If he had been at his peak, Su Shi'er still would not have dared claim he was confident of breaking such an Immortal formation.
But the formation before him was already incomplete, and on top of that, he now possessed the Core Mansion Seal.
There might not be no chance of finding a safe path through it.
Su Shi'er examined it seriously, and Hu Meier beside him did not say anything more. She raised her hand and laid down several restrictions around them, protecting Su Shi'er while silently keeping an eye on changes along the road they had taken.
Time passed little by little.
In the blink of an eye, another half month had passed.
This day.
Two sharp glints suddenly flashed through Su Shi'er's eyes.
Immediately afterward, his hand seals shifted, and a strand of true essence entered the Core Mansion Seal.
The Core Mansion Seal trembled lightly, radiating an exceedingly faint azure light.
The azure light sank into the formation on the floor of the Spell Demonstration Hall, instantly causing dozens of patterns within the formation to light up one after another.
At first glance, the formation's aura had not changed much.
Yet at that moment, Su Shi'er stepped into the hall.
One step.
Two steps.
Every step landed precisely upon the dimmest spots in the formation's radiance.
The azure light on the floor churned violently.
As Su Shi'er advanced, terrifying power occasionally seemed ready to erupt from the depths of the formation, but under the influence of the azure light, it soon sank back into silence.
The distance was merely a hundred steps, yet Su Shi'er took nearly half an hour to cross it.
Only when both feet stepped onto the center of the hall, where not the slightest formation pattern remained beneath him, did he