Ge'els is an lord of Tir ná Lia ruling in name of Eredin. He's one of the 3 generals of the Dearg Ruadhri along with Imlerith and Caranthir. Unlike other elves of his kind he's a diplomat and an artist instead of a barbaric warrior.

His weakness is his righteousness what Avallac'h and Geralt use against Eredin. They show him a terrible truth that Eredin killed his previous king to usurp his place. This makes his sever all ties with Eredin and cease to support him in war with Geralt and his friends. Ge'els advises them to lure Eredin their own world by using the Sunstone on Skellige and then finish him.