A merfolk not native to Skyrilon's seas. He heard of another species of merfolk different than his own, and ended up swimming into the stream leading into the Skyrilon castle. He decided to compete in the Arena to show what merfolk are capable of in battle.
Thaylen will appear in Skyrilon Knights: Arena. He is not canon to the game's story.
Thaylen is an original character designed by one of the backers of the game's fundraising campaign.