List of characters in the Camp Half-Blood series
Krios - Krios is the Lord of the South and the Titan of Stars and the Constellations. He is only mentioned in one of Percy's dreams, where he is forced to babysit Atlas. He is dissatisfied with his condition because he only wears ram horns, but Hyperion can blow up into flame. He is also mentioned fleeing when Kronos was defeated. He wears armor that has glowing stars on it. In The Lost Hero, Jason mentions that he defeated Krios with his bare hands.