The Saecsen invaders dominate Thule, and it is something that Neckneck Tharug cannot bear and against which he has been fighting all along. In a fit of rage she invokes the gods and asks for their help. Under their protection, he ends up forging the Harald sword, which ends up leading him into a direct confrontation with the Saecsen leader. During a hard battle between the Saecsen warriors and the Vikings, and under the gaze of the two armies, he approached the leader of the invaders and killed him with one blow. From then on, a legend was born that would last for hundreds of years.