"What's the matter, Senior Sister Nangong, is there something wrong with my calculations?" Duan Tiansheng saw Nangong Hong's surprised expression, and thought that his calculations were wrong.

"Ah...... No...... No, how could Senior Brother Duan's calculation be wrong!" Nangong Hong suddenly came back to his senses, and then he was a little embarrassed. Xiao Ming finally saw that there was a trace of embarrassment or shyness on Nangong Hong's face. But Nangong Hong adjusted quickly, and regained her calm face in an instant.

"Hehe, how can't you be wrong, math is a thing, if you are not careful, you will be wrong. Senior Sister Nangong must have seen the problem, right?" Duan Tiansheng didn't care about Nangong Hong's expression, but continued.

"It's okay, there's no problem, Senior Brother Duan's steps are all right, and the results obtained must be right!" In order to dispel Duan Tiansheng's curiosity, Nangong Hong immediately walked in front of Duan Tiansheng's scratch paper, looked at it for half a minute, and then said.

"Okay, since Senior Sister Nangong thinks there is no problem, then everyone takes two steps back and allows me to unseal it!" After Duan Tiansheng's answer was affirmed by Nangong Hong, he simply put away the scratch paper and pencil, and then prepared to unprint.

When everyone heard this, they all took two steps back. After all, this seal is quite difficult to look at, and who knows what it will be when it is unlocked.

Nangong Hong, on the other hand, glanced at Xiao Ming again, and then followed everyone to retreat.

"Old Chen, what you calculated was correct!" Xiao Ming was a little uncomfortable by Nangong Hong's eyes, but it was not him who calculated these answers, it was Chen Lao.

"Hehe, you don't believe it!"

Old Chen just smiled, and then looked at Duan Tiansheng as well.

"Six hundred and twenty-eight, forty thousand, sixty-two thousand eight!"

And at this moment, Duan Tiansheng was also ready, and the next moment, Duan Tiansheng's fountain pen came out directly in an instant, Xiao Ming and the others had not had time to see what Duan Tiansheng's fountain pen looked like, and several numbers containing some kind of law appeared in the space in front of the stone wall in an instant.

Exactly some of the numbers that have just been calculated.

Then, as soon as these numbers were formed, they spun rapidly in the air, and soon became a phantom similar to the figure on the wall, and after the phantom was formed, it paused for a second, and immediately printed directly towards the pattern on the wall.

"Boom!"

In an instant, the round phantom was imprinted on the pattern on the wall perfectly. Suddenly, the whole pattern brightened, and after the light passed, people felt that their feet began to vibrate, and then, Xiao Ming and the others saw that the stone wall in front of them was slowly cracking.

"Prepare everyone!

Then, after the stone wall cracked open almost three or four meters wide, a white light spilled over everyone. Then everyone heard Duan Tiansheng's voice.

"What kind of mysterious space is this?" Xiao Ming closed his eyes the moment the white light enveloped Xiao Ming, and then he was a little looking forward to where he would go this time. Then, as soon as he closed his eyes, he felt the familiar pull again, and now, he didn't do anything to resist, and his body relaxed. The next moment, Xiao Ming felt his body light again, and the whole person flew up involuntarily.

Then, this time Xiao Ming was prepared, only to feel as if his body was weightless, but this state only lasted for a few seconds, and after a few seconds, Xiao Ming only felt that his feet touched the ground again, and a down-to-earth feeling returned to his body. At this time, Xiao Ming couldn't help but open his eyes.

"Where is this?" As soon as Xiao Ming opened his eyes, he found that their group of people was actually halfway up a mountain, and at a glance, he saw that not far in front of him, there were clouds and mist, and a sea of clouds and smoke. Nearby, where they were standing, was a path leading to the top of the mountain, and beside the path, there were some strangely shaped stones and some low plants.

"Let's be quiet and see if anyone hasn't followed?"

Just as Xiao Ming looked at the surrounding situation suspiciously, Duan Tiansheng's voice sounded again.

"Brother Xiao Ming......" Then, Xiao Ming heard Ruolan's voice behind him, turning his head, Xiao Yan, Ruolan, and Nangong Hong were all there, and Duan Tiansheng, who took the lead, looked at everyone directly on a raised stone.

"Senior Brother Duan, there's no problem, it's all there!"

Then, everyone looked around at the people around them, and then they all confirmed.

"Okay, now there are seventeen people in total, next, as long as everyone listens to me, I will guarantee that there will be a lot of them back. Now that you have entered the secret treasure space, everyone must be vigilant!" Duan Tiansheng counted carefully, and then admonished. This was said so skillfully, which proved that Duan Tiansheng did not come to these mysterious spaces less.

"Rub it!"

"Don't worry, Senior Brother Duan, we will be careful!" Hearing Duan Tiansheng's words, everyone sacrificed pens one after another, and then Xiao Ming saw that everyone had colorful fountain pens, and as soon as these fountain pens came out, they all exuded a variety of colors. And by comparing with each other, Xiao Ming found that his fountain pen was dull and did not shine.

And the pens of Ruolan and Xiao Yan next to them also still glowed with some light light.

"Old Chen, what kind of color is my fountain pen?" This comparison, Xiao Ming felt a little hurt. He bought this pen for fifty dollars.

"Look at you like this, you should be an ordinary product. Chen Lao also felt that the pen Xiao Ming took out was a little trembling, and his face was a little unbearable.

"Ordinary goods...... Xiao Ming didn't feel a little gloomy, but he found that no one paid attention to his fountain pen, and everyone looked around a little defensively after they all sacrificed their fountain pens now, as if they were afraid of some monster coming out all of a sudden.

"Xiao Ming, don't be sad, after we go back, Chen Lao will help you refine a good fountain pen. Seeing that Xiao Ming was a little lost, Chen Lao immediately said.

"Well, okay!" Hearing Old Chen's assurance, Xiao Ming couldn't help but cheer up a little.

"Xiao Ming, Ruolan, Xiao Yan, Ding Bao, you are all third-year cultivators, you will stay among us after a while, and you don't have to fight. Of course, while we will protect you, don't let your guard down. Keep an eye on the combat situation at all times. Seeing that everyone had sacrificed their pens, Duan Tiansheng was very satisfied, and then looked at Xiao Ming and the others again, and finally admonished. Of course, he couldn't help but glance at Xiao Ming's dull fountain pen, but he didn't say anything.

"Well, we know!"

A few immediately nodded obediently.

"Okay, everyone, stay on guard and follow me!" After arranging, Duan Tiansheng walked in front of everyone, and suddenly, around his body, a cyan fountain pen immediately surrounded him, as if it was protecting him at any time. Duan Tiansheng's cultivation is the highest, and he naturally deserves to open the way in front.

"Let's go!"

Xiao Ming and the others immediately followed.

"Old Chen, what kind of place is this?" Xiao Ming followed, but when he saw that everyone's expressions became serious, they stopped talking, and he could only talk to Old Chen. Being in the center of everyone's protection, Xiao Ming felt a sense of relief.

"This place, I feel a depressing atmosphere, it shouldn't be a good place!" Chen Lao frowned and felt it for a moment, and then said.

"Uh...... Old Chen, what is the answer?" Xiao Ming was a little stunned.

"Hehe, I'm not a high school student or college student, I don't have such a strong sense of perception, how can I know, but you just need to be vigilant, this place is full of yin energy, just be careful." Chen Lao first smiled helplessly, and then told Xiao Ming.

"Well, okay!" Hearing Elder Chen's advice, Xiao Ming didn't talk to Elder Chen, but clenched the pen and followed everyone slowly.

"What man!?"

Everyone walked very slowly, this place was a secret treasure space, no one dared to guarantee what was inside, even if Duan Tiansheng cultivated profoundly, he didn't dare to lead everyone to move forward quickly. But when the team was slowly advancing, Duan Tiansheng's shouting suddenly sounded, and then everyone couldn't help but feel nervous, and followed Duan Tiansheng's eyes to look over.

"Nothing?" Xiao Ming also glanced over.

It was an overgrown mountain bag, and it didn't look strange or moving. But Duan Tiansheng stopped everyone and looked at the mountain bag in front of him vigilantly.

"Don't come out yet, do you? Then don't blame us for being rude!

Duan Tiansheng remained serious, seeing that the mountain bag still did not move, the next moment he directly commanded the fountain pen around him to move, and suddenly, a large number of regular numbers of prime numbers swarmed away. With such a large number, Xiaoshan Bao can't resist it at all.

"Da Da Da!"

However, when those prime numbers were about to attack which hill bag, they finally made a move. Everyone only heard a clattering sound, and then saw that behind the small mountain bag, small iron beads flew out, and these small iron beads hit the composite prime number in the air very accurately, and suddenly, a large piece of prime composite number was directly intercepted.

"Baga, Baga!"

Then, after a clattering sound, a group of one or two hundred humanoid monsters in yellow shirts suddenly appeared behind the small mountain bag, and these monsters made a rattling sound from time to time, holding a strange weapon in their hands, and spraying extremely powerful small iron beads.

"Devil!!"

Seeing this group of things coming out, Duan Tiansheng exclaimed, and a large number of prime numbers instantly attacked forward again, and then with a bang, a series of infinite loop decimal defenses were quickly cast again, blocking in front of everyone. also blocked the bullets that came from the roar of the group of devils.

"It's a devil, everyone dare to find something to hide, listen to my orders, and then attack with a composite number of prime numbers!" Duan Tiansheng's face was unprecedentedly serious, and he said solemnly.

"Devil!" everyone was also taken aback, and then immediately listened to Duan Tiansheng's words and quickly hid it. Everyone knows that monsters like devils, although their individual strength is not very strong, they have powerful weapons. Of course, they also knew how brutal and inhumane a humanoid monster like a devil was.