I was reborn as a young master in an invincible family of immortals

Lin Yun and Su Yao walked slowly along the passage leading to the depths of the building. The passage was dimly lit, with only a few faint rays of light coming in from unknown places, casting mottled shadows on the ground and walls, as if the mysterious runes of this mysterious place were flickering faintly.

Lin Yun walked ahead, his sword tightly gripped. The spiritual energy emanating from it shone like a faint lantern, illuminating the short distance ahead. His eyes scanned the surroundings warily, taking in every protruding rock and every recessed corner. His heart pounded like a rabbit. He knew that within the mysteries woven by the Shadow Cult, every step could lead to unknown dangers. As a scion of an invincible family, his family's honor and mission were ever-present, and he couldn't afford to slack off even a little.

"Su Yao, this passage is dark and eerie. Who knows how many mysteries it hides. We have to be extra careful." Lin Yun said in a low voice. His voice echoed in the silent passage with a hint of barely perceptible tension.

Su Yao followed closely behind Lin Yun, her hands secretly forming seals, ready to cast spells at any time to deal with emergencies. She nodded lightly and responded, "Well, I know, Lin Yun. You should also pay attention to your back, don't let anything sneak up on us from behind."

After they walked cautiously for a while, a sudden chill shot up from the soles of their feet into their heart. Lin Yun stopped abruptly, sensing a thick, dark aura quietly spreading through the passage. Like a black tide, it quickly enveloped them.

At the same time, the walls on both sides of the passage began to glow with a strange black light. Countless shadows seemed to writhe and struggle within the light, as if trying to break free from the walls. The already dim light now became even dimmer, almost pitch black, with only the black light flickering with a chilling brilliance.

"Lin Yun, this... what's going on? The shadow aura is so strong!" Su Yao's voice was filled with obvious panic. She unconsciously moved closer to Lin Yun, and the movements of her hands forming seals became faster, preparing to cast a stronger defensive spell.

Lin Yun's face was solemn. He held his sword across his body and looked around vigilantly. He thought to himself: This Shadow Cult is indeed lingering, always coming up with these strange things. I must not let these shadows hurt Su Yao, and I must not let them hinder my pursuit of the truth and the protection of my family's reputation.

"Don't be afraid, Su Yao. Let's first see what this shadow is up to. Maybe we can find a way to deal with it." Lin Yun said calmly. In fact, he was not sure, but in front of Su Yao, he had to appear strong.

As the shadowy aura grew stronger, the shadows within the black light gradually condensed into blurry figures. Lin Yun's eyes widened, and when those figures gradually became clearer, he couldn't help but gasp.

Those figures turned out to be people wearing black robes and with ferocious faces. Their clothing and temperament were exactly the same as the descriptions of the Shadow Cultists that Lin Yun had seen in the ancient family books. Moreover, each of them exuded a powerful evil aura that made people shudder.

"Su Yao, look! They are people from the Shadow Cult. Why are they here? Is there some conspiracy hidden in this passage?" Lin Yun said in surprise and anger, and the anger in his heart was instantly ignited.

Su Yao also looked at the phantom Shadow Cult members in shock and said, "It seems that this place has a close relationship with the Shadow Cult. Lin Yun, we have to be careful. These guys are not easy to deal with."

A strong sense of mission surged within Lin Yun. He recalled the persecution his family had endured at the hands of the Shadow Cult. His ancestors had fought countless fierce battles against the Cult to protect their family and the world's peace. Now, facing these phantoms of the Shadow Cult, how could he retreat?

"Hmph, no matter what conspiracy they have, I will let them know today that our Lin family is not to be trifled with!" Lin Yun gripped the sword tightly, a determined light flashing in his eyes, and secretly vowed to seek justice for his family and solve all the mysteries related to the Shadow Cult.

Before Lin Yun and Su Yao were fully prepared, the phantom Shadow Cultists suddenly launched an attack. They flashed and rushed towards Lin Yun and Su Yao like ghosts, waving some weapons emitting black light in their hands. The evil aura of the weapons rushed towards them, making people feel as if they were in hell.

Lin Yun shouted loudly and rushed towards the incoming Shadow Cult phantoms, brandishing his sword, emitting rays of spiritual energy in an attempt to block their attacks. However, when his sword collided with the black-glowing weapons, Lin Yun felt a powerful impact, his arms went numb, and he almost lost his grip on the sword.

"The power of these phantoms is so strong!" Lin Yun was shocked. He knew that he had met a strong enemy.

Su Yao was also busy on the side. She quickly formed seals with her hands, muttered something, and cast a defensive spell, forming a layer of spiritual power shield around herself and Lin Yun. However, the attacks of those Shadow Cult phantoms were too fierce. Every time they hit the shield, it would flicker, as if it would break at any time.

"Lin Yun, we can't go on like this. The light shield can't hold on for much longer! We have to find a way to fight back!" Su Yao shouted anxiously. Her forehead was covered with fine beads of sweat, and the speed at which her hands formed seals became faster and faster, trying to continuously increase the strength of the light shield.

Lin Yun gritted his teeth and responded, "I know. I'm observing their weaknesses. You hold on!"

While struggling to fend off the attacks of the Shadow Cult's phantoms, he observed their every move intently, trying to find an opportunity from their attack rhythm and movement patterns.

In this intense battle, Lin Yun forced himself to calm down, knowing that panic would only make the situation worse. After careful observation, he finally discovered some clues.

He noticed that every time these Shadow Cult phantoms launched a powerful attack, they would pause for a moment, as if they were recharging their energy for the next attack. Moreover, during this pause, the black light on their bodies would dim slightly, as if the energy was temporarily dispersed.

"Could this be their weakness?" Lin Yun's heart stirred, and a glimmer of hope flashed in his eyes. He decided to observe for a while longer to confirm his guess.

So, he deliberately made some provocative movements, luring the Shadow Cult phantoms to attack even more frantically. Sure enough, after each attack, they would pause, the black light dimmed, and the energy dispersed.

"Su Yao, I seem to have discovered the weakness of these Shadow Cult phantoms! After each attack, they will pause for a moment, the black light on their bodies will dim, and the energy will disperse. We should take advantage of this time to attack them!" Lin Yun shouted loudly, with a hint of excitement in his voice, as if he saw a ray of hope in this dark and desperate situation.

Su Yao was cheered up when she heard this, and immediately responded: "Okay, Lin Yun, I will cooperate with you to the best of my ability!"

At this moment, although they were in extreme danger, a glimmer of hope ignited in the hearts of both of them, thinking that perhaps they could use this to turn the unfavorable situation of the battle around.

Lin Yun saw the perfect moment. When a Shadow Cult phantom launched another attack and paused for a split second after completing its attack, its black light dimming and its energy beginning to disperse, he shouted, "Now!"

The sword in his hand shone brightly, and he concentrated all his spiritual power on the tip of the sword, unleashing his strongest strike. This sword, with unstoppable force, slashed precisely at the Shadow Cult illusion.

At the same time, Su Yao quickly formed seals with her hands, muttered something, and cast an auxiliary spell to enhance the power of the attack, increasing the power of Lin Yun's sword to the extreme.

The tip of the sword accurately cut the Shadow Cult phantom. A dazzling light flashed, accompanied by a shrill scream, and the Shadow Cult phantom instantly disappeared into the air.

"Success!" Lin Yun and Su Yao shouted in surprise at the same time.

Seeing the effect, the two men gained confidence and continued to attack other Shadow Cult phantoms using the same method. As more and more Shadow Cult phantoms were eliminated under their concentrated attacks, they began to show signs of panic, their attack rhythm was disrupted, and their numbers gradually decreased.

Lin Yun and Su Yao gritted their teeth, seized the opportunity, and continued to launch more fierce attacks, finally successfully eliminating all the Shadow Cult phantoms.

The entire passage suddenly became quiet, leaving only the heavy breathing of the two people and the spiritual power fluctuations that had not yet completely dissipated.

Lin Yun breathed a sigh of relief, feeling relieved. But he also knew that this was only a temporary solution to the current crisis; they were still a long way from truly unraveling all the secrets and finding a way out. He looked at the sword in his hand, then at Su Yao beside him, thinking, "Luckily, she's by my side, otherwise I really don't know what to do this time."

After successfully resolving the crisis of the Shadow Cult's phantom, Lin Yun and Su Yao continued to move forward along the passage. As they went deeper, the light in the passage seemed to become slightly brighter. Although it was still dim, it at least allowed them to see farther.

Occasionally, strange scratches and marks appear on the walls on both sides of the passage. These scratches and marks have different shapes, some look like some mysterious runes, and some look like some simple patterns, but they all exude an ancient and mysterious atmosphere.

Lin Yun paused, carefully examining the scratches and marks, a surge of curiosity welling up in his heart. He felt that these scratches and marks might conceal some important clues, perhaps inextricably linked to this building, the Shadow Cult, and his own family.

"Su Yao, look at these scratches and marks. They don't seem simple. Maybe there is some key information hidden in them." Lin Yun pointed at the wall, his eyes full of anticipation.

Su Yao also came over and took a closer look, and responded: "Well, it's really strange. Let's study it carefully, maybe we can find a breakthrough to unlock the secret here."