The limit depth of a spare probe is 60 zhang, if you continue to fight, you must add one, and the price of each probe is about 100 times. If you can detect the aura, add one and add one, Gu Zuo didn't say anything, it was okay to add two or three, but in the case of the No. 1 pit being vented at a depth of 40 zhang, the No. 2 pit was 60 zhang out, which was very problematic.

With or without addition, the hard work of three days in the No. 2 pit was in vain. Plus, maybe it will continue to be in vain.

Gu Zuo instructed: "Take the magic armor, I'll go to the pit!"

Putting on the protective armor worth twenty guan and putting on the magic helmet, Gu Zuo came to the side of the No. 1 pit. The prisoner who was mining the aura at the No. 1 station in the No. 1 pit was notified and was pulled up by the hanging basket. Gu Zuo stepped into the hanging basket, accompanied by Cheng Shanhu, thought about it, and asked someone to fill a jar of light salt water, and the two were quickly put to the bottom.

The space at the bottom of the pit is relatively crowded, and the spiritual pressure is extremely large, fortunately, there is a magic armor to resist, and the feeling is not so strong, but as soon as I landed, I still felt that my body was heavy and I couldn't breathe, as if there was an invisible weight on the top of my head and body, and I was already covered in sweat after a while.

The prisoner at the highest cultivation station in the pit has been pulled up, and the two Qi refining cultivators at the second and third stations are left, and the rest are martial artists.

Fortunately, the physical fitness of the martial artists is not lower than that of the Qi Refiners, otherwise there is really no way to go into the pit. I heard the butcher say that some sects use heavy prisoners to go to the pit, in order to save manpower expenses, they basically work three shifts in two days, unlike Huaixian Pavilion, where they work two shifts a day, and some people are not physically strong, and they have to die of exhaustion if they can't work for two or three years.

Gu Zuo felt the same way, expressed his gratitude and encouragement to the seven people, and asked Cheng Shanhu to hold the clay pot, fill the water himself, and pour a bowl for everyone.

After the small condolences were completed, the inmates at the seven stations were demoralized and returned to the work of extracting spiritual energy. Gu Zuo used the technique of chasing the camera, feeling the fluctuations of spiritual power coming from the surrounding rock walls.

After having a rough idea in his heart, he and Chengshanhu went up to the top of the pit again, and at this time, the probe rod of the No. 2 pit had reached fifty-nine zhang.

Sixty zhang, still no aura!The mining circle stopped, and everyone looked at Gu Zuo, waiting for him to make a decision.

"Probe extension. Gu Zuo ordered.

At his request, the probe expands and expands around it, forming a pit. Gu Zuo got on the hanging basket and fell straight to the bottom of the pit. At the bottom of the pit, he also felt the spiritual pressure, but it was not as big as in the No. 1 pit. Having spiritual pressure does not mean that you can play out the aura, it just means that this place is indeed in the aura zone.

The key is to hit the mine's eye!

Gu Zuo performed the technique of chasing photography, comparing the feedback felt in the sea of qi with the No. 1 pit, and after about a stick of incense, he returned to the top of the pit in a hanging basket.

"Pole on!" he made his decision without hesitation.

A probe rod was sent over and connected to the mining circle, and the probe began to rotate and continue to pierce down.

Sixty-one zhang, sixty-five zhang, seventy zhang......

Suddenly, just like the air at the spout after hot water is boiled, a trace of true qi came out of the probe rod, and the No. 2 pit burst out of the aura!

Cheers rang out again from the mining site.

On February 14, the No. 2 pit was gassed, harvesting 180 pieces and producing 18 spirit stones.

The next day, twenty-eight spirit stones were produced.

On the third day, thirty-nine spirit stones were produced.

On the fourth day, forty-three spirit stones were produced.

Since then, the output has gradually stabilized at around 45 pieces. This shows that the upper limit of the annual production of the No. 2 pit is 16,400 spirit stones, and the actual median production may be around 14,000.

It is also a pit with an annual output of more than 10,000 yuan, and the two pits are added together, and the actual output of the spiritual stone vein in Nanwu Mountain reaches 30,000 pieces.

The annual tax and collection in Nanwu Prefecture is 30,000 spirit stones plus 10,000 guan, and the output of the two pits can wipe out the burden of 30,000 spirit stones, and the remaining 10,000 guan depends on the last pit.

Before opening the pit, Gu Zuo asked Cheng Shanhu to compile a list of mining tools, and on this list, the number of twenty-nine kinds of consumables was indicated. Everything else is fine, but there are two that need to be considered.

One of them is the probe, which was equipped with nine when the circle was purchased, and three have been consumed so far.

The second is the protective armor, which is given 16 sets of kits, all of which are currently used up. The Fa Jia was not in the Dharma Circle in the first place, and the Hua Xi Xuan faction did not give this batch of Fa Fa Armor enough, Gu Zuo couldn't complain about others, he could only blame his own family for not having mining experience, and the preparations were not in place.

Gao Changjiang was already fully able to take the position of the host of the magic circle, so Gu Zuo asked him to take over from the butcher and take charge of the three-element extreme true magic circle, and he took the butcher's double axe, and the two went to Luofu County to purchase.

On the way, Gu Zuo was in a very happy mood, looked at the white clouds that seemed to be within reach above, and asked the butcher: "Senior brother, can you fly higher, let's go to the clouds to have a look?"

The butcher rolled his eyes: "I'm only in the early stage of Jindan, and it's almost enough to reach eighty zhang, not to mention that this is not very good for axes." ”

Gu Zuo immediately promised: "Go back and find time to change the magic weapon for the senior brother, this pair of axes is indeed broken." ”

The butcher said: "How many times have you said this? Okay, let's take care of the mine first, and mine the spirit stone, which is better than anything else." ”

After half a day's work, the two landed outside the city of Luofu County, collected the magic weapons and walked into the city on foot. came to Longquan Taoist Temple first, but the guest hall Taoist priest in the gatehouse said that Wu Shanjing had returned to Chang'an.

Gu Zuo asked again, but the little Taoist priest had a low position, but he couldn't answer, so Gu Zuo begged to see Yuan Mentou of the guest hall. When the Southern Wuzhou auction was made that day, Wu Shanjing brought a door head and a hall master to the county town of Montenegro to make preliminary preparations, Yuan Mentou was one of them, and at that time he also offered to buy a batch of sperm preservation pills for the colleagues of Longquan Daoist Academy, and this business was also closed, but I don't know how to take it, of course, Gu Zuo was embarrassed to ask.

Yuan Mentou received Gu Zuo very politely, and he told Gu Zuo that Wu Shanjing had been transferred back to Chang'an by the Chongxuan Administration, and there might not be too many opportunities to come to Nanzhao in the future.

In this regard, Gu Zuo was very worried.

Gu Zuo also wanted to meet with the prison and Sandu, who had a relationship with each other at the bidding meeting, and report to them the progress of the mining of the Lingshi vein in Nanwu Prefecture, but was told by Yuan Mentou that several Taoist leaders were not in Luofu County, and they went to southern Xinjiang.

"All went to southern Xinjiang?" Gu Zuo was slightly surprised.

"All, the eight deacons of the Taoist Academy also followed. Yuan Mentou confirmed.

"Is there something big going on in Southern Xinjiang?" Gu Zuo has been in the mountains of Southern Wuzhou for the past two months, and he doesn't know much about the situation in the outside world, so he hurriedly inquired at this moment.

Yuan Mentou hesitated for a moment and said, "It's still the same, the activities of the spirit beasts in Southern Xinjiang have been a little chaotic in the past two months, and the Dao Elders have gone to find out the details...... Don't worry about Pavilion Master Gu, this situation is frequent, Nanwu Prefecture is also more than 200 miles away from Southern Xinjiang, so it will not affect you. ”

Gu Zuo nodded, and when he left, he presented Yuan Mentou with a special product of Southern Wuzhou-a small wooden box, which contained eight spirit stones.

Because it was a local product and a gift from an acquaintance Gu Zuo, Yuan Mentou happily accepted it and instructed Gu Zuo: "It's good to come next time, you don't need to bring a gift." ”

Gu Zuo promised to come out, and Yuan Mentou sent him out of the Dao Academy, and when he got outside the door, he suddenly whispered: "It is better to suggest that the Gu Pavilion Master buy more food, be prepared, it is better than anything else, isn't it?"