Okay, Du Qian took a few steps forward, walked to Zhu Ke's side, and in the surprised eyes of everyone, he squatted in front of Zhu Ke's appearance, thought for a while, and also stretched out two fingers and pointed them on his temples.

His eyes stared fiercely at the rotten stone in front of him, and after a moment's effort, his eyes were about to burst out of his frame, and his pupils lost focus and focused on the bridge of his nose.

Qian Wuli, who was standing not far from him, opened her mouth slightly, with a smile in her eyes, cross-eyed?

What are you kidding, Boss Zhu will let you see it? At the beginning, he let other people see it like this, but who could see if there was anything in the stone drum? If he could really see it, he would have formed an adventurous team by himself a long time ago, and who would want to be a smaller team member?

You must know that within the Imperial Cave Heaven, there are tens of thousands of adventuring teams, but those who are really capable of seeing through the stone drum can only find a dozen people at most.

This is also the reason why every time their team makes an application, they can get the timetable for entering the hole as soon as possible, and squeeze those teams who applied before their team to the back.

Don't look at this team, there are only a few people, even the attendants combined, a small adventure team of no more than thirty people, with a powerful strength that ordinary people can't imagine, in all the adventure teams, even including the garrison, are qualified to rank in the top twenty.

After a while, Du Qian shook his head: "I didn't see anything." ”

Everyone looked like this, and they couldn't see it. According to Boss Zhu, it is an ability of the Soul Master, which is also not seen with eyes, but by sensing ability.

Anyway, no one can imagine the means of the soul master, whatever Boss Zhu says, let him go, in short, I don't understand, even a little demon girl like Qian Wuli, after trying a few times, she doesn't want to bother with this kind of thing.

You're not a soul master, you can't understand no matter how you explain it, and if you are, why do you need to explain?

"Shattered, ready to go. Zhu Ke nodded and said, this result, he is not surprised, more than a dozen stone drums, he has already sensed, and they are all empty.

With a casual blow from several attendants, the stone drum shattered, revealing the structure inside, some parts of which had been petrified, and more places were empty, like a stone with countless large and small cracks in it.

"How do you determine if it's a stone drum?" Du Qian grabbed Qian Wusheng and asked softly, he still didn't see it, what is so special about this thing, a stone with cracks is called a stone drum?

"Wait a minute. Qian Wuming stopped one of his attendants and took a complete stone drum from him.

"Play it and listen to it. Qian Wuming stuffed the stone drum into Du Qian's hand, and the team moved forward and drilled into the hole marked with the word 'A'.

Du Qian followed behind Qian Wuming, flicking his fingers on the stone drum as he walked, and he didn't need to explain, he also knew the origin of the name stone drum.

Every time the fingers of "bulging and ......" flicked, the stone drum in his hand made a low and pleasant sound, which was very similar to the sound of the drum.

"Is there a lot of this thing in the cave?" Du Qian asked Qian Wusheng in a short voice, among these people, he was the most familiar, so he could only ask him. Although Zhu Ke knows, but that guy, how does Du Qian look at it and how it is not pleasing to the eye, not to mention that he is the captain and has always been at the forefront, so it is inconvenient to ask.

Qian Wuming tilted his head and thought for a while: "I can't say a lot, anyway, there are a lot of them, can we find it to see luck, our team has to come twice a year on average, this is the sixth time, every time you go in and out, sweep the goods once, you can receive more than ten pieces on average, about that." ”

This is indeed difficult to measure, considering the hundreds of nearly thousands of stalls on both sides of the mountain, the number of stone drums must not be said to be many. But I can buy so many every time, and I really can't say that it's rare.

"How many have you found?" Du Qian still had no idea about the stone drum.

"I haven't found it, I know what you want to know, but I don't know much. There are less than two hundred stone drums swept by the sweep, and no one has ever found anything useful, anyway, every time Boss Zhu has to come like this, no one knows what he is looking for. ”

"No one knows?" Du Qian was even more confused when he heard it.

Qian Wuming nodded and said: "It's true that no one knows, maybe only people like Boss Zhu know, we just follow orders." The team of adventurers who came here all knew that the stone drum was worth a lot of money, the cheapest one could be sold for a hundred runes, the big one could be sold for three thousand runes, and the value of each centimeter of the diameter increased was about tripled, but other than that, I really didn't know anything. ”

As he spoke, a small cave appeared in front of him, and there were several more passages in the cave, each of which was numbered with paint, this time using numbers.

Following the team, drilling into the No. 2 passage of A, the speed of the team is getting faster and faster, as the number of passages increases, the crowd entering the cave is constantly diverted, and the number of people walking on the same road is rapidly decreasing.

As the number of the cave entrance became longer and longer, the number of people around him became less and less, and the number of digits was already as high as more than twenty, and there were only three teams left on this passage, less than two hundred people.

The speed of travel is very fast, Du Qian has no heart to care about the problem of the stone drum, and he is amazed in his heart, the numbering of twenty-three, it feels terrifying when he thinks about it, and only by concentrating the power of the empire and spending thousands of years can it be possible to complete this kind of numbering work.

He knew very well in his heart that this was the first day of entering the cave, and he had only walked for most of the day, and he didn't know how many digits would have to be added to such a number.

"At present, the longest number is one thousand two hundred and forty-nine digits, of course, it may be longer, this number will increase in length at any time, even if the army in charge of Dongtian does not know if the current number length has increased. Du Qian's thoughts, naturally can't escape Qian Wulife's eyes, in fact, every adventurer who has just entered the cave, no matter what his identity is, there will not be much difference in what he guesses in his heart.

This time, Du Qian didn't ask, thought for a moment and said, "Our team also has such a paint in our hands?"

The paint number on each hole is very thick and large, extremely eye-catching, and the font is full of patterns, obviously not from the hand of a special person, Du Qian felt that he had guessed the way and rules of numbering.

"Well, we also have it in our hands, whoever discovers the new underground cave first, who will number it according to the rules, and when you leave the cave, pass the new number to the cave management office, you can write it wrong, and it is not allowed to be altered, if it is wrong, add a special number as a modification at the end of the number. Qian Wuming said.

Quite simple and crude rules, I have to say, this method is very effective, no one knows how many such entrances there are in the cave, this work is definitely not something that a few people can complete, only by mobilizing every adventurer, can we continue to expand the scope of exploration in the cave.

"Our goal is the new area, in fact, the adventure team that comes here, most of them go to the new area, that is, those areas that are not numbered, in the cave, almost every moment, there are new numbers, some will be passed back to the cave management office after a while, some teams, or careless, may also have other purposes, did not pass the new number back at all, no matter what, as long as it is above the cave entrance, painted with the number, the latecomers can always understand. ”

It makes sense that this method doesn't seem like much, but it's really most effective in such an environment. Du Qian had to admit that the guy who invented this method was a genius.

This paint is obviously not ordinary, the history of this cave is not short, and the paint number is still very clear above the entrance of the cave when you first entered.

"Of course, unless you don't scribble the number, as long as you scribble, you can't change it, you can't remove it. Even for the sake of their team's safety, very few teams deliberately don't write a number. ”

"How long do we need to go?" Du Qian asked, he was hungry and kept asking questions, wanting to get more information in the shortest time possible.

"About six to seven days, the vertical distance is more than 4,300 meters, and the curve distance is more than 600 kilometers. ”

Du Qianyi frowned, the vertical distance was only a little more than four kilometers, but the distance he needed to walk was actually more than six hundred kilometers?

The road became more and more difficult to walk, and by one o'clock in the afternoon, there was only one team left on this passage, and the other teams had long since separated from the other passages.

It was only at this time that Du Qian felt cold. Entering the cave, I have walked more than 100 kilometers, according to Qian Wuming's statement, the first two days of the journey are familiar roads, relatively easy to walk, the speed is much faster, the deeper you go, the fewer people have walked, and in some places, there is no road at all. If there is no paint marking, whoever comes will get lost.

It was a little cold, Du Qian pulled out a piece of clothing from his backpack, in fact, the temperature here did not drop much, he knew that this was completely a psychological effect. The fewer people, the lower the temperature.

Lunch and dinner were eaten while walking, and along the way, Zhu Ke did not give time to rest, until it was almost ten o'clock in the evening, and finally stopped in a huge cave with no edge in sight.

In fact, along the way, such caves are not uncommon, but this cave is obviously very different from others.

"It's so popular. Du Qian involuntarily whispered.

"Yes, I'm actually the most annoying, but every time I enter the cave, I feel that it's actually good to have more people. "There was a sound of fire behind him, this guy, since he entered the cave, he rarely spoke.

"Do you like few people?" Du Qian was surprised, this guy is not ordinary active in Zhengyun Academy, how can he not like to be lively?

"yes, I'm actually quite introverted, the family needs it, you know. Firepower laughed helplessly.

"Hehe, don't be surprised, enter the cave, in such an environment, human nature is the easiest to reflect. Qian Wuming said with a smile. (To be continued.) )