Immortality Cultivation: I can use my clansmen’s energy and blood to add points.

They opened the secret door and walked in. The secret door then closed and peace returned to the secret room.

Mo Han waited until the two of them left before walking out from the corner, a thoughtful gleam in his eyes.

"It seems that there is indeed some secret hidden here, and it is related to the ultimate secret of the Blood Vampire Sect." Mo Han murmured to himself, "I have to go and take a look, maybe I can find some clues."

He walked to the secret door, gently pushed it open, and slipped in.

Behind the secret door was a long passage. On both sides of the passage, dim oil lamps were lit, emitting a faint light. The atmosphere was eerie and terrifying, as if it was the entrance to hell.

Mo Han walked forward carefully along the passage, taking every step with extreme caution.

After walking for a while, he came to a huge cell, which was a hundred times more eerie and terrifying than the torture chamber outside.

Inside the cell, there was a man with disheveled hair. He was locked up with thick iron chains. His body was covered with scars and blood. He was gasping for breath and looked extremely weak, as if he would die at any moment.

"Who are you?" Mo Han looked at the man and asked in a deep voice, his heart full of vigilance.

The man slowly raised his head and glanced at Mo Han with cloudy eyes. He did not speak, as if he had lost the strength to speak.

"I'm here to save you." Mo Han saw this and said quickly, "Tell me, what happened here? Why did the Blood Ghost Sect want to capture you?"

The man glanced at Mo Han, a complex light flashed in his eyes, but he still didn't speak, as if he had something to hide.

"Speak up!" Mo Han said anxiously, his voice unconsciously raised a few notes, "Tell me, what is the ultimate secret of the Blood Ghost Sect? What is its relationship with the Tianyuan Empire's palace?"

"The ultimate secret..." When the man heard these words, his whole body trembled, his lips trembled, and he seemed to want to say something, "The ultimate secret... is... is..."

Before he could finish his words, he suddenly vomited blood, his body twitched violently, his eyes quickly became unfocused, and his life force quickly faded away.

"Hey! What's wrong with you? Don't scare me!" Mo Han was shocked and hurried forward to check, wanting to save him.

However, the man had already died, his body quickly turned cold, and he completely lost his life.

"This...what is going on?" Mo Han looked at the man's corpse, his eyes full of confusion and shock, and his heart could not calm down for a long time.

He didn't know why this man died suddenly, nor did he know what the ultimate secret he was talking about was, and he didn't know what all this had to do with the imperial palace of the Tianyuan Empire.

Mo Han searched the cell carefully but did not find any valuable clues, as if everything had disappeared with the death of that man.

"It seems that I can only leave here first and then make plans." Mo Han sighed, feeling helpless.

He returned along the same route, left the secret room, and found Uncle Mo Han.

"Uncle, have you found anything over there?" Mo Han asked, hoping that his uncle would gain something.

"No." Uncle Mo Han shook his head, his face solemn, "What about you? Have you found anything?"

Mo Han told Uncle Mo Han everything he found in the secret room, without hiding anything.

"What?" Uncle Mo Han was shocked after hearing this. "The ultimate secret of the Blood Ghost Sect is actually in the palace of the Tianyuan Empire? How is this possible?"

"Yes." Mo Han nodded, his face heavy, "Also, I found an important person. He seemed to know the ultimate secret of the Blood Vampire Sect, but he died suddenly, and his death was very strange."

"Dead?" Uncle Mo Han was stunned. "How did he die? Was he silenced?"

Mo Han described the man's condition before his death.

After hearing this, Uncle Mo Han frowned and thought for a long time before saying, "It seems that he was poisoned, and it is a very strong poison that can kill people in a short time."

"Poisoned?" Mo Han was shocked. "Who could have poisoned him? Could it be someone from the Blood Ghost Sect?"

"Not necessarily." Uncle Mo Han shook his head. "It could also be someone else. Anyway, this matter is very complicated. We must be careful and take a long-term view."

"Yeah." Mo Han nodded, "So what should we do now? Should we continue to stay here?"

"There is no value here anymore. Let's leave here first and make plans later." Uncle Mo Han thought for a while and said, "Let's go back to the palace first and see how His Majesty the Emperor reacts."

"Okay." Mo Han responded, and the two of them quietly left the Blood Demon Sect's stronghold, rode on fast horses, and galloped towards the direction of the palace.

The two of them galloped all the way, the sound of horse hooves was rapid, and they did not dare to stop for even a moment, for fear of being discovered by the Blood Ghost Sect. The sense of crisis like a thorn in the back lingered all the time.

At dusk, the setting sun dyed the sky blood red, and they finally arrived back at the palace of the Tianyuan Empire.

"You two, you're back." The guard at the gate saw them and hurried over with a respectful smile on his face, "Your Majesty has been waiting for a long time."

"Okay, we'll go see His Majesty right away." Mo Han responded, but he was secretly alert in his heart. What was the emperor's intention in summoning him so urgently?
The two followed the guards and entered the Golden Palace again, where a solemn atmosphere filled them.

"Your Majesty." Mo Han and his uncle Mo Han bowed and saluted with meticulous movements.

"Stand up." His Majesty the Emperor sat on the dragon throne, his eyes deep, like a bottomless cold pond. He slowly glanced at the two of them, "Did you gain anything from this operation?"

"Your Majesty, we have found some clues, but they are not complete enough." Mo Han said in a deep voice, his tone neither humble nor arrogant.

"Oh? What clues?" There was a barely perceptible gleam in the emperor's eyes, but his tone remained calm.

Mo Han hesitated for a moment, but finally decided to tell the truth about his findings in the Blood Vampire Clan's base. After all, they were now in a cooperative relationship, and he also wanted to use this opportunity to observe the Emperor's reaction.

"We found a note in a secret room in the Blood Ghost Sect's base. It said: The ultimate secret of the Blood Ghost Sect is hidden in the palace of the Tianyuan Empire." Mo Han said word by word, while closely watching the Emperor's expression, not missing any subtle changes. "What?" Upon hearing this, the Emperor's face changed slightly, and then he regained his composure, as if everything was under control. "Is there such a thing?"

"Yes, Your Majesty." Mo Han nodded, his eyes firm, "Also, we found a prisoner who seemed to know the ultimate secret of the Blood Vampire Sect. However, he died suddenly, and his death was very strange."

"Dead?" His Majesty the Emperor frowned slightly, as if a little surprised. "How did he die?"

Mo Han described in detail the man's condition before death, including vomiting blood, body convulsions, and the rapidly cooling corpse.

"It seems that he was poisoned." His Majesty the Emperor pondered for a while and said slowly, "And it is a very strong poison."

"Your Majesty also thinks it is poisoning?" Mo Han asked, but he was even more confused in his heart. The Emperor's reaction seemed too calm. Could it be that he really knew nothing about this matter?
"Yes." His Majesty nodded. "I have also heard of this poison. It can kill people in a short period of time. It is also colorless and odorless, so it is difficult to detect."

"Then does your majesty know who did this?" Mo Han asked, with a hint of temptation in his tone.

"Well... I don't know." His Majesty the Emperor shook his head, with a hint of helplessness on his face, "However, I will send someone to investigate, you don't have to worry."

"Thank you, Your Majesty." Mo Han said, but he sneered in his heart. His Majesty the Emperor was indeed playing dumb. He must know something but just didn't want to reveal it.

"What are your plans next?" asked His Majesty the Emperor, speaking in a casual tone, as if he was just chatting.

"We plan to continue investigating the ultimate secret of the Blood Vampire Sect." Mo Han said in a firm tone, "Since the clues point to the palace, let's start from the palace."

"Oh?" His Majesty's eyes flashed with a gleam of light, "How do you want to check?"

"This... we haven't thought about it yet." Mo Han said, with a slightly hesitant tone, "But we will do our best."

"Well, then go ahead and check it out." His Majesty the Emperor said, with a hint of encouragement in his tone, "I will fully support you."

"Thank you, Your Majesty." Mo Han and his uncle Mo Han bowed again and then left the Golden Palace, but their hearts were full of doubts.

"Uncle, what do you think the Emperor meant?" After walking out of the Golden Throne Hall, Mo Han couldn't help but ask, with a hint of dissatisfaction in his tone, "Why did he lie to us?"

"I don't know either." Uncle Mo Han shook his head, frowning, "But I think that His Majesty the Emperor must know something, but he just doesn't want to tell us."

"So what should we do now?" Mo Han asked, with a hint of worry in his tone, "Should we continue to stay in the palace?"

"Of course we have to stay." Uncle Mo Han said, his tone unwavering, "The clue is in the palace, how can we leave?"

"But, His Majesty the Emperor is obviously using us. Wouldn't it be dangerous for us to stay?" Mo Han said worriedly, with a hint of uneasiness in his tone.

"We have to stay here even if it's dangerous." Uncle Mo Han's eyes flashed with determination, and his tone was resolute, "We must find out the ultimate secret of the Blood Ghost Sect. This is related to the safety of all people in the world."

"Okay." Mo Han nodded, with a hint of helplessness in his tone, "Then what should we do next?"

"Let's look around the palace first to see if we can find any clues." Uncle Mo Han said with a hint of caution in his tone, "Remember, be careful and don't be discovered by the Emperor's people."

"Yeah." Mo Han responded, and the two of them began to investigate secretly in the palace. They were like cheetahs lurking in the dark night, carefully searching for clues.

The palace is huge, with countless palaces and pavilions. Finding clues is like looking for a needle in a haystack. They are like travelers lost in a maze, looking for an exit aimlessly.

The two men walked around but didn't find anything suspicious. They were like headless flies and gained nothing.

"Uncle, this is not a solution." Mo Han said somewhat frustratedly, with a hint of discouragement in his tone, "We can't find any clues at all."

"Don't lose heart." Uncle Mo Han comforted him, with a hint of encouragement in his tone, "Let's think of another way."

The two men sat in a secluded corner, thinking hard. They were as restless as wild beasts trapped in a cage.

"By the way, uncle, do you think the ultimate secret of the Blood Ghost Sect is related to that crystal ball?" Mo Han suddenly had an idea and said with a hint of excitement in his tone.

"Crystal ball?" Uncle Mo Han was stunned, and seemed a little puzzled. "Are you talking about the crystal ball we found in the Blood Demon Sect's forbidden area?"

"Yes." Mo Han nodded, his tone affirmative, "Didn't His Majesty the Emperor say that the crystal ball contains a power that can destroy the world? Perhaps it is the key to unlocking the ultimate secret of the Blood Vampire Sect."

"That makes sense." Uncle Mo Han's eyes flashed with a hint of approval, "But, we don't know how to use that crystal ball."

"We can go ask His Majesty the Emperor." Mo Han said, with a hint of hope in his tone, "Didn't he say that he knew that the crystal ball was related to the ultimate secret of the Blood Vampire Sect?"

"But will he tell us?" Uncle Mo Han said worriedly, with a hint of doubt in his tone, "He is obviously using us, why would he tell us such important information?"

"We can give it a try." Mo Han said, with a hint of determination in his tone, "Maybe he will tell us?"

"Okay, let's give it a try." Uncle Mo Han nodded, with a hint of helplessness in his tone, "But we have to be careful not to let him see our flaws."

"Yeah." Mo Han responded, and the two of them came to the Golden Palace again. They were like acrobats walking on a tightrope, carefully testing the emperor's bottom line.

"Greetings, Your Majesty." Mo Han and Uncle Mo Han bowed and saluted, their movements still meticulous.

"Why are you here again?" His Majesty the Emperor sat on the dragon throne and asked them in a calm tone, as if he had expected them to come. "Is there something wrong?"

"Your Majesty, we want to ask you about the crystal ball." Mo Han said, with a hint of tentativeness in his tone, "Didn't your Majesty say that the crystal ball is related to the ultimate secret of the Blood Vampire Sect? I wonder if your Majesty can tell us how to use the crystal ball?"

"Well..." His Majesty the Emperor pondered for a moment, then spoke slowly, with a hint of hesitation in his tone, "I don't know how to use the crystal ball, but I know that it requires a special spell to activate it."

"A special spell?" Mo Han and his uncle looked at each other, their hearts filled with joy. They were like explorers who had discovered a treasure, and were extremely excited. "What kind of spell is it?" (End of this chapter)