Lu Ren withdrew his aura, and Gui Shaoyin immediately felt the weight lift from his body. A trace of wariness appeared in his eyes as he looked at Lu Ren.
"Gui Shaoyin!"
Lu Ren suddenly asked, "In all your years at the Measure Pavilion, have you ever heard of Nine-Turn Soul Source Grass?"
"Nine-Turn Soul Source Grass?"
Gui Shaoyin was slightly startled. "Isn't that the herb used to refine Soul-Evolution Pills?"
"You know about it?"
Lu Ren asked.
"Of course!"
Gui Shaoyin said, "Our Measure Pavilion recruited several skilled alchemists. The Pavilion Master gave them a task: whoever could refine a Soul-Evolution Pill would receive an Exquisite Heart. But in the end, not one of them succeeded!"
"Later, the Pavilion Master received intelligence that the Withering and Flourishing Pavilion Master had refined one, so he ordered me to steal it!"
Hearing this, Lu Ren couldn't help asking, "Do those alchemists still have any Nine-Turn Soul Source Grass?"
"They certainly do!"
Gui Shaoyin nodded. "As far as I know, one of those alchemists is an early Dao-Proving expert who cultivates the Lihuo Great Dao. He seems to have condensed nine Dao-Proving Marks already. If you offered a fire-attribute Dao-Proving Mark in exchange, he would definitely be tempted!"
"A fire-attribute Dao-Proving Mark?"
Lu Ren frowned slightly.
Dao-Proving Marks were extremely rare.
Aside from ownerless Dao-Proving Marks naturally nurtured by heaven and earth, they could also be extracted by killing Dao-Proving Realm cultivators.
However, no matter how many Dao-Proving Marks a cultivator had condensed, once they died, all their other marks would collapse along with their Great Dao Origin and dissipate back into heaven and earth.
Only the first Dao-Proving Mark, the core of all the others, had any chance of being extracted intact.
"Gui Shaoyin, are you there?"
Just then, a deep