Let you be a good grandson, you raise a group of banshees?

Lu Yuan thought for a moment and said, "Maybe we can pretend to leave first, and then find a chance to sneak back."

Ye Qianmo shook his head and said, "The Palace Master is very smart, he won't be easily fooled by us. Moreover, the guards of the Nether Palace will be more vigilant, making it even more difficult for us to sneak in."

Mo Chen said: "Then what should we do? Is there really no other solution?"

Ye Qianmo gritted his teeth and said, "We can't give up. I will find a way to convince the Palace Master that we have no ill intentions. You guys hide for the time being and don't show up. When I find the right time, we will continue with the rescue plan."

Lu Yuan and Mo Chen looked at each other and nodded. They knew that this was the only way now.

Ye Qianmo found the Palace Master again and said, "Palace Master, I have asked those two people to leave the Nether Palace. They promised not to come back."

The Palace Master looked at Ye Qianmo and said, "You did a great job. Remember, don't have too much contact with outsiders in the future."

Ye Qianmo said: "Yes, Palace Master. I will remember it."

However, Ye Qianmo did not really let Lu Yuan and Mo Chen leave. She secretly arranged for them to hide in a safe place and wait for the opportunity.

A few days later, Ye Qianmo found the Palace Master again and said, "Palace Master, I heard that there have been some unusual situations around the Nether Palace recently. I'm worried that there might be danger, so I want to send someone to investigate."

The palace master frowned and said, "What's the abnormal situation?"

Ye Qianmo said: "There are some unidentified people lingering around the Nether Palace, and they seem to be trying to find out something. I'm worried that they will harm the Nether Palace."

The Palace Master frowned and fell into deep thought. After a moment, he said, "This matter cannot be taken lightly. Send someone to investigate the origins and purpose of these people immediately. If there is any abnormal situation, report to me immediately."

Ye Qianmo responded respectfully: "Yes, Palace Master. I will arrange it right away."

After Ye Qianmo left the Palace Master's Palace, she was secretly thinking. She knew this was an opportunity to get Lu Yuan and Mo Chen back into the rescue plan. She quickly found where Lu Yuan and Mo Chen were hiding and told them the situation.

Lu Yuan frowned and said, "Could this be a trap? The Palace Master may have suspected you."

Ye Qianmo shook his head and said, "I think this is a rare opportunity. We can use this investigation to secretly find an opportunity to approach the underground secret room. Moreover, those unidentified people may also become our helpers."

Mo Chen said worriedly: "But if the Palace Master discovers our true purpose, the consequences will be disastrous."

Ye Qianmo said firmly: "We have no way out. My sister is still waiting for us to save her. We must take a risk."

Lu Yuan thought for a moment and said, "Okay, then we'll proceed carefully. Ye Qianmo, arrange for us to join the investigation team first, and we'll act according to circumstances."

Ye Qianmo nodded in agreement, and then began to make arrangements. She used her identity as a princess to disguise Lu Yuan and Mo Chen as guards of the Nether Palace and mixed them into the investigation team.

The investigation team started searching around the Nether Palace. Lu Yuan, Ye Qianmo and Mo Chen carefully observed the surroundings, looking for any clues that might be related to the underground secret room.

During the search, they found some strange signs. Some places seemed to have been deliberately hidden, which made them more vigilant.

Ye Qianmo whispered, "These signs are suspicious. We must be careful. Someone may be watching us in secret."

Lu Yuan nodded and said, "We can't expose our purpose. Let's follow the normal investigation procedures and see if we can find more clues." They continued to search, and suddenly, a guard spotted a suspicious figure. The figure flashed by and disappeared into the woods.

The guards immediately chased after him, followed closely by Lu Yuan, Ye Qianmo and Mo Chen. They chased the figure in the woods, but could never catch up.

Finally, the figure disappeared into a cave. The guards hesitated for a moment, not daring to enter the cave rashly.

Ye Qianmo said: "There is probably something wrong with this cave. We can't let go of this clue."

Lu Yuan said: "But we can't go in blindly. Let's observe the surroundings first to see if there are any other clues."

They looked around the cave carefully and found some footprints and strange symbols. These symbols looked mysterious and seemed to be some kind of code.

Mo Chen said: "These symbols may have been left by those unidentified people. We need to find a way to decipher these symbols, and maybe we can find out their purpose and action plan."

Lu Yuan said: "We can record these symbols first, and then go back to study them. Maybe we can find some useful information from them."

After recording the symbols, they continued to search the surrounding area. However, they did not find any more clues.

After returning to the Nether Palace, they began to study the symbols. After some effort, they finally cracked part of them.

These symbols seem to indicate a place, and that place is likely related to the underground secret room.

Ye Qianmo said excitedly: "We finally have a new clue. Now we have to find a way to find that place."

Lu Yuan said: "But we can't arouse the suspicion of the Palace Master. We have to act carefully and not let him realize our true purpose."

Mo Chen said: "We can use the name of investigation to gradually approach that place. At the same time, we must also pay attention to the movements of the Palace Master in case he discovers our plan."

They began to formulate a new action plan. Ye Qianmo continued to lead the guards to search around the Nether Palace in the name of investigation. Lu Yuan and Mo Chen secretly searched for the place indicated by the symbol.

After several days of hard work, they finally found the place. It was a cave hidden in the valley, with some strange runes and guards at the entrance of the cave.

Ye Qianmo said: "There is a high possibility that there is a big secret hidden in this cave."

Ye Qianmo looked at the strange runes and guards at the entrance of the cave, and felt a strong sense of uneasiness in her heart. But when she thought that her sister might be inside, she strengthened her determination.

Lu Yuan whispered, "We have to find a way to lure these guards away and sneak in quietly."

Mo Chen thought for a moment and said, "I can use the exotic beast materials to make some small mechanisms, create some noise, and attract the guards' attention."

Ye Qianmo nodded in agreement, and Mo Chen quickly took action. After a while, he made several small mechanisms and set them up in hidden places near the cave.

As a slight explosion sounded, the guards were attracted by the sound and ran towards the source of the sound. Lu Yuan, Ye Qianmo and Mo Chen took the opportunity to quickly slip into the cave. (End of this chapter)