Who is King Vandemere from The Floating Island and what is their importance?

King Vandemere is the king of a large island, Serendair. a large island. He is described as a kind, caring king, who inherited the throne far too early as a result of his father's untimely death. King Vandemere is worried about the magic in his lands disappearing, and he has been searching for someone to wander the world, gathering information about all magic, so it can be preserved and maintained. When he finds Ven in his dungeon, he uses his logical deduction abilities to determine that Ven is not guilty of the crimes he is accused of. As a result, he sets Ven free, but also asks him to be a reporter for the kingdom.