Thoronor is a Bosmer residing near the Fields of Kummu on the Ascadian Isles on Vvardenfell, Morrowind. He describes himself as a scholar. He was travelling with his friend Edras Oril, but they got separated. That's why he asks the Nerevarine for help.
Thoronor was travelling with Edras Oril for some more protection on the road, but they got separated when Edras, who is a amateur naturalist, decided to investigate strange animal sounds. He asks the Nerevarine to look for him.