Why is the system dad angry again?

In the morning, news came from the palace. It was the people around the prince, but what they brought was news from the underground palace. It seemed that Emperor Changtang was noticed by the demons, and it was difficult to contact them directly, so the prince could only Came to send him a message.

The guard just gave them a letter, a map, and a key.

Lin Tangzhou opened the letter, which contained instructions for entering the underground palace and various places that needed attention.

And that map is the deployment map of the underground palace, with all the mechanisms marked on it.

Rong Feifei pointed her finger on the map and said solemnly: "There are five rooms. We need to act separately. This will save more time."

Ye Xiao said: "All rooms lead to an exit."

Lin Tangzhou whispered: "I think most of the demons hidden in the palace will be near the exit or entrance of the underground palace."

After a second thought, he asked curiously: "Aren't the demons also looking for the key? Don't they know it's in the underground palace?"

Qiao Yuanji explained: "We learned from Su Zhenan that he did not tell the demons about the whereabouts of the key. He wanted to use this to contain them."

"How courageous!" Lin Tangzhou sighed. He actually dared to threaten the demons, and he was not killed by the demons. He was a cruel person!

Ye Xiao's expression suddenly became serious. He put away the map and the key and said sternly: "We have forgotten one thing. We already know the whereabouts of the key. It is useless no matter how hard Su Zhenan hides it. , so he will definitely use the information about the key to make another deal with the demons! We will go to the underground palace immediately, and we must find the key earlier than the demons!"

Lin Tangzhou felt that the situation suddenly became serious. Ye Xiao was right. Su Zhenan would not let the demons know that the key information was leaked. In order to save his life, he could only tell them proactively, and maybe he could take advantage of it. Make a fortune.

The entrance to the underground palace is in the house behind the palace, which is far away from the main city. You can imagine how big the underground palace is.

They did not enter the house rashly. The five of them put breath-holding charms on their bodies, squatted on the tree, and watched the situation inside. As expected, as they suspected, the entrance was guarded!

In the corridor and inside the house, there were moving figures. They looked like ordinary people living here, but Lin Tangzhou and the others could feel the looming evil aura.

Lin Tangzhou's perception of formations was very keen. He just took a look at the layout of the house and could tell how many formations were in place and how heavily guarded it was.

"There are formations, five!" Lin Tangzhou gestured to them with a five.

Ye Xiao nodded. He also saw five formations, one to cover up their aura, a confusion formation, a control formation, and two attack formations.

Qiao Yuanji: "Brother Xiao, what should we do?"

Ye Xiao glanced at him and whispered: "Is there anything in you that breaks the formation?"

Qiao Yuanji raised his eyebrows and said: "There is no one who can break the formation, but I have a better one!" As he said that, he took out a formation flag from the storage ring, "This is a reverse formation, which can temporarily invalidate those formations. "

Lin Tangzhou was surprised. As expected of Qiao Tuhao, it was really a treasure chest with everything. "Those people still need to be dealt with, otherwise we will be discovered before we even get close to the entrance."

"I have a way!" Rong Feifei took out a few small puppets, "These are puppets. Although they are only in the late stage of Qi refining, they are enough to lure them away!"

Lin Tangzhou's eyes lit up, "What a good thing!"

Then they made a perfect plan, first attracting the attention of everyone in the house, using puppets to lure them away, and then Qiao Yuanji used the rebel flag, and they took the opportunity to enter the entrance.

Lin Tangzhou asked a fatal question: "Has the entrance location been determined?"

Ye Xiao slowly said: "The entrance is behind the wall of the study. As for the study...it didn't say which one it is."

Everyone was silent. It was true. The plan had been made, but suddenly one of the most important things had not been planned.

Qiao Yuanji clapped his palms with a fan and said, "Isn't this quite simple! Although the puppet led those people away for a short time, you can see from which direction the most people are coming!"

What he said makes sense and is irrefutable, but it also feels unreasonable.

Lin Tangzhou helplessly held up his forehead: "Forget it, I want to give it a try. Take it one step at a time. The house is not big. It shouldn't take us long to find it separately. Just remember to blow the whistle if something happens!"

After all, they had to act separately, so they set up a secret signal, each with a short whistle, which sounded like a bird's call, but each person's voice was different, thanks to the sponsorship of their treasure chest, Master Qiao.

After a while, the five people acted as planned.

Ye Xiao disappeared, avoided the formation, and landed directly on the roof, attracting the attention of those people. After deliberately fighting a few times, he ran towards the door. Rong Feifei took the opportunity to throw out five or six puppets, coming from all directions. Come on, lure those people away quickly.

Ye Xiao raised his hand, and Qiao Yuanji quickly threw out the formation flag.

"go!"

Lin Tangzhou headed directly towards the most guarded place. Before he could open the door, he heard Lu Zhuo reminding him: "The one next to it."

He immediately changed his direction and pushed open the room next to him. Everyone saw this and entered it together. Without saying a word, they pushed open the two large shelves against the wall of the study, and a complete wall came into view.

Ye Xiao knocked on the wall and pressed his hand on one place. After a muffled sound, a brick in the middle dented, revealing the door lock.

After opening the door, there were hurried footsteps outside. Ye Xiao waved his hand and the bookshelf he moved returned to its original position.

After entering the tunnel, it was pitch black, but fortunately they could still see.

"Remember the map?"

Ye Xiao's voice sounded, and everyone nodded in unison.

After walking through the twists and turns of the tunnel, they finally saw light before their eyes. There were five doors in total, each door was only about one person wide. They looked at each other, and then opened the doors at the same time.

Lin Tangzhou is the path on the far right and the one closest to the palace wall. If you don't go deep enough, you can still hear various noises coming from above. In front of him is a downward staircase, and along the stairs is a stone road. , kept walking along the wall, and then saw a house.

"This is actually designed with windows, what's the point?" Lin Tangzhou curiously opened the window next to the red wooden door.

With a "swish", hundreds of iron arrows flew out directly. If it were an ordinary person, they would have been sieved long ago.

Lin Tangzhou: "..."

Lu Zhuo: "...You really didn't remember any of the mechanisms on the map?"

Lin Tangzhou scratched the ground with his toes in embarrassment and said, "Who knew that such a mechanism would be set up in such a small window!"