"Big brother, let's bring a few more soldier brothers in. Now the cave is pitch black, and nothing can be seen, so you need to light more torches to light up the cave and see what is going on inside. Wang Lung further proposed to Lin Xu.

"Well, you can arrange it, I'll make this hole a little bigger first, so that we can get in and out more easily. Lin Xuan nodded and said to Wang Lung.

Wang Lung then led his soldiers to find torches. Lin Xuan continued to expand the gap that had been opened in the wall until there was more than one person tall and three people wide. In this way, even if danger was found in the cave behind the wall, Lin Xu and the soldiers would be able to retreat into the room.

Soon, Wang Lung and more than a dozen soldiers gathered in the guest room with torches that had been lit. Each of them carried a torch, and the large room was lit up as bright as day.

Because the situation in the cave was unknown and there was great danger, Lin Xu personally gave advice to the soldiers, teaching them how to exit in an orderly manner when they encountered danger, and not to panic.

Subsequently, under the leadership of Lin Xu and Wang Long, the soldiers entered through the gap in the wall, and all of them entered the cave.

Lin Xuan took the lead and walked at the front of the team. In this way, even if there is danger in the cave, he can be the first to detect it and alert the soldiers behind him in time.

When he first entered, the cave was still very narrow, and some places even allowed only one person to pass through, so Lin Xu could only let the soldiers line up in columns, go in one by one, and regather again after reaching a relatively wide place.

Fortunately, there are not many narrow and difficult places to walk, and Lin Xu found that the further he went into this cave, the wider it became, which made him more full of expectations and longing for the scene in the depths of the cave.

In fact, not only Lin Xu, but also Wang Lung and the soldiers also wanted to find out as soon as possible and solve the mystery of this cave.

What made Lin Xuan feel a little relieved and pleasantly surprised was that since entering this cave, he had been very calm all the way, and he had not encountered all the dangers that he and Wang Lung had expected before. This is indeed a good sign. Lin Xu hoped that he and his brothers would be able to find out the situation in this cave so calmly and smoothly.

"Wang Lung, it seems that this cave is quite ordinary, there are neither mountain monsters nor demonic beasts. We were all too worried just now. Lin Xuan turned his head and glanced at Wang Long, who was closely following him, and said with a smile.

"That's right, big brother, it's best if this cave is not dangerous, and then let's see if there is any treasure like you said. Wang Lung said to Lin Xu.

"I was just guessing just now, and there may not be any treasure. If there was any treasure, the owner of this inn would have come in and moved out long ago. Lin Xuan said to Wang Lung in a joking tone. Now he saw that this cave was indeed too ordinary, and there was nothing special at all, so he didn't feel like a place where all kinds of treasures could be buried.

As soon as Lin Xu's words fell, Wang Long, who had been staring ahead, seemed to have found something, and suddenly reminded Lin Xuan loudly in surprise: "Big brother, look ahead, there seems to be a door." ”

Wang Lung said, and stretched out his hand to point ahead.

Due to the distance, the light from the torches was not yet fully illuminated. Lin Xuan followed the direction pointed by Wang Lung and took a closer look before nodding and saying, "That's right, it's really like a door, let's go take a look." ”

"Big brother, let's be careful, maybe it's some trap. "Wang Lung has always been very careful and meticulous, always thinking of all aspects, especially thorough.

"Okay, it's always right to be vigilant, you tell your brothers to be vigilant too, and when you find something wrong, you will retreat back together, and the two of us will take care of it. Lin Xuan instructed Wang Longdao. Here he and Wang Long's martial arts cultivation is the highest, so they naturally have to take responsibility for protecting the safety of the soldiers.

Wang Lung immediately turned his head and shouted to the soldiers behind, "Brothers, there is something unusual in the front, everyone should pay attention to it. ”

"Yes!" the soldiers replied to Wang Long in unison.

For the sake of prudence, Lin Xu had already pulled out the sword and held it tightly in his hand, if there was really any threat to his life and the lives of the soldiers, he could quickly draw the sword at any time.

After a while, the crowd finally came to a door. I saw that the door was covered with rust, it was obviously an iron door, and it was very old.

Lin Xuan carefully observed both sides of the iron gate and confirmed that there was no danger before putting the sword away again.

"Big brother, there really is an iron door here, there should be something special inside, maybe it is a precious treasure. Wang Lung said to Lin Xu as he walked to the iron gate.

"Hehe, if there is really a treasure, then we will all be developed. Lin Xu has always been very optimistic, and when he mingled with his brothers, he continued to carry forward his humorous style and said with a smile.

Lin Xuan clenched his fists and slammed the iron door hard, and immediately heard a very dull sound. From this sound, you can roughly judge the thickness of this iron door. If it is an ordinary thin iron door, the sound made when you hit it with your hand will definitely sound particularly crisp and loud. But now the voice Lin Xu heard was heavy and heavy, which showed that this iron door was not an ordinary thin iron door, but a thick iron door.

"Huh, this iron door is still very thick. Lin Xuan said with a little surprise.

"Big brother, and there is no lock on this door, so how can we open it? Can we just push it open?" Wang Lung also discovered the special feature of this iron door.

"Then let's push and see. But this iron door is so thick, I don't think it can be pushed open by manpower. Lin Xuan said to Wang Lung seriously.

Lin Xu and Wang Lung respectively grabbed the two gate rings on the iron door and pushed and pulled them to both sides vigorously, but no matter how hard they tried, the iron door still didn't move.

"Brothers, let's help the eldest brother push it together. Wang Lung ordered the soldiers loudly.

"No need. Lin Xuan shook his head, immediately stopped the soldiers, and said, "This door can't be pushed or opened, so there's no need to waste your strength." I think there should be a mechanism. ”

"Oh, by the way, big brother, there is no lock on this door, and it is such a heavy iron door, it should indeed be controlled by the mechanism. Wang Lung listened to Lin Xu's words, and immediately reacted, feeling that Lin Xu's analysis was correct.

Lin Xu and Wang Long immediately led the soldiers to look for the mechanism to open the iron gate on the iron gate and on the stone walls on both sides, but to their disappointment, everyone searched for a long time and did not find the mechanism to open the door. The thick iron door still stood in front of them, preventing them from continuing to explore.

After Lin Xu carefully inspected the entire iron door, he found that there were still some traces of impact on the door, and he knew that someone had already come here before this, and had also tried to open this iron door, but in the end it was obviously a failure.

"Big brother, have you discovered anything?" Wang Lung couldn't find the mechanism to open the door, and was a little discouraged, so he came over and asked Lin Xudao.

"I didn't make any useful discoveries, but I knew that there were people who came before us. Lin Xuan replied to Wang Long seriously.

"Where did you see that?" Wang Lung didn't know yet, so he asked Lin Xudao in a low voice.

"Look here, someone has knocked something against the iron door. Lin Xu pointed to the impact marks on the iron door and told Wang Longdao.

Perhaps due to the passage of time, these traces are covered in rust and are not easy to spot without careful inspection. Wang Lung could only see it after Lin Xu's guidance.

"Big brother, since someone has been here and hasn't opened the iron door when they want to, does it mean that the iron door can't be opened?" Wang Lung asked Lin Xudao.

"Impossible. Since it's a door, it can be opened. I don't believe there is a door in this world that can't be opened. Lin Xu would not agree with Wang Lung's statement.

"I don't know who built such an iron gate in the cave, there must be treasure inside. Otherwise, he wouldn't have had to build such a sturdy iron gate. "Wang Lung, no matter whether it is right or wrong, he has to tell Lin Xu what he thinks in his heart.

Lin Xuan agrees with this. Because just by this iron door, it can be seen that the cost is expensive, and the things placed in the iron door will naturally be more precious.

"Hehe, the harder it is to open the iron door, the more precious the treasure inside must be, and I'm getting more and more interested in it now. Lin Xuan said with a smile.

Seeing Lin Xu's relaxed smile, Wang Long followed suit and asked, "Big brother, you are so happy, have you thought of a way to open the iron door?"

"Not yet. Lin Xu replied to Wang Long with a smile: "I'm just almost certain that there must be treasure inside the iron gate." The thought of treasure makes everyone happy. ”

"Big brother, even if there is really a treasure inside, we can't open this iron door, it's for nothing. Wang Lung reminded Lin Xudao a little helplessly.

"Don't worry, the solution is thought of by people, as long as you use your brain, there will always be a way to open the door. Lin Xuan stabilized Wang Longdao, as if he was really not in a hurry at all, and he was extremely confident and sure.

Lin Xu stood in front of the iron gate, staring at the iron gate with his face up, and at the same time he had fallen into a kind of contemplation. Although the iron door was rusty, Lin Xu could still see that the iron door was engraved with a very simple and peculiar pattern. These patterns were all things that Lin Xu had never seen before, which showed how rare they were.

Lin Xuan secretly lucked his true qi, and all the strength of his body gathered on his palms, and he hit the crack in the middle of the iron door heavily.

"Bang-"

The sound was loud, and it still reverberated in the cave, and it didn't go away for a long time. This palm Lin Xuan had exhausted all the strength of his body, but the iron gate was still unmoving. Originally, he didn't plan to be able to open the iron door with his palm, after all, he already knew the fact that someone had hit the iron door with some kind of heavy object before, but in his expectation, the palm he tried his best to at least make the iron door shake.