Unexpected Windfall!
Jing Yan used Divine Thought to probe the underground of this area. In actuality, he had little hope of finding another Netherworld Crystal Stone Vein in this region.
The entire High-level Netherworld Cave is vast, and Netherworld Ore Veins are scarce. Finding an ore vein often relies on luck. Like before when Lu Chun went mad and attacked the ground, accidentally revealing a vein, that probability is exceedingly low.
This time, under the small ore vein discovered by Lu Chun and Ke Zun, Jing Yan detected a large ore vein, something he never expected. His probing behavior was more like catching rabbits while beating the grass, without much targeted intention beforehand.
It's akin to a regular cultivator finding a magic treasure on the road. After joy, he might carefully check if another magic treasure is nearby. Actually, he understands that the chance of finding another nearby is very low, but he will still search.
