Seth Skyson is a male Chrelytian who was a member of The Ones. He and Jo Synesthia tried to defeat Haladna Thanda with their friends, but were turned to stone, with their friends horrified. Haladna Thanda was forced to remain forever on the planet which she destroyed. He is actually still alive, but no one has ever returned to Chrelytium in an attemt to save him.