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

Lin Yun and Su Yao stepped carefully into the passage on the left, taking every step with extreme caution, as if the ground beneath their feet might encounter unexpected situations at any time.

Lin Yun pondered inwardly. Every choice along the way had been fraught with unknown danger, and this time was no exception. While the rune's guidance seemed to indicate we had made the right choice, who knew if this seemingly peaceful passage might conceal even more thorny challenges? The Shadow Cult's methods were always unpredictable and unpredictable; we must not take them lightly.

At this moment, the light in the passage was still dim, the runes and patterns carved into the walls emitting a faint glow, barely illuminating the path ahead. The floor of the passage was paved with a slightly rough stone, and the gaps between the stones seemed to emit a faint smell of antiquity, as if telling of the long history this passage had gone through.

Su Yao followed closely behind Lin Yun, her expression equally tense, always ready to cast spells to deal with possible dangers. She knew that in this mysterious castle, any negligence could lead to catastrophic consequences, so she had to remain highly vigilant.

The two of them walked silently in the corridor, only their light footsteps echoed in the silent space, and each sound seemed to knock on their tense nerves.

As they walked, Lin Yun suddenly sensed a strange surge of spiritual energy coming from deep within the passage. This surge was unlike anything they had felt before. It wasn't like a normal flow of spiritual energy, nor did it resemble the emanation of some spell or mechanism. Instead, it was a deeper, more obscure surge, as if concealing a vast secret.

"Su Yao, did you feel it? There seems to be something wrong in this passage. There is a very strange fluctuation of spiritual power." Lin Yun stopped and whispered to Su Yao.

Su Yao also stopped, closed her eyes slightly, and concentrated on sensing the fluctuation. After a while, she opened her eyes and said solemnly: "Well, I feel it. This fluctuation is very unusual. It seems that some ancient and mysterious power is awakening. We have to be careful."

Even as they were talking, the runes and patterns on the walls of the passage began to glow dimly. The originally stable light seemed to be disturbed by something, flickering unsteadily, making the entire passage even more eerie and gloomy.

Lin Yun gripped the sword tightly, and the spiritual light on the sword flickered slightly, as if responding to the changes in the surrounding environment. His eyes were fixed on the depths of the passage, trying to discern the dangers hidden in the darkness, but he could see nothing except the increasingly strong spiritual fluctuations and the flickering rune light.

"No matter what, we can only keep moving forward and see what is going on." Lin Yun gritted his teeth and said.

Su Yao nodded, and the two continued to walk slowly towards the depths of the passage. They took every step more cautiously, and their heartbeats involuntarily quickened.

After walking a little further, they saw some strange bumps on the ground in the passage ahead. These bumps were round and of varying sizes, with intricate runes carved into their surfaces. The runes emitted a dark red glow, making them particularly eye-catching in the dim passage.

"This should be some kind of mechanism. It doesn't look easy to deal with." Lin Yun said with a frown.

Su Yao walked forward and squatted down to observe the bulges carefully. She stretched out her hand, wanting to use her spiritual power to sense the situation of these bulges, but when her hand was about to touch the bulge, a strong suction suddenly came from the bulge, almost sucking her hand in.

"Ah!" Su Yao exclaimed and quickly retracted her hand.

Seeing this, Lin Yun hurried forward to support Su Yao and asked, "Are you okay? This mechanism is really powerful. We have to find a way to crack it."

Su Yao shook her head and said, "I'm fine, it's just that the suction of this mechanism is very strong, and I feel that there seems to be some connection between these protrusions. They seem to be operating according to a specific law. We have to find this law to crack it."

So, the two of them began to observe these protrusions carefully, trying to find clues to crack the mechanism from their shapes, sizes, runes, and the light they emitted.

Lin Yun thought to himself, this Shadow Cult is really good at setting up obstacles. Every mechanism is so complicated. I wonder how many more troubles like this will be encountered later. However, now that I have come this far, there is no reason to retreat. I must find a way to get through and find more secrets about the Shadow Cult.

During his observations, Lin Yun discovered that the runes on several of the larger protrusions seemed to flash at a different frequency than the other protrusions. Every so often, the light from these protrusions would briefly flash in sync, as if transmitting some special signal.

"Su Yao, look at the flashing frequency of the light of these protrusions. Isn't it a bit strange? I think there may be something here. Maybe it is the key to cracking the mechanism." Lin Yun pointed at the protrusions and said to Su Yao.

Su Yao looked in the direction Lin Yun pointed, observed carefully for a while, and then said: "Well, you make sense. I also think that the abnormal flashing of these protrusions may be hinting at something. Let's study it carefully."

Lin Yun and Su Yao surrounded the protrusions with abnormal flashing frequencies and observed and studied them more carefully.

Lin Yun squatted down, his eyes fixed on the runes on the protrusions, trying to find clues from their shape, arrangement, and differences from the runes on other protrusions. He found that although the runes on these protrusions were complex, some of their shapes were similar to those on the walls of the passage, but the runes here were more detailed and profound.

"Su Yao, look at the runes on these protrusions. They are somewhat similar to those on the walls of the passage. Could there be any connection?" Lin Yun said.

Su Yao also squatted down, took a closer look, nodded and said, "Well, it is indeed very similar. Maybe there is some correspondence between the two. We can try to think about how to crack the mechanism from this perspective."

The two continued to observe while discussing. Su Yao gently placed her hands on the protrusions, trying to sense the flow of spiritual energy within them. After a while, she opened her eyes and said solemnly, "Lin Yun, I feel like these protrusions are receiving and releasing spiritual energy in a specific order, and this order seems to be related to the frequency of their light flashing and the arrangement of the runes. I also noticed that when the light of these protrusions flashes synchronously, the spiritual energy they release will form a special spiritual energy field. This spiritual energy field may be the key to deciphering the mechanism."

Lin Yun's heart skipped a beat when he heard this. He carefully observed the flashing light and the formation of the spiritual energy field. Suddenly, he noticed that at the moment the spiritual energy field formed, an extremely faint light and shadow appeared on the ground not far ahead of the passage. The light and shadow was shaped like a key, and it flashed by so quickly that it was difficult to detect.

"Su Yao, I seem to have discovered something! Look, when the spiritual power field is formed, a light and shadow like a key will appear on the ground in front. Could this be the key to cracking the mechanism? We have to find a way to catch it or use it." Lin Yun said excitedly.

Su Yao was invigorated when she heard this, and immediately responded: "Okay, Lin Yun, let's try again and see if we can find a way to use this light and shadow."

Lin Yun and Su Yao decided to try to trigger the protrusions again to let them form a spiritual power field so that they could observe the light and shadow more clearly and find a way to use it.

Lin Yun took a deep breath and, following the patterns he had observed before, carefully touched the bumps with his spiritual power, controlling the frequency of their flashing lights so that they flashed synchronously, forming a spiritual power field.

Su Yao was staring intently at the ground in front of her, ready to catch the fleeting light and shadow.

When the spiritual force field formed again, the light and shadow appeared again. This time, Su Yao was quick-witted and swift-handed. At the moment the light and shadow appeared, she cast a spell and wrapped it with spiritual force, making it stay in place temporarily so that it would not disappear.

"Success! Su Yao, you are so awesome!" Lin Yun shouted in surprise.

At this time, the light and shadow wrapped by Su Yao's spiritual power gradually became clear. It was indeed in the shape of a key, and the key was engraved with delicate runes. These runes emitted a faint golden light, forming a sharp contrast with the surrounding environment.

"Lin Yun, what should we do next? How do we use this light and shadow key?" Su Yao asked.

Lin Yun thought for a moment and said, "I think this key should be used to open something in front. Let's look around here to see if there is a corresponding lock or mechanism."

So, the two began to search carefully around the passage. Not long after, they found a small depression on the wall on one side of the passage. The shape of the depression matched the light and shadow key exactly, and the area around the depression was also engraved with runes. These runes echoed the runes on the light and shadow key, as if waiting for the key to be inserted.

"This should be it!" Lin Yun said excitedly.

He carefully picked up the light and shadow key and slowly inserted it into the recess on the wall. When the key was fully inserted, a dazzling light burst out from the recess and quickly spread along the wall of the passage, illuminating the entire passage as bright as day.

At the same time, the raised mechanisms that had previously blocked the ground of the passage slowly sank into the ground and disappeared, and the road ahead of the passage was completely opened.

"Great, I finally passed this mechanism!" Lin Yun said with a long sigh of relief.

Su Yao also showed a relieved smile and said, "well, but we still have to move forward quickly. I don't know what is waiting for us behind."

The two continued walking towards the front of the passage, ready to face new challenges.

After walking through the opened passage, Lin Yun and Su Yao came to a completely new area.

The space here was very spacious, like a huge circular hall. The hall's dome was extremely high, inlaid with countless crystals emitting soft light. These crystals were like stars in the night sky, illuminating the hall.

The floor of the hall is paved with a transparent crystal. Through the crystal, you can see some flowing liquid underneath. The liquid emits colorful light, like a gorgeous ribbon flowing slowly underground, giving people a dreamlike feeling.

In the center of the hall stood a massive statue. Standing dozens of feet tall, it depicted a mysterious figure clad in robes and crowned. This enigmatic figure's face was solemn and dignified, its eyes gazing into the distance, as if guarding something important. The statue's body was covered in intricate runes and patterns, which shimmered mysteriously in the light of the crystals, lending it an even more ancient and mysterious air.

"This... what is this place? And who is this statue?" Lin Yun said in surprise, his eyes fixed on the statue, his heart full of curiosity.

Su Yao was also surprised. She said, "I don't know either, but this place looks very mysterious. Maybe it has a lot to do with the secrets of the Shadow Cult. We have to explore it carefully."

The two walked towards the statue in the center of the hall, taking every step carefully, for fear of triggering some new mechanism or causing other dangers.

When Lin Yun and Su Yao approached the statue, they could feel a powerful spiritual power fluctuation emanating from it. This fluctuation was even stronger than the one they had felt in the passage before, as if an irresistible force was warning them not to approach easily.

"The spiritual power fluctuations of this statue are very strong. We have to be careful." Lin Yun said with a frown.

Su Yao nodded, quickly forming seals with her hands and casting a detection spell, trying to sense what was going on inside the statue. After a while, she opened her eyes and said solemnly, "Lin Yun, I've detected that there seems to be something hidden inside this statue, and its spiritual power structure is very complex, as if some kind of power is protecting the contents. I also feel that this statue itself may be a huge mechanism. If the wrong part is touched, it may lead to serious consequences."

Lin Yun groaned inwardly upon hearing this. Every time he arrived at a new place, he'd always run into various thorny problems, and this time was no exception. However, now that he was here, he had to keep exploring, even if it meant danger.

Just as they were about to observe the statue further, suddenly, two dazzling rays of light shot out from the statue's eyes, shooting towards Lin Yun and Su Yao like sharp swords.

"Oh no, there's an attack!" Lin Yun shouted. He hurriedly cast a spiritual power barrier to try to block the two rays of light.

Su Yao also quickly cast an auxiliary spell to enhance Lin Yun's defense, while she also prepared herself to deal with the attack.