Third Scour

According to the followers to Tiam, Arawn ordered serfs to murder non-Arawn believers because he's blood thirsty and craves death.

Arawnites in Collen violently revolted and were slain by a counter army. This in turn caused more to group together and attack. They were also killed.

Because of this, all temples and books dedicated to Arawn were burned and the priests were either beheaded if they renounced their faith or quartered if the didn't. The severed heads are displayed on the Fellgate.

Dante's Theory

After their god was blamed for the serfs' actions, the Arawnites protested and were later killed to silence them. Out raged by this, a group formed and attacked in retaliation. They too were killed. The story was twisted to reflect badly on Arawn and his followers.

According to Larrimore, Cally fought during the Third Scour at around the age of 95.