Ketaron was one of The First Vassals and husband of Selna, with whom he had a child, Dagis. Ketaron was a farmer who was personally recruited by Malphas to join the journey to Enderal. After he and his wife questioned Malphas' ability to protect them during the journey, the Light-Born destroyed their village, including all villagers and buildings, to prove his power. This event is recalled in Verses XXVIII and XXIX of The Path. This convinced Ketaron to join the journey.
Ketaron died before his son was born, defending his ship and his fellow vassals from The Kraken by leaping into the beast's belly and destroying it from the inside with immense arcane powers granted to him by Malphas. This event is described in Verses XLIX through LI of The Path.