After Lu Feng successfully persuaded Lang Sui Yu to back down and obtained the right to study the Nine Prisons Token, it took him more than two full hours before he barely managed to memorize everything.
"Sin Illumination," "Dissecting Heart," "Revealing Appearance," "Punishing Soul!"
The four methods of judgment alone had already benefited him immensely and left him profoundly shaken, making him keenly aware of the Nine Prisons Token's power and peculiarity.
As for the creation and refinement of the Nine Hells Corpse Puppet, it felt even more like a complete overturning of his understanding.
Such a method could only be carried out while the cultivator was still alive. Using the cultivator's own blood essence and lifespan as the price, the Nine Hells Mark was forcibly branded and sealed into their bones. Only then could they seemingly be reborn after death as the corresponding corpse puppet and continue burning their own power.
While secretly committing it to memory, Lu Feng also attempted to deduce its application upon the Blood-colored War Corpse. Though it was already a dead body and had deviated from the very first step, given the Blood-colored War Corpse's uniqueness—first possessing the remnants of Gu Diao's bones, then being bolstered by Saint's Bones, and further assisted by his own uniquely potent Creation Qi—
Perhaps, under its current condition, there was still a chance, however slim, of sealing the Nine Hells Mark deep into its bones. That would undoubtedly become a tremendous aid to him.
Lu Feng suppressed the delight in his heart and did not reveal much. Given his current circumstances, this was clearly not the time to attempt it.
Lang Sui Yu and the other woman knew full well how intricate and profound the Eternal Night Wheel and Nine Prisons Token were. They did not urge him