At first, it was just a flash of lightning. But in the next moment, it suddenly darkened, and the lead layer of the pale purple thunderclouds covered the sky. Streaks of purple lightning flashed in the thunderclouds. They flickered as if a divine dragon was stretching out its claws. The air was full of light purple haloes, dim and mysterious.

Everyone in Oststern saw this scene.

The strange change immediately made everyone look up at the sky with shock, ...