"Your elder brother happened to hear a thing or two." Ma Tianxiong nodded, then a strange expression appeared on his face. "Junior Brother Ye seemed very interested in Top-Grade Pills. Given your aptitude, if you worked hard, even Lower-Grade Pills should be enough for you to reach Foundation Establishment."
"Hehe." Lin Xuan wore a smile, but inwardly he shuddered. He had been a little too obvious just now. Quickly, he said nonchalantly, "You're making fun of me, Senior Brother. I'm merely curious by nature and interested in all kinds of strange tales."
"Mhm." Ma Tianxiong did not grow suspicious. Lin Xuan's Heavenly Demon Appearance Alteration Technique was incomparably marvelous. With his current cultivation, unless one was a Core Condensation Realm expert, no one could recognize his true face. Ma Tianxiong continued, "Your elder brother once happened upon an introduction to Top-Grade Marrow Cleansing Pills in an ancient book..."
He suspected nothing. Since this was not some valuable secret anyway, he treated it as casual conversation and explained everything to Lin Xuan one by one.
It turned out that the grading of pills circulating throughout the Cultivation World was mistaken.
Lower-grade, middle-grade, and upper-grade pills were indeed classified according to their impurity content. However, the legendary Top-Grade Pills were not merely that.
So-called Top-Grade Pills possessed effects that defied the heavens. Not only was the proportion of essence within them extraordinarily high and their impurities exceedingly few, they also had to undergo a second refinement.
What was a second refinement?
As everyone knew, various heavenly treasures and earthly materials could be placed into a pill furnace and refined by an experienced cultivator into finished medicinal pills.
That was the first refinement.
To obtain a Top-Grade Pill, one first had to prepare an already refined Upper-Grade Pill, add several other spirit herbs,