The walls became smoother in some areas and sharper in others, showing where different mining techniques were used. Ancient pick marks, chisel cuts, and the occasional rune marked where workers, or perhaps even dwarven machines, had extracted ore.
They began relying on their immortal sense to detect lingering traces of energy. Although most spiritual traces had faded over time due to the intense volcanic fluctuations, a few faint signatures remained.
Lin Mu swept his senses across the passageways and felt delicate ripples of fire elemental energy. Daoist Chu followed up by scanning for metallic energy fluctuations. Together, their senses painted a rough map of where heavier activity had taken place recently.
"Leftward tunnels have faint metal Qi traces," Daoist Chu noted. "Someone passed through here with metallic tools or ingots recently."
Lin Mu nodded. "These should be dwarven paths."
The tunnels grew hotter and more humid the deeper they went.
