Ovon was always calm and naive. He was a pacifist and never acted to harm someone. Ovon tended to be enigmatic and spoke in riddles.
In 1491 DR, he met and befriended Thylius Caramitru, who'd visited the Monastery. Thylius invited him to his house in Mulmaster and Ovon accepted. However, once in Mulmaster, Thylius enslaved Ovon and forced him to teach him the secret of Yellow Breath. He remained a prisoner of Thylius in the Yellow Breath Chapter House until an adventuring party hired to find missing young nobles freed him. Secretly he was a member of the Cult of the Howling Hatred