Thereafter follow many adventures and wanderings, in which Joseph and his son Josephé, who becomes the first Christian bishop, achieve many conversions, notably that of King Evalach who takes the baptismal name of Mordrain. With his brother-in-law Nascien (known as Seraphe until his conversion), Mordrain undergoes many trials in battle, at sea, and on islands, encountering enchanted boats manned in turn by Christ and the devil.