Lumian did not directly teleport behind Albus Medici, nor did he approach the fragmented corpse of the monster Guei. Instead, his figure quickly materialized at the edge of the peak area.
Earlier, while observing the battle from the mountain's base, he had already stopped the knowledge recitation from the brass talisman made by Archbishop Heraberg and removed the corresponding earplugs, placing them in the Traveler's Bag. This was out of concern that the upcoming intense battle might cause devastating damage to them.
Similarly, he wore the Mirror Cufflink on his cuff, preparing to use it.
As soon as Lumian appeared at the mountain peak, he saw the pus flowing from Guei's corpse fragments seep into the bodies and bones forming the ground, igniting nearly invisible and colorless flames.
Those flames instantly engulfed Guei's dismembered body, burning it to ashes, giving no chance for it to writhe and grow.