"Fujiwara Ken, what are you looking for?" Li Yi asked tentatively.

Fujiwara Ken stopped what he was doing and turned to look at Li Yi with a helpless smile on his face: "Li Yi, I must tell you the truth. I once heard an ancient legend that said there is a very important artifact hidden in this library. It may be the key to unlocking the power of the dragon vein."

Li Yi frowned: "Why didn't you tell us earlier?"

Fujiwara Ken sighed. "Because this legend has always been considered nonsense, I just wanted to give it a try. I didn't expect to have the opportunity to verify it today."

Li Yi still had doubts in his heart, but decided to trust Fujiwara Ken for the time being: "Okay, then let's look for it together."

The group continued their search, and after a while, Nanako suddenly discovered a long-forgotten ancient book. She carefully opened it and found that it contained some mysterious rituals and spells about the power of dragon veins.

"There is some important information here!" Nanako said excitedly.

Li Yi walked over and carefully examined the ancient book: "The spells and rituals recorded here seem very complicated, but they may be the key to unlocking the power of the dragon vein."

Fujiwara Kenya came over, a hint of excitement on his face: "This is exactly what I've been looking for!"

Li Yi looked at Fujiwara Ken's expression and relaxed his vigilance a little: "In this case, let's try to perform this ritual according to the records in this book."

Following the instructions in the ancient book, the group began preparing the materials and procedures for the ritual. Nanako drew the formation pattern, Li Yi meticulously recited the incantation from the book, and Fujiwara Ken helped them fine-tune the formation's details.

As the incantation was chanted, the formation began to emit a faint light, and the entire library seemed to be enveloped by a mysterious force. Suddenly, the ground began to shake, and a dazzling beam of light rose from the center of the formation, reaching into the sky.

"Success!" Nanako said excitedly.

At this time, a black space-time gate appeared in the center of the formation. The space-time gate was deep and vast, as if it was connected to the universe. Just as several people were shocked, a black shadow flashed and rushed directly into the space-time gate.

"Fujiwara Ken!"

It was Fujiwara Ken who entered the gate of time and space. Because it happened so quickly, Li Yi and others didn't even have time to react.

"Damn! This kid must have some conspiracy!" Qi Yaozu cursed angrily.

However, the door of time and space has been closed at this time.

As the incantation was chanted, the formation began to emit a faint light, and the entire library seemed to be enveloped by a mysterious force. Suddenly, the ground began to shake, and a dazzling beam of light rose from the center of the formation, reaching into the sky.

"Success!" Nanako said excitedly.

At this moment, a black space-time gate appeared in the center of the formation. The gate was deep and vast, as if it connected to the universe. Just as the few people were shocked, a black shadow flashed by and rushed directly into the space-time gate.

"Fujiwara Ken!"

It was Fujiwara Ken who entered the gate of time and space. Because it happened so quickly, Li Yi and others didn't even have time to react.

"Damn! This kid must have some conspiracy!" Qi Yaozu cursed angrily.

However, at this time, the door of time and space has been closed.

Li Yi clenched his fists, his face solemn: "Fujiwara Ken has been hiding his true purpose. He obviously knows more secrets about the power of the dragon vein. We must catch up with him and find out his true intentions."

Nanako calmly analyzed, "He entered the space-time portal for an important purpose. The only thing we can do now is find a way to reopen it."

"But how do we reopen it?" Qi Yaozu asked.

When they were about to reopen the door of time and space, they discovered a key problem: the materials and ancient books needed to open the magic circle were gone.

"These materials and ancient books...Fujiwara Ken must have taken them away!" Li Yi said gritting his teeth.

"So cunning!" Qi Yaozu swung his fist angrily and slammed it hard on the ground.

Nanako took a deep breath and tried to remain calm. "The fact that he took these things away means he was fully aware of our actions and had made preparations. We must find another way now."

"There's no other way. We can only exit this space first," Li Yi analyzed. "Since Fujiwara Ken has taken away all the materials to open the space-time gate, his reappearance location is unpredictable."

Nanako nodded: "He must have come prepared. We need to take a long-term view."

Qi Yaozu also agreed: "Indeed, our top priority now is to ensure the safety of the Dragon Vein Heart in our hands."

With no other choice, they had to return from the alternate dimension to the present time and space. They returned to the research institute in reality.

Fujiwara Ken's betrayal and departure clearly revealed a deeper crisis.

"We need to immediately begin investigating Fujiwara Ken's background and intentions,"

Li Yi said, "Why is he so eager to enter the time and space gate?"

"I will immediately contact local intelligence personnel with whom I have a good relationship and find out some information about their research."

Nanako said, "No matter where he is hiding, we will find him."

"At the same time, we can't ignore other forces," Nanako added.

"The aliens of Americus and Deutz are likely also searching for the Dragon Heart. We must prevent them from obtaining this power."

After reaching a consensus, several people took quick action.

Qi Yaozu contacted intelligence personnel to track and investigate Fujiwara Ken; Nanako was responsible for strengthening the protection and surveillance of the Dragon Heart; Li Yi continued to study the ancient books in his hands, trying to find more secrets about the Dragon Heart and the Gate of Time and Space.

In the next few days, Li Yi and others continued to receive intelligence and information, and they gradually pieced together Fujiwara Ken's true identity and motives.

At the same time, they also realized that the real crisis might be far more than just Fujiwara Ken in front of them, but rather the power and conspiracy hidden deeper.

As the investigation deepened, Li Yi and others gradually realized that the power behind Fujiwara Ken was not just a simple personal ambition, but a huge and complex organization. Their ultimate goal seemed to be to completely control the power of the dragon veins and thus subvert the order of the entire world.

Moreover, this organization involves all countries in the world, and it includes a group of ambitious conspirators from almost all countries.

"We must find Fujiwara Ken as soon as possible and stop their conspiracy." Li Yi realized the seriousness of the problem.

"It seems that someone from our Huazheng country has also participated in the plan of this organization!" Li Yi frowned, as if thinking about something.

"Let's put things here aside for now. Let's rush back to Huazhenguo and inform others of the intelligence we have learned." Li Yi planned to use an indirect approach, using domestic forces to find this organization by using potential people in Huazhenguo who are involved in this mysterious organization as a breakthrough point.