At Fenris, Eralas lost his bodyguard to slaughter and declared Stromgarde's neutrality. In the meanwhile, Arlith met with Tribune Garrius Septim. Though Eralas was to resign as king and let Dorath take the reins, Arlith saw his services rewarded by being raised to the rank of Tribune.
He served under Garrius Septim in the invasion of Hesperia and helped take Cattana and Tornio. He was captured and taken to Seashire, but was freed by the Companions. There it was discovered that he was at the Perfectibilists summit as an observer. Afterwards, he returned to the Stromgarde front to continue to fight in defense of his country.