrested midway by a storm which drove the vessel on a rock. The crew took to their boat, but that was quickly swamped in the waves, and Rogero with the rest were compelled to swim for their lives. Then while buffeting the waves Rogero bethought him of his sin in so long delaying his Christian profession, and vowed in his heart that, if he should live to reach the land, he would no longer delay to be baptized. His vows were heard and answered; he succeeded in reaching the shore, and was aided and relieved on landing by a pious hermit, whose cell overlooked the sea. From him he received baptism, having first passed some days with him, partaking his humble fare, and receiving instruction in the doctrines of the Christian faith.

While these things were going on, Rinaldo, who had set out on his way to seek Gradasso and recover Bayard from him, hearing on his way of the great things which were doing in Africa, repaired thither to bear his part in them. He arrived too late to do more than join his friends in lamenting the loss of Florismart, and to rejoice with them in their victory over the Pagan knights. On the death of their king the Africans gave up the contest, Biserta submitted, and the Christian knights had only to dismiss their forces, and return home. Astolpho took leave of his Abyssinian army, and sent them back laden with spoil to their own country, not forgetting to entrust to them the bag which held the winds, by means of which they were enabled to cross the sandy desert again without danger, and did not untie it till they reached their own country.