As his gaze swept over it again and again, Su Shi'er's expression tightened, and he unconsciously held his breath.
The beast-hide maps did not record much—only the layouts of two formations, along with the methods to activate and control them.
Yet these two formations were anything but simple.
Not to mention the many formation-setting techniques and methods within that Su Shi'er had never encountered before, the formations themselves were also extraordinary.
Both were Level Four Formations.
Moreover, once successfully deployed, the formations possessed offensive, defensive, and even illusion-forming effects.
Su Shi'er already had some attainments in the Way of Five Elements.
He was also greatly interested in it. At once, he immersed himself in studying and comprehending them in detail.
At that moment, he forgot time, even forgetting everything else.
The more he absorbed and understood, the more he could not help clicking his tongue in wonder.
"Thousand Machine Island truly deserves its reputation as a place proficient in formations. Its understanding and application of formations are genuinely unique."
"These two Level Four Formations are the Taiyin Qi Men Formation and the Taiyang Qi Men Formation. From what those East Sea Archipelago cultivators said earlier, the Taiyin Qi Men Formation is one of Thousand Machine Island's three great wondrous formations, praised by countless cultivators throughout the East Sea Archipelago and famed far and wide."
"By that reasoning, this Taiyang Qi Men Formation must also be one of the three great wondrous formations."
"Judging from the information on this formation, the Taiyin Qi Men Formation Yan Dong deployed on Fire Dragon Island that day could at most be considered a reduced version. And the power it displayed was likely not even half a percent of its true might."
"If this formation could unleash even twenty or thirty percent of its power,