This formation seemed to be rewarded by the Taoist Court, perhaps for other reasons related to the Shangguan Family and the Taoist Court, which Mo Hua couldn't discern.
His task was simply to learn and apply the formation.
Moreover, this ultimate formation had been given to him by Aunt Wan.
Now, by applying this absolute formation in the Gu Family's refinery shop, part of the profit generated would reciprocally benefit Aunt Wan, making it a fair exchange.
After considering, Mo Hua began to sketch this second-grade, twenty-pattern Second-born Thunder Flow Formation onto the ultimate furnace.
Once completed, this last small furnace becomes a "magnetic ink furnace."
However, on the surface, nobody would be able to tell.
Moreover, nobody knew that Mo Hua had discreetly sketched an absolute formation onto the furnace in Solitary Mountain's refinery shop.
Even Master Gu was unaware.
Mo Hua merely informed him that this final furnace could produce a small quantity of precious magnetic ink.
Yet, there are many production methods for magnetic ink, which are also highly secretive; Master Gu wasn't too familiar with them, only marveling at Mo Hua's extraordinary formation expertise.
Mo Hua further instructed Master Gu: "In the space behind the magnetic ink furnace, which is used for magnetizing ink stone, there is a jade slip. Please replace it roughly once a month, and keep the replaced jade slip safe. When there's an opportunity, bring it to me."
"Jade slip?" Master Gu didn't fully understand but didn't ask further.
Although Mo Hua was only at the Foundation Establishment stage, to Master Gu, he was already considered an inscrutable "sage."
Especially after the Solitary Mountain experience, Mo Hua seemed even more enigmatic in Master Gu's eyes.
Master Gu solemnly replied: "Rest assured, young master, I will remember."
Mo Hua nodded in satisfaction.
These jade slips were of great use to him.
The "magnetic ink furnace" uses spirit stones to drive the formation, generating secondary thunder flow, "magnetizing" ores to produce "magnetic ink."
The presence of secondary thunder flow naturally leaves secondary thunder patterns.
These secondary thunder patterns are generated and respond within the furnace, eventually being recorded by Mo Hua on the jade slips.
These secondary thunder patterns are entirely distinct formation patterns.
Mo Hua intends to use these secondary thunder patterns on the jade slips to deeply comprehend and trace the origin of the Thunder Magnetic Formation Flow from another angle.
In other words, once the magnetic ink furnace is set in motion, it will produce magnetic ink, increasing the refinery shop's profit. Simultaneously, it will continuously yield a large amount of "secondary thunder patterns" for Mo Hua.
These secondary thunder patterns will provide a rich array of thunder magnetic materials, allowing Mo Hua to more swiftly and conveniently comprehend the origin of the Thunder Magnetic Formation Flow, enhancing his "thunder magnetic adept."