The Dragon's Egg
junior priest at the Temple of Tyr in Srilkind
He was killed in the fire that burned down the temple of Tyr, presumably by the Strange Fire Creatures our heroes fought there. According to Father Harald, Finn is also a former acolyte of Gefjon under Aslaug.
Whoever sent the strange fire creatures to attack the temple appears to believe that Finn betrayed something, as the word “BETRAYERS” was written over both his and Koli’s bodies in the temple basement.