Bifang laughed, patted his chest, and said confidently.

"Don't worry, little princess. I will never let you get hurt. Besides, the treasures in this cave are still waiting for us to discover."

The two continued to walk along the corridor deeper into the cave. Without Qingyu leading the way, they had to carefully avoid the traps along the way, and occasionally had to stop to study them, so their progress slowed down a lot.

"The owner of this cave is really difficult to deal with. He actually set up so many traps. He really can't let anyone rest in peace even after his death."

Bifang complained while using the power of demon energy to explore the way.

Meng Wan followed behind him, reminding him from time to time.

"Although these mechanisms are very old, their power should not be underestimated. If they are accidentally triggered, it may cause unnecessary trouble. Young Master, please be very careful."

Bifang glanced back at her and smiled, "You are quite attentive, little princess. Don't worry, with me here, these traps can't do anything to us."

After walking for a while, a stone gate suddenly appeared in front of us.

The stone door was covered with complex runes, and there was a groove in the center that seemed to require some kind of key to open.

Bifang walked forward, took a closer look, and frowned.

“The runes on this stone door seem to be a blood seal. It requires either a specific key or matching blood power to open.

If the rune is forcibly destroyed, it may cause backlash."

"Master Bifang is indeed knowledgeable. I know nothing about these runes. Just tell me what I want to do."

Meng Wan looked admiring.

Bifang smiled complacently, and then searched carefully in the cave, trying to find any hidden keys or clues.

However, after searching for a while, he did not find anything related to the key.

"This stone door has existed for too long. It seems unlikely that we will find the key."

Bifang sighed and his gaze returned to the runes on the stone gate.

"In that case, the only option is to try to destroy these runes."

After he finished speaking, he took a few steps back and quickly formed seals with his hands.

The demonic power condensed into a blazing flame in his palm, transformed into a fire snake, and pounced towards the runes on the stone gate.

"boom!"

The fire snake hit the rune, bursting into dazzling light.

The rune seemed to sense the invasion of external forces and began to resist frantically.

A powerful recoil force bounced back from the stone gate and headed straight for Bifang.

Bifang was well prepared. He spread his wings and quickly retreated. At the same time, he waved his hands, and the power of demon energy turned into a flame barrier to block the recoil force.

"There really is something to it."

Bifang narrowed his eyes, and his tone became more serious.

Meng Wan stood aside, watching the scene nervously, and couldn't help but remind him.

"Young Master, please be careful. The power of these runes seems to be even stronger than we imagined."

Bifang nodded, a hint of cruelty flashing in his eyes.

"In that case, I can only attack with all my strength!"

He suddenly stepped on the ground, his body flew into the air, his wings spread out, and the power of demon energy surged wildly.

He muttered something, and saw the Bifang divine fire condense into a huge flaming sword in his palm. A scorching fire python was wrapped around the sword, emitting a heart-pounding pressure.

"Break it for me!"

Bifang let out a low roar and swung his giant flaming sword fiercely towards the stone gate.

“Boom!”

The giant sword collided with the rune, causing a deafening roar.

The runes on the stone gate began to crack under the impact of the flames, and cracks quickly spread.

At the same time, the backlash force of the rune also erupted, and a powerful energy wave spread from the stone gate, shaking the entire cave.

Bifang was knocked back by the force and hit the stone wall hard, with a trace of blood flowing from the corner of his mouth.

He managed to steady himself, his face pale.

Seeing this, Meng Wan hurried forward to support him and asked with concern, "Bifang, are you okay?"

Bifang waved his hand and forced a smile, "It's okay, just a minor injury. Facts have proven that this method works."

"But……"

Meng Wan hesitated to speak and looked at the stone gate with complicated eyes.

"There are at least eight hundred runes on this stone gate, if not a thousand. I wonder how much effort it would take to erase all of them."

Meng Wan looked at Bifang's pale face and said with some reluctance.

"Why don't we think of other ways, or... give up this stone door for the time being and look somewhere else?"

Bifang frowned when he heard this, with a hint of persistence in his tone.

"Little Princess, there must be an important treasure hidden behind this stone door. If we give up now, wouldn't all our efforts be wasted? Besides, I, Bifang, will not give up easily!"

After he finished speaking, he took a deep breath, forced himself to suppress the discomfort in his body, and gathered the power of the demon essence once again.

The flame reignited in his palm, although it was weaker than before, but still exuded a fiery aura.

Meng Wan bit her lip helplessly and took a step forward. "If that's the case, then let me help you. Two people working together is better than you trying to handle it alone."

Bifang was stunned for a moment, then shook his head and smiled.

"Little Princess, I appreciate your kindness. But the backlash from this rune is significant. I would be heartbroken if you were injured.

You should just rest aside and let me handle these runes."

Meng Wan wanted to say something else, but Bifang no longer paid any attention to her.

He formed seals with his hands, and the giant flaming sword condensed again, slashing towards the runes on the stone gate.

"boom!"

There was another loud bang, and the runes shattered several times under the impact of the flames, but the backlash force also erupted.

Bifang was shocked and took a few steps back, his face became even paler. He took out a pill and swallowed it, and his face became much more rosy.

Seeing this, Meng Wan looked extremely anxious.

She hesitated for a moment, but finally decided to take action.

She let out a soft cry, and the demonic power transformed into a soft light, enveloping the runes on the stone gate.

However, as soon as her power touched the rune, she felt a powerful backlash.

Meng Wan was caught off guard and was shaken by the force, causing her body to sway and almost fall.

"Little Princess!"

Bifang's face changed, and he quickly moved to her side, holding her up. "Are you okay?"

Meng Wan shook her head, her face turning pale.

"I'm fine. I just didn't expect the backlash of this rune to be so strong."

Bifang frowned, with a hint of blame in his tone.

"Didn't I tell you not to interfere? The backlash from these runes is too much for even me, let alone you?"

Meng Wan opened her mouth and wanted to say something, but when she saw Bifang's determined eyes, she finally nodded.

"Then... be careful. If you can't hold on any longer, don't force it."

Bifang smiled, his tone relaxed, "Don't worry, I know what to do."

After he finished speaking, he turned around and faced the stone door again, trying hard to erase the runes on it.