Ye Liuyun sneered inwardly as he secretly observed King Xifeng's act from behind.
Qu Jing became increasingly convinced that Ye Liuyun was right.
But he was also fascinated about the conditions down within the mineral vein.
The ground got increasingly unstable, with numerous fractures and occasional flames shooting out from the crevices.
They would also encounter soldiers pressuring a group of miners to dig out some blazing boulders on the spot from time to time. It was most likely the rocks thrown out during the eruption.
King Xifeng proceeded to take them further until they reached a ring-like Thousand Burial Mountain, at which point King Xifeng came to a halt.
"That's the mineral vein, which grows alongside the devil crystal mineral vein," he remarked, pointing to the mountains before him. "Devil crystal is useless; all we need is the fire crystal."