A light breeze blows, rolling up patches of yellow sand. equal

The ruins of the entire city are filled with an oppressive and desolate atmosphere.

Du Mu settled down, and said in a deep voice to Luo Shen and the others: "Let's go, let's find a good place to stay tonight first." ”

Hearing this, the other three came back to their senses and gathered around Du Mu.

I don't know how it works, but even though it's underground, the passage of time and the change in sky in the ruins are the same as outside.

And when Du Mu and the others came in, it was already more than one o'clock in the afternoon, and it would be evening in five or six hours, once the night came, the activities of the fierce beasts would become frequent, so they had to find a good place to stay overnight before.

"The whole outer zone is like a ring, which is set around the outer edge of the inner zone, and our current position is here. ”

Taking out the map from his backpack and spreading it out on the stone, Du Mu pointed to the middle point under the ring, and then moved his finger to the middle of the upper part of the ring.

"And this is the entrance to the remains of the Gemological Institute. ”

The northern ruins traverse the border between the two countries, and the entrances and exits of the ruins on both sides happen to be on opposite sides, at opposite ends of the ring.

As a result of this geographical location, the upper part of the ring, which is the northern part of the outer area, is basically controlled by the gemological college, and the lower part of the circle, which is the southern part of the outer area, is controlled by the Star Luo College.

As for the middle border, that is, the eastern and western regions, it is a melee area, where friction and fighting often break out between the cadets of the two academies.

These are all intelligence materials provided by the military in the base, and Chi Xiangzhen and the others naturally know about it.

"So which direction are we going next?" asked Akai, looking up.

"The safest way is to explore in the northern region, the beasts in this place have been almost cleared, and there is no need to worry about encountering people from the Gem Academy, safety is guaranteed. ”

"Of course, the probability of finding pyroxene will be relatively low, after all, it has been dug up by the people in front of me and searched for it all over. Du Mu said.

When the words fell, Chi Xiangzhen immediately pouted and said, "We didn't come here to play safely, if we didn't find the pyroxene, then we wasted half a month's cultivation time, and we lost a lot of money." ”

Zhou Qixi and Luo Shen agreed with the jaw head.

Du Mu had expected it, and said with a smile: "Since this is the case, then there is nothing to hesitate about, just choose one of the western and eastern regions to explore." ”

"These two areas are relatively northern, and the danger will be relatively high, but due to the frequent conflicts between the two academies, many places have not had time to explore, and the probability of discovering pyroxene will be higher. ”

"Then it's decided that these two places will be the place!" Chi Xiangzhen slapped his palm, and then frowned again, "But is it better to choose the western region or the eastern region?"

"Let's go east. Du Mu said.

"Why?"

"Intuition. The corners of Du Mu's mouth turned up slightly, revealing a smile.

In fact, the reason why he chose the east was because when he was in the tent of the base, he accidentally heard someone in the logistics staff mention that recently, several second-year teams in the eastern region had suffered a big loss at the hands of the gemological college, and they had to leave the ruins and return to the base to recuperate.

As for why you want to go to the eastern region where the gemological academy is more powerful, there is no need to talk to Chi Xiang Zhen in detail.

As if sensing that something was wrong, Chi Xiangzhen stared at Du Mu suspiciously for a few seconds, snorted slightly, and didn't ask any more.

"Then let's go to the eastern region. Luo Shen smiled.

"I'm fine. Zhou Qixi hurriedly said.

"Okay, that's it. Du Mu clapped his hand, his finger in the northeast region on the map, "Let's find a place to spend the night here, and then set off for the eastern region early the next morning." ”

"Good!"

The four of them didn't talk any more nonsense, and after a little preparation, they drew their weapons and hurried towards the east.

As mentioned in the intelligence, the desertification of this underground city is very serious, and there is hardly a single plant in sight, and even insects and ants are very rare.

A few cracked concrete floors, after peeling off the stones above, the bottom is full of fine gravel, and the surrounding building surface is also covered with a layer of yellow sand.

Along the way, Du Mu and the others were very careful, and while hurrying, they were secretly vigilant against the movements around them.

It's true that there are fewer wild beasts in the northern region, but just because it's relative to other places, it doesn't mean it's not dangerous.

After the group walked out for thousands of meters, Du Mu suddenly noticed a slight vibration under his feet.

With a sudden jump in his heart, his figure immediately flashed, and he jumped forward without hesitation, while reminding everyone loudly.

"Watch your step!"

Luo Shen and the three of them were only one step slower than him, and then they all sensed the danger and decisively flashed away from the place.

In the next moment, where the four of them had been, the hard concrete floor suddenly cracked, blasting out a large area of sand.

In the dust, a thick figure burst out, tearing through the air and making a piercing and sharp strange sound.

Widening the distance, the four of them looked at it, and what came out of the ground with the intention of sneaking up on them was a monster seven or eight meters long, as if it was an earthworm magnified countless times.

The monster's body was covered with rough lines, its skin was a terrible white, and the lower half of the body was submerged into the ground, revealing the end of the body, which was covered with terrifying mouthparts with sharp jagged teeth.

The strange sound that everyone heard just now was the sound of jagged teeth rubbing in the mouthparts.

"Sand worms!"

Du Mu and the others recognized the type of monster for the first time.

The Sand Worm is one of the common species of wild beasts in the outer area of the ruins, and likes to suddenly jump out of the ground to sneak attack prey, has the ability to burrow into the ground, can spit out a strongly corrosive acid, and its strength is equivalent to that of a two-star mid-level martial artist.

"I just bumped into such a powerful monster!" Chi Xiangzhen's beautiful eyes narrowed slightly, and a trace of solemnity appeared on her pretty face.

The strength of the two-star mid-level desolate beast is not much weaker than her, and it is quite tricky to deal with, but fortunately, she is not alone, if everyone works together......

Before Chi Xiangzhen finished the thought in his mind, he saw a sudden flash on the side of the sand worm, Du Mu appeared there at some point, and a dazzling sword light slashed out from his hand, and blatantly cut the sand worm in two.

"......" Chi Xiangzhen stared at the scene in front of him blankly, and didn't know how to react for a while.

The sand worm has tenacious vitality, and after being cut into two pieces, the upper half is still wriggling and struggling wildly on the ground, and after being mended by Du Mu with a sword, it slowly stopped and lost its breath.

The nearby concrete floor was corroded by its sputtered bodily fluids, and large scorched blackened swaths.

"It's so corrosive!" Luo Shen glanced at the potholed ground, his face solemn, "It's not a joke if it's splashed head-on!"

Chi Xiangzhen and Zhou Qixi walked over to take a look, their faces changed slightly, and when they thought of the tragic situation after being splashed on their skin by acid, a layer of goosebumps immediately rose all over their bodies.

"It's okay, this guy isn't fast, it's not hard to dodge its attacks. Du Mu glanced at the two girls and comforted, "The main thing is to always pay attention to your feet, just don't be sneak attacked." ”

The small episode brought by the sand worms passed quickly, and the four of them continued to hurry, and encountered several sand worms on the way who wanted to sneak attack, all of which were detected by Du Mu for the first time, and they were killed instantly after drilling out of the ground, except for the slight delay in footsteps, it did not cause much trouble.

After rushing for nearly two hours, Du Mu estimated that he and the others should have entered the northeast region, so he slowed down and said to the other three: "Not far further is the eastern region, let's find a place near here to spend the night." ”

The three of Luo Shen had nothing to do, so the four of them scattered a little and looked for a suitable resting place nearby.

After a few moments, they settled on a low stone house.

Sandwiched between two three-story buildings, the stone house has a natural defensive wall, and in front of it is a clearing with a wide view, which can be spotted immediately if people or beasts approach.

Although there is a street in the back, except for the front door, the stone house has thick stone walls on the other three sides, and there is not even a single window, so there is no need to guard.

The stone house was empty, with only a single piece of gravel and a few larger stones.

By the time Du Mu and the four of them cleaned up the gravel all over the ground, the sky was already faintly red.

The four of them sat on the floor.

Du Mu leaned against the door, half of his body hidden in the darkness, eating the compressed biscuits and water taken out of his backpack, while observing the outside.

"The last time we were on a mission in Guyan Town, we were pretty much like that. Chi Xiangzhen took the food, walked to Du Mu and sat down, and said casually.

"Gu Yan Town?" Zhou Qixi on the side said in surprise, "Is it an actual combat mission?"

She did hear that Du Mu had carried out a combat mission, but he returned to school after only one day.

Chi Xiangzhen came to his senses, knocked his head, clasped his palms together and said: "I almost forgot, I'm sorry, Xiaoxi, the specific task process must be kept secret, I can't tell you in detail!"

"It's okay, it's okay. Zhou Qixi hurriedly waved his hand.

Xiaoxi?

Du Mu glanced at the two of them in surprise, it's only been less than a day, when did the two of you become so good?

"But that time was really choking, in the middle of the night, it was actually attacked by a herd of beasts, if it wasn't for Du Mu's efforts to turn the tide, I'm afraid we wouldn't have been so easy. Chi Xiangzhen sighed.

Zhou Qixi suddenly showed an expression of wanting to speak, not only wanting to know how Du Mu could turn the tide, but also not daring to ask in detail because of the confidentiality regulations in Chi Xiangzhen's mouth, and he was very entangled for a while.

Luo Shen interjected: "The vast majority of desolate beasts in the ruins do not have the habit of moving in groups, and the few that have the habit of gathering in groups basically live in the inner and core areas, so there is no need to worry about encountering beasts." ”

"That's good. Chi Xiangzhen breathed a sigh of relief, and out of the corner of his eye, he caught a glimpse of Du Mu beside him who had been silent, and he didn't talk to himself, and he suddenly felt slightly unhappy for some reason, his mouth opened slightly, and he wanted to speak, but he saw Du Mu's eyes suddenly condensed.

"Someone is coming. Du Mu threw the food in his hand aside and quickly got up.

Chi Xiangzhen's eyes changed, and he immediately restrained his distracting thoughts, and took the weapons on the side at the same time as Zhou Qixi and Luo Shen, and secretly became vigilant.

Everyone stopped and looked, and hundreds of meters away, there were four more figures on the sand.