The four of them went all the way north, and then walked northwest along the winding desert trail, and finally stopped in an extremely flat blue desert area.

Xiaosan took out a strange iron plate from his arms, and erected an iron rod in the center of the iron plate vertically, and then looked up at the sky, and his palm was adjusting the iron rod from time to time.

Looking at the strange iron plate in Xiaosan's hand, Mo Xuan asked curiously, "Brother Xiaosan, what are you doing?"

"Measure your bearings. Xiaosan said casually, quickly put away the iron plate in his hand, patted the sand under his feet, and said, "This is it, I heard that strange sound in this place last time." ”

Mo Xuan swept his eyes around and asked with some suspicion: "Brother Xiaosan, are you sure it's here?"

Xiaosan smiled slightly and did not speak.

Xinglang smiled: "Brother Xuanying, although this kid Xiaosan has a black belly, his star-pulling technique is very powerful, since he said that it is here, it must not be wrong, unless he has a crippled hand." ”

"A gentleman doesn't fight with villains, what you say, I'll treat you as if you're praising me. Xiaosan glanced at Xinglang.

The tenth concubine glanced at the homely quarrel between the two, ignored it, looked at the desert in front of her, and said: "Since it is here, it shouldn't be wrong, but there is no such thing as a cave in this place, if there is really a treasure here, then it must only be underground." ”

Mo Xuan also nodded and asked, "But this place is so big, where can we find it?"

The tenth concubine said: "Look at the providence of heaven, today we will take the mining of Xuanjing as the task, and see if there is anything strange when we are picking." When we also collect, we try to stay away from each other, so that we can search for the largest area as much as possible. ”

"Good. Xinglang and Xiaosan agreed.

Mo Xuan smiled awkwardly and said, "But Sister Tenth Concubine, I just came, and I don't know how to pick Xuanjing yet." ”

"You follow me in a while, and I will teach you the source technique of mining Xuanjing. The tenth concubine's face remained unchanged, and she still said coldly: "Xinglang, you go to the left, go to the right, if there is a situation, just shout loudly." ”

"No problem. Xinglang and Xiaosan nodded, and then they went to the left and right, and began to pick up the crystals.

"You, come with me. The tenth concubine said softly and walked directly to the front.

Mo Xuan followed closely and walked for about a few tens of meters, and the tenth concubine stopped and bent down. Looking at a black crystal-like stone in front of the tenth concubine, Mo Xuan thought that the former was going to teach him how to mine Xuanjing, so he hurriedly leaned over.

"You should, it's not the strength of the six veins. As soon as Mo Xuan squatted down, the tenth concubine made a questioning voice, but the voice was very low, and only the two of them could hear it.

Mo Xuan was taken aback, thinking that the Tenth Concubine had discovered something, so he hurriedly laughed and said with a smile: "Sister Tenth Concubine, what are you talking about? What is not the strength of the six veins? I don't understand it." ”

"Don't be nervous, I'm not looking at you, what your identity has nothing to do with me, and I don't want to know. As long as you're not here to target me, I'm not going to interfere with you. The tenth concubine whispered, but her face did not change in the slightest, as if chatting as usual.

Hearing this, Mo Xuan also understood that the tenth concubine must have known something, so his face turned cold and asked, "How did you find out?"

"The strength of the six veins, the first time I entered the Source Qi Tower, I didn't notice anything abnormal. The tenth concubine whispered, and at the same time, a pair of snow-white skillful hands stretched out, stroking the piece of Xuanjing from time to time, from a distance, it really seemed to be teaching Mo Xuan.

"What do you mean, you also noticed something abnormal?" Mo Xuan frowned slightly.

The tenth concubine said: "I have found out a long time ago, and I have been exploring for a long time, but I have not found any results." I didn't notice you until yesterday when you asked Xinglang if he noticed anything unusual. ”

"Then why didn't you say it earlier. Mo Xuan asked.

"The Barren Academy is heavily guarded, and there are many ears and eyes, and if the news leaks, I will definitely die without a place to bury. So I can't say, even more, that I don't believe in them very much. ”

"Are they? Are they Xinglang and Xiaosan? But aren't you best friends?"

"Sometimes, it's often your best friend who hurts you the most. ”

"Then why are you telling me? ”

"Because I know you're not an ordinary person. The tenth concubine smiled, that smile was like a snow lotus in the ice sun, although it was a flash in the pan, it was enough to make people greedy.

Although Mo Xuan didn't understand what love was, he was also impressed by the simplicity and coldness of this moment. After a moment's stunned expression, Mo Xuan smiled helplessly and said, "How can you be so sure that I am not an ordinary person?"

"The eye is the window to the soul, and it cannot deceive people. What's more, you can easily suppress the alien source qi in the source gas tower, which is enough to show that you are not ordinary. The tenth concubine said.

Mo Xuan didn't refute, and asked again, "Is the alien source qi you said the strange source qi in the tower?

"I don't know, but the source qi in there doesn't seem to come from the source gas ore, but like the source qi in the body of a fierce beast. The tenth concubine said softly.

"The source qi of the fierce beast?I see, no wonder when you heard Xiao San say that there are fierce beasts here, you directly chose to come here to check it out, right?" Mo Xuan suddenly said.

"That's right, I've been secretly investigating here for more than a year, within a radius of thousands of miles, but I will check wherever there are rumors of fierce beasts, and this is the most recent one. The tenth concubine said.

"And what did you find?"

"Didn't find it. The tenth concubine blinked, her voice changed, and she said, "But there is one thing that is very strange, if you also want to find out what the alien source qi in the source qi tower is, you may be able to pay more attention." ”

"What's the strange thing?" Mo Xuan came to his senses.

"Every night of a blood moon, the desert near the Barren Academy shakes. The tenth concubine frowned.

"Didn't you say that it was the shaking of the earth's veins?" Mo Xuan was puzzled.

"The earth veins are just an excuse for the academy, how can you believe it?, and if it is really the earth veins shaking, it may be shaking at a fixed time every month?!" said the tenth concubine.

"It really doesn't make sense. Mo Xuan shook his head slightly and said, "Then you mean that the desert vibration caused by the night of the blood moon is actually not a natural force, but a fierce beast?"

"I didn't believe it until I heard the cries of beasts. And the blue-robed young man said that there was something hidden under this desert, so I was sure that there must be something we were looking for underneath this ground. The tenth concubine said.

"Then what do you want to do?" Mo Xuan asked.

"Inquire secretly, and keep quiet. Since Xiaosan said that he heard the cry here, then there should be any traces left in this vicinity, we will look for it first, and if we can't find it, we will discuss it after returning to the hospital. The tenth concubine said softly.

"Well, good. Mo Xuan nodded in agreement.

...

After the discussion, the tenth concubine handed over the source technique of mining Xuanjing to Mo Xuan. In fact, this kind of source technique is very simple, to put it bluntly, it is a method of controlling the source qi, you only need to condense a source qi blade between your two fingers, and use that blade to continuously cut the connection between the Xuanjing and the ground, so that you can pick the Xuanjing.

However, you must be very careful when cutting, because there is a crystal bee hidden under the crystal, and the crystal bee bee needle is poisonous, in case it is bitten, it will be very troublesome.

Mo Xuan thought it was fun, and he also tried to mine a piece of Xuanjing, but he didn't expect that it would take ten minutes to mine a piece of Xuanjing. Finding that mining Xuanjing was so time-consuming, Mo Xuan went to wander around in the distance on the grounds that he couldn't learn.

The tenth concubine knew Mo Xuan's true purpose, and she didn't stop it, but only let him act carefully.

After a big circle on the blue desert, Mo Xuan didn't know how many distances he had walked, but he would find any suspicious clues. Seeing that it was still early, Mo Xuan searched into the distance again, but still found nothing.

"No, how can there be nothing? no matter how clean the action is, it has to leave a trace. Could it be that there is something under this desert, so I can't find it?" Mo Xuan touched his chin, fell into thought, and then suddenly said: "By the way, it's a seal, there is definitely a seal under this desert." ”

Mo Xuan smiled, and then frowned again. "If it's really a seal, then it's a curse, the seal that can suppress the beast is absolutely extraordinary, even if I find the seal now, with my current ability, it can't be unlocked. ”

Mo Xuan was very embarrassed, and after thinking about it, there was no way, so he didn't think about it anymore and went back directly.

Back in the team, the tenth concubine took the lead in casting a vague gaze, Mo Xuan saw it, shook his head slightly, and the tenth concubine withdrew her eyes, her face was still cold, and she didn't know what she was thinking.

"It's getting late, let's all go back, there is probably no treasure in this place, and we won't be here tomorrow." The tenth concubine stood up and put away the Xuanjing she had collected.

Xinglang and Xiaosan also came over. Xiao San said with a smile: "Today's luck is not bad, I have picked one hundred and ten Xuan Crystals, which is enough to go to the Xuan Rank Pagoda to cultivate for an hour." ”

Xinglang looked dissatisfied and complained: "I will never come to this place again in the future, I was busy for a long time to get a hundred Xuanjing, this money is not enough for me to be tired, if I don't come, I will never come again." ”

"Hehe, it's not me bragging, Xuanjing is my home field, and you definitely can't beat me here. He smiled, and Xinglang's eyes were already lit with fire.

Mo Xuan smiled helplessly, and the quarrel between the two was about to start again.

Seeing Xiao and Xing, the tenth concubine shook her head helplessly and said: "It's not early, let's go back quickly, we didn't bring anything with us when we came out today, if we go back late, we can only stay in the desert overnight." ”

"Then let's get out of here. Xinglang glanced at Xiaosan, didn't bother with the latter, and took the lead to return.

Xinglang's concession made De Xiaosan even more happy, and hurriedly followed, his face full of pride.

"Stay at the door, I'll go find you. The tenth concubine followed closely behind, and when she passed by Mo Xuan's side, she quietly spit out a sentence.

Looking at the back of the tenth concubine, Mo Xuan's eyes narrowed slightly, and he couldn't help but be curious about the former. "You're not very old, but you're so cautious in doing things, it seems that your background is also very unusual. ”

Thinking in his heart, Mo Xuan didn't delve into it, and hurriedly followed the large army and left this blue desert.

"By the way, Brother Xiaosan, where is the 'sand castle' you talked about yesterday, can you take me to see it when you go back?"

"No problem, in fact, the sandcastle is not too far from the academy, we just stopped by when we go back, and I'll show you when we get there." Said with a smile.

"Well, good. Mo Xuan responded.

On the way back, because it was dark, the four of them all sped up, and after about half an hour, they could already see the faint light flowing from the large array of the Barren Academy.

"Here we are, Brother Xuanying, this is the sandcastle. When he saw the large array of the nursing home just now, Xiaosan suddenly spoke.

Following the direction that Xiao San was pointing, Mo Xuan saw a fortress dug out of a huge sand dune not far away. The fortress wasn't too big, and there was only one room outside the dunes, and it was so dark inside that nothing could be seen. The gate of the fortress was locked by a dark iron chain, and it seemed that there should be no one inside.

"The door is locked, and it looks like the teachers have gone back to the academy. I don't think we'll stay here anymore, let's go back quickly. Xiaosan urged.

Mo Xuan thought about it and felt that it was better not to touch here for the time being, so as not to let others find out, so he also nodded in agreement: "Okay, since there is no one, let's go back first." ”

"Okay, then hurry up, I'm dying of hunger. "Happy, with a lot of strength under his feet, he rushed directly towards the academy.

"You kid ran so fast, you were in a hurry to reincarnate. Xinglang scolded, and also ran over quickly, and saw it, and once again sped up to get rid of Xinglang, and Xinglang did not show weakness. The two of you chased after me, and before you knew it, they were comparing their speeds.

Mo Xuan and the Ten Concubines glanced at each other, expressing helplessness. The two mobilized their source qi, poured it into their legs, and each performed a starting method to chase after him quickly. Degree of literature