Overview
Thaddeus is a trusted envoy and commander for Jeremiah. At Rimvold, he is Jeremiah's protector, delivers Jeremiah's demand for Skarnheim to join the attack on Uriandel, and later leads part of Jeremiah's skyship formation against Uriandel's forces at Crosford. He fights for Jeremiah at Crosford during the Fall of Malverand.
Rimvold Mission
Thaddeus arrives from Jeremiah's skyship in robes of cosmic blue and brown, leading a delegation to meet Thalion during Sigvariel's absence. He announces that Jeremiah will move against Uriandel with Jazarel's best forces and expects Skarnheim's army to join the attack. In exchange, Jeremiah intends to claim western Skarnheim and allow Skarnheim to reclaim land Uriandel took.
During the meeting, Thaddeus also recounts Uriandel once sending an envoy with a man calling himself the Dark Lord's lieutenant, who spoke of Valrindor's fall and warned that the enemy could already be inside Jazarel. Thaddeus dismisses the warning as the words of a madman.
Crosford Battle
After the Rimvold meeting, Thaddeus returns to the skyship formation. Thalion and Ignatius later catch up with Jeremiah's fleet and follow in line with Thaddeus, who leads an organized fleet. At the Crosford plains, Thaddeus's ship remains active in the air battle, fires a compressed blast of air at Uriandel's fleet, and prepares to land with Jeremiah's fleet as the ground battle escalates. Thaddeus is killed in the battle between Jeremiah and Uriandel.