Who is Xenos from Heir Apparent and what is their importance?

Xenos dresses in a monk style brown robe with the hood pulled up. He has hairy, pointed ears, and he carries a pocketful of live centipedes for snacking. Xenos' body appears to be as hairy as his ears. When he upsets Orielle with one of his comments, she magically removes his ear and lays it on the table. It is later put back on, but upside down.

Xenos made the barbarian's crown, which was unfairly won by King Cynric and later given to the dragon who ravaged the area. He also admits that the crown he made for King Brecc the Slayer is actually a Midas crown, and that his father has a magic hat that allows the wearer to slip between moments in time for a short time only.