A very powerful human from another world, with powers similar to Kuranes and Sabio.
When the heroes asked Sabio to describe Renton, all he would say was that Renton is younger than he is, red hair and didn’t have a beard last time he saw him.
Sabio told the heroes that they could find Renton in Oriab after they had killed Atlach-Nacha for him. Sabio wouldn’t help the heroes with the problems the world was facing, and said that of the people with powers like him the only one he thought might help them was Renton. When the heroes asked what they could say to Renton to make him help them Sabio replied: "Tell him: Choose Life! "