Su Xi had originally thought that the solemn expression on True Master Tiangang's face was because Fei Yi had ambushed them. However, even though Fei Yi's soul had been killed, True Master Tiangang's expression had not relaxed.
Instead of relaxing, it had become even more solemn, as if something extremely difficult was about to happen.
Hearing Su Xi's words, True Master Tiangang snapped out of his daze. A look of confusion appeared on his face, and he said somewhat blankly, "I don't know what happened either. I only know that this place feels familiar, as if I've been here before."
"Familiar?" Su Xi looked around, finding the environment no different from any other place. She couldn't understand why True Master Tiangang would say that.
If there was anything different, it was that the vegetation here was more lush than elsewhere. But even if the grass was lusher, what did that prove?
Su Xi looked at the cryptic True Master Tiangang, knowing that she had no choice but to resolve his doubts.
Otherwise, True Master Tiangang would clearly go on his own. Her Ancestor was her last resort, and she couldn't let him be in danger.
So, she went with True Master Tiangang to the highest peak and they looked down together.
Looking at the undulating terrain before them, Su Xi was about to say there was nothing unusual when a different thought suddenly struck her.
If she remembered correctly, this scene bore some resemblance to a formation she had seen before, like the legendary Demon Sealing Formation.
However, Su Xi quickly dismissed the thought from her mind.
The legendary Demon Sealing Formation was specifically designed to deal with the malevolent energy of demons. Even if there were demons sealed below, True Master Tiangang wouldn't have such a strong reaction.
She was quite sure that her Ancestor was a genuine human, with no connection to demons whatsoever.
Hearing Su Xi's exclamation, True Master Tiangang focused his gaze on the formation ahead and instantly recognized it as the legendary Demon Sealing Formation.
Without further thought, he waved his hand, broke through the disguise, and said, "Let's go down and take a look."
Since he already had a premonition about this place, he wouldn't miss the opportunity. At this moment, he longed to find his memories and regain his strength.
Seeing True Master Tiangang walk away, Su Xi sighed and followed.
If this was indeed the Demon Sealing Formation, she couldn't let her Ancestor venture in alone.
The Demon Sealing Formation was not only effective in killing demons but also inherently suppressed souls. Even with True Master Tiangang's vast knowledge, he would be helpless against such a suppression from the origin.
Moreover, the formation had a total of ten thousand and eight hundred variations, each of which could spawn more. A single misstep would lead to death within the layers of the formation.
Therefore, two people were always better than one, and it would increase their chances of survival.
Standing before the formation, Su Xi frowned. "Ancestor, do we really have to go in?"
Even from outside, she could feel the turbulent energy within. Once they entered, their fate would be uncertain. She had never imagined that actively seeking death would feel like this.
True Master Tiangang glanced at the formation and nodded, saying without hesitation, "We've come this far, of course, we have to go in."
With that, he didn't wait to see if Su Xi was following and walked straight in.
In the depths of his soul, the call became stronger, making him impatient to wait.
The Demon Sealing Formation only allowed entry, not exit. It was easy to get in, but incredibly difficult to get out.
However, since True Master Tiangang had already entered, she couldn't stay outside. Although she was a woman, she wasn't disloyal.
The formation changed every moment, so to avoid separating from True Master Tiangang, she had to follow closely.
Fortunately, her luck wasn't bad, and she didn't fall too far behind True Master Tiangang.
After catching up to True Master Tiangang, she continued to walk deeper, her anxiety growing with every step.
After all, the deeper they went, the harder it would be to escape. And whatever was sealed by the Demon Sealing Formation was certainly not simple. Even after countless years, it was unclear whether that monster still possessed combat power.
If they were caught in the crossfire, with their current level, they would surely perish.
Yet, the usually wise True Master Tiangang seemed unconcerned, walking forward with his head bowed.
Suddenly, halfway through, he clutched his head and collapsed to the ground in pain, his soul flickering with an intermittent light.
"Ancestor, what's wrong?" Su Xi hurried forward to help True Master Tiangang, not knowing what had happened. He had been fine, so why had he suddenly become like this?
"My head hurts so much," True Master Tiangang groaned, clutching his head, his face contorted in pain.
"Headache?" Su Xi looked at True Master Tiangang, who was only a soul, and had no idea how to help.
Since True Master Tiangang was merely a soul, she couldn't take his pulse or detect any anomalies. She had no way of understanding what was happening.
Seeing the situation, Su Xi grew increasingly anxious.
However, True Master Tiangang's face began to twist, yet he made no sound, only emitting whimpers. As a soul, his body flickered more and more erratically.
Watching True Master Tiangang's increasingly pained expression, Su Xi became very anxious.
Regardless of how much True Master Tiangang had helped her in the past, if he was in trouble now, she wouldn't be able to escape this Demon Sealing Formation alone.
Therefore, no matter the cost, she had to save True Master Tiangang.
Seeing True Master Tiangang's body growing fainter, Su Xi became worried. Suddenly, an idea flashed through her mind. The Five Elements energy within her continuously flowed towards True Master Tiangang.
Since the Five Elements energy was the primordial force that formed the world, it might be of help to True Master Tiangang's soul.
As Su Xi's Five Elements energy poured into True Master Tiangang, he, who had been groaning weakly, immediately stopped crying out. His expression calmed, and he even seemed to be enjoying it.
Seeing that True Master Tiangang had calmed down, Su Xi's expression was not good.
In just that short while, True Master Tiangang had drained half of the Five Elements energy from her body. If this continued, even if True Master Tiangang recovered, she would be depleted.
Thus, she quickly withdrew the Five Elements energy.
Having been replenished by the Five Elements energy, True Master Tiangang felt much better. Looking at Su Xi, a look of confusion appeared on his face, and he mumbled, "What happened to me?"
Hearing True Master Tiangang's question, Su Xi gasped in shock, "Ancestor, have you lost your memory again?"