Although I don't know if the city in front of me is Nanxi City, Zhang Zichen is already very happy in his heart, if this is really Anxi City, it will be easy to do.

In this way, wouldn't Zhang Zichen be able to go back to the Human Valley to take a look at those old friends who had been absent for a long time?

Master, Master, Senior Brother, and He Huimin and others are all the objects of Zhang Zichen's concern.

Thinking of this, Zhang Zichen and Long Fei mixed in the crowd and secretly went ashore.

Although Zhang Zichen was a little nervous, he didn't need to be afraid at all, because there were so many people here, and no one would pay attention to the two little monks in dilapidated Taoist robes.

"Wow! This seafood smells so bad!"

On the shore, the fishy smell of seafood made the air very unfresh, and Long Fei almost vomited it several times.

But get used to it for a while, and it's good.

"Hey, two little brothers, let one, let one. ”

Zhang Zichen and Long Fei were walking on the port, someone behind them was carrying seafood, and when they heard the shouting, Zhang Zichen and Long Fei immediately stepped aside.

"Senior Brother Long Fei, let's go into the city and have a look. Zhang Zichen put aside the people on the port and looked up not far away, just about a kilometer away from the port, a huge city wall stood tall.

There, the city.

Long Fei nodded in response, and followed Zhang Zichen's footsteps, and the two walked quickly towards the city.

However, when Zhang Zichen and Long Fei walked under the city gate after spending a cup of tea, the two of them were immediately stunned when they saw the three big characters on the city.

It turned out that this was not the Nanxi City they imagined.

I saw that on the gate of the city, the three big characters of 'Mirage City' were engraved on the wall, which seemed to be very old, and some green moss had grown on the city wall.

"Mirage City?" Zhang Zichen raised his head, looked at it for a long time, and asked, "Senior Brother Long Fei, do you know where this is?"

"I don't know, I don't know, it looks like we're lost. "Actually, Long Fei and Zhang Zichen's situation is similar, one of them has grown up in Anxi City since they were children, and the other has just come to the Heavenly Realm from the human world, so most of them don't know about the areas and places in this Heavenly Realm.

Zhang Zichen smiled helplessly and said, "How can two adults get lost?" After we enter the city and ask around, let's see where this is. When the time comes, we plan to return to Nanxi City. ”

Zhang Zichen must go to this Nanxi City, because only by finding where Nanxi City is can he know where he is.

Only when he arrived in Nanxi City, it was quite close to the valley where humans lived, and at that time, Zhang Zichen would be able to return to the human valley.

"Well, let's go in and have a look. ”

In addition to being guarded by more than a dozen soldiers at the gate of the city, there are also people coming and going, which is extremely lively.

Zhang Zichen pulled Long Fei and entered this so-called Mirage City.

The soldiers did not stop them, did not even look at them.

Zhang Zichen and Long Fei entered the Mirage City unimpeded in this way, it seems that this is an open city.

Needless to say, the city is more lively than the outside.

As soon as you enter the city gate, the first thing that catches your eye is a long street market, lined with rows of old buildings, shops and trademark advertisements everywhere.

There are even many street vendors shouting.

Since there are shops and vendors, there are naturally people who consume, and the people here are dressed in different clothes, which seem to come from all over the world.

"Steamed buns, freshly baked steamed buns, hot steamed buns!"

"Braised pork, braised chicken, braised duck!"

"Roast meat, roast beast meat!"

Zhang Zichen and Long Fei walked above the market, watching the shouts of the shops and vendors, and their saliva flowed out.

They hadn't eaten for three months, and they only relied on absorbing some aura to maintain their body functions, and now they couldn't suppress it for a while when they saw these fragrant foods.

"Lao Jiu, eat some!"

Long Fei walked straight to a steamed bun stall, looking at the hot steamed buns inside, the smell of rice spread, making people want to stop.

Zhang Zichen swallowed his saliva and clutched his stomach, in fact, he himself was a little hungry.

At that moment, Zhang Zichen asked the middle-aged man who sold steamed buns: "Uncle, how do you sell these buns?"

The middle-aged uncle smiled and said, "Young man, let's have a few! ”

"Spirit Stone!?" Zhang Zichen was stunned, in the human world, they all rely on banknotes and gold jewelry to set the price, what is this spirit stone?

But fortunately, Long Fei seemed to see Zhang Zichen's concerns, and hurriedly asked quietly: "Lao Jiu, you don't even know what a spirit stone is, right?"

"I really don't know, and it's not in the book. "When Zhang Zichen first came to the Heavenly Realm, he lived in an isolated valley.

Later, he followed Duanmu Xue and went directly to Penglai Immortal Island.

But whether it was in the Human Valley or in Penglai Immortal Island, he had never heard of the spirit stone, and when he read books before, Zhang Zichen didn't pay attention to the spirit stone.

Under Long Fei's explanation, Zhang Zichen gradually understood.

It turns out that this so-called spirit stone is the lowest currency in the heavenly realm, and after the spirit stone, there are spirit crystals, spirit sources and true sources.

Due to the strong aura of the Heavenly Realm, there will be places where the aura gathers in many places, and in that place, it is very likely that spirit stones, spirit crystals, spirit sources, and true sources will appear.

Lingshi is a kind of jade mixed with many impurities.

Generally speaking, this kind of jade is only popular among ordinary people, and monks disdain to use it, because there is only a small amount of spiritual energy in the spirit stone, and if you can't absorb much, it will disappear.

And the purity of the spirit crystal is much greater, one spirit crystal is equivalent to the sum of the spiritual energy of a hundred spirit stones.

If it is an ordinary monk, absorbing the aura on the spirit crystal can also increase cultivation.

And the next spirit source is more expensive, if it is an average size spirit source, it is equivalent to a thousand spirit crystals.

This spiritual source is suitable for more advanced monks.

In addition to these three currencies, there is also a high-level currency called True Origin, a True Source Spirit Stone of the same level and size, which is worth 10,000 Spirit Source Stones.

Ordinary people would not have the opportunity to see this kind of high-grade True Source Spirit Stone, as they were only in the hands of many top cultivators.

Under Long Fei's explanation, Zhang Zichen not only understood the difference between the currencies of the heavenly realm, but also learned a new way to promote the level realm, it turned out that a person could absorb some stones containing high-purity aura, so as to achieve the promotion effect.

It's just that Zhang Zichen has just arrived, where is the spirit stone?

Long Fei smiled bitterly, pursed his lips, and Zhang Zichen was about to leave.

But at this time, Long Fei's mind moved: "There is!"

Zhang Zichen was stunned: "What's wrong?"

Long Fei hurriedly groped around his body, and then unexpectedly found a small transparent stone from a pocket in his crotch.