Lin Yan felt both joy and worry after seeing these materials. Happy because it would greatly strengthen his foundation, worried because the amount of work involved was simply enormous. Even he would have to work himself to the bone to finish it. Not to mention, he still needed to refine his own Flame Path Gu worms.
After agreeing on the time for their next meeting, both of them went their separate ways.
After that, Lin Yan returned to the trade city. He decided to first refine his own Flame Path Gu worms and raise his combat strength as much as possible. Only then would he have a greater chance of helping Sun Cu during Immortal Ascension.
Since Lin Yan already had to refine the core and supporting materials for the Transformation Stone Immortal Gu, he might as well refine everything together.
Afterward, Lin Yan began visiting various shops to purchase Gu materials. Since arriving at the Ten Thousand Li Silk Corridor four months ago, too many matters had delayed his plans. Only now did he finally have the chance to fully focus on refining his Flame Path Gu worms.
And this time, he was not refining only Crimson Fire Handprint Gu. He was also going to refine all five of the Huang Family's Rank 5 Flame Path Gu worm, along with the three remaining Rank 4 Otherworldly Flame Gu he still lacked.
Thus, Lin Yan spent five hundred thousand primeval stones in one go, purchasing all kinds of materials. As for anything still missing, he could simply divert a small portion from the materials Sun Cu had prepared for refining the Immortal Gu. In any case, a little less would not matter much.
After a few days, Lin Yan immersed himself in the dream realm, repeatedly familiarizing himself with the refinement recipe of Crimson Fire Handprint Gu.
Ten days in reality was equivalent to nearly half a year within the dream realm, allowing him to practice the refinement process over and over until it became instinctive.
This was the advantage of possessing Master attainment in both Flame Path and Refinement Path. Once one reached that level, many things became almost natural.
After completely mastering the refinement recipes of the other Flame Path Gu, Lin Yan officially began refining Gu.
After consuming a huge amount of materials, he successfully refined four Rank 5 Gu within a single month: Five Aperture Fire Furnace Gu, Prairie Fire Gu, Netherfire Dragon Python Strength Gu, and Crimson Fire Handprint Gu.
If an ordinary Refinement Path Gu Master heard of such efficiency, they would probably be shocked speechless.
The first three Rank 5 Gu were inherited from the Family, corresponding to the three killer moves Flame Demon True Body, Prairie Fire, and Flame Extreme Sky Blade.
Among them, Five Aperture Fire Furnace Gu was refined from Fire Furnace Gu, while Fire Furnace Gu itself was an upgraded form of the Rank 3 Fire Source Gu. They belonged to the same series of Gu, all focused on reducing the primeval essence consumption of Flame Path Gu of the same rank.
However, the Rank 5 Five Aperture Fire Furnace Gu possessed a much stronger effect. When paired with five Fire Aperture Gu, it could store an enormous amount of fire energy. If linked with Fire Heart Gu, it could further increase the power of Flame Path Gu by several times.
Its interaction with Fire Pattern Gu was even more special, making it the absolute core of his entire combat style.
Prairie Fire Gu, on the other hand, was a pure large-scale offensive Gu. It was essentially a concentrated form of the Prairie Fire killer move, and when combined with Blazing Fury Gu and Sparks Gu, its destructive power doubled.
Finally, there was Netherfire Dragon Python Strength Gu, a one-time consumable Rank 5 Gu. Once used, it granted the terrifying strength of a Netherfire Dragon Python, greatly increasing physical power.
More importantly, his body already contained an Otherworldly Flame known as Netherflame.
While, Crimson Fire Handprint Gu, once activated, transformed into a massive crimson handprint over a three hundred metres wide, carrying terrifying destructive power.
Inside the quiet room, Lin Yan infused deep purple primeval essence into Netherfire Dragon Python Strength Gu.
The Gu instantly dissolved into strands of dark purple smoke that spread throughout his flesh and blood.
Buzz! Buzz! Buzz!
Lin Yan's body rapidly expanded, growing several times larger like a giant swelling with explosive power.
Countless bulges twisted beneath his skin, resembling enormous pythons writhing through his flesh. His veins thickened into dark-purple dragon tendons, while dark flames poured from his nose and mouth alongside faint dragon roars.
A few moments later, his body gradually returned to normal. He stood tall and straight, like a flood dragon rising from the depths of an abyss.
Boundless strength surged through his body. Combined with the strengthening effects of Glass Flame Bone Gu and Fire Heart Gu, Lin Yan felt as though he could tear the earth apart with his bare hands.
He slowly raised one palm, and a condensed sphere of dark fire appeared above it, moving freely according to his thoughts.
It was indeed a killer move created specifically for close combat.