Although Gu Wen's cultivation realm was vastly different from his, Gu Wen was simply clueless about the Alchemy Dao and pharmacology and could naturally assume the role of Gu Wen's temporary mentor for the time being.
"Ten Thousand Treasures are immensely precious, yet Immortal Lands are quite common, that's why countless people are breaking their heads just to get inside."
So Ten Thousand Treasures is Heavenly Marrow?
The thought crossed Gu Wen's mind and he touched the Jade Pendant with his finger. A flash of white light passed, and he had a piece of Spiritual Medicine in hand.
This Spiritual Medicine had grown under the influence of his own laws within the Inheritance Treasure Cave Heaven, and it was something Lan Yongning had never seen before.
He popped it in his mouth and chewed it. Now that he no longer had the guidance of the Fate Diagram, he could still compute the geometry of the Heavenly Marrow.
Three years of Heavenly Marrow.