Long Tianci and Xiao Hei standing at the entrance of the cave opened their mouths and looked around foolishly. They didn't say a word for a long time. Finally, Xiao Hei first said, "boss, this is an... Underground city?"

Long Tianci didn't answer Xiao Hei's answer, but just stared around. Xiao Hei was right. This is a huge underground city. Its scale is four or five times larger than the area of the three eye clan dungeon previously found by long Tianci in the heart of the dark sea desert. Moreover, this cave is not only large in horizontal and vertical width, but also exaggerated in vertical depth.

The buildings of the whole cave * * are very scattered. Obviously, when building, the builders took into account the structure in the cave and designed it specially. All buildings are built in a relatively flat position in the cave, and some are even built on a raised huge rock. Therefore, although the scale of the city is very huge, it is not very regular, but very messy.

It seems that all the building materials are made locally. Most of the structures are made of rock, with a small amount of wood and some huge animal bones, so the shape is particularly simple. Fortunately, this structure should be very strong and will not withstand the wind, sun and rain underground. Therefore, these buildings have been well preserved for so many years. Another thing is that all these buildings have no roof, Maybe it's also to save trouble?

After being stunned for a while, long Tianci recovered. Then he turned to Xiao hei and said, "let's go down and have a look. This should be the underground city where the Gu clan lived in those years!"

Xiao Hei nodded after hearing what long Tianci said, and then followed long Tianci along the road outside the cave to the city below. This time they really saw something wonderful.

When they really entered the city, long Tianci and Xiao Hei felt that the underground cave was really big. From above, although the buildings were very scattered, the distance was not very far, but when they were close, they found that the distance between each building was at least two or three hundred meters, and even more than five hundred meters. Long Tianci wondered, The house is so far away. It must be inconvenient for people to communicate when Gu people lived here!

But from another point of view, people of the Gu clan focus on refining Gu. Everyone's methods of refining Gu may be different. Maybe this is also to keep their secrets of refining Gu?

Looking around, long Tianci and Xiao Hei didn't find any signs of living creatures. The whole city was dead, but it's no surprise that it has been abandoned for thousands of years!

Out of curiosity, long Tianci and Xiao Hei entered a stone house close to them. Each building area here is not small, with an average of 200 square meters away, so it is particularly huge. Although there is no roof, the house is equipped with stone doors. Long Tianci slowly pushed open the stone doors, and then walked into the dust laden Gu clan ruins for thousands of years!

The structure of the whole stone house is very simple. There is no independent room. The whole space is integrated. There is a stone bed near the door of the stone house, and then there is a stone table not far from the bed. Four boulders are placed around the table, which is estimated to replace the stool. In addition to these two kinds of furniture, there are a row of wooden shelves against the wall, There are a lot of little things on the shelf, but they don't look like living things!

There are only three kinds of furniture in such a huge room. The rest of the room is empty. There is a big pit in the center of the room. The pit is round. The diameter of the pit mouth is about three meters and the depth is four or five meters. Long Tianci went to the pit and looked inside. As a result, he found that there are a lot of debris in the mess, and he doesn't know what's left.

After studying the big pit, long Tianci didn't understand what the pit was, so he gave up. Then long Tianci turned to look at the innermost part of the house, and at least forty or fifty huge jars were placed near the corner of the wall. These jars were one meter high, narrow bottom and big belly. Each jar had a seal, and a note was pasted on these jars, Unfortunately, for too long, these papers are oxidized, so I can't see what's written on them!

Long Tianci came to a huge jar and carefully pulled down the stopper used to seal the jar. While the stopper was pulled down, there was a pungent smell in the jar and a smell similar to mint. This mixed smell was really pungent. Long Tianci felt a sour feeling straight to his head after smelling the smell, Subconsciously, long Tianci covered his nose and took two steps back, while Xiao Hei turned around and ran out of the house after smelling the smell. With his smell, the smell can be said to be fatal to him, that is, he runs fast, otherwise he may be smoked to death!

It took long Tianci a while to regain his courage and look at the huge jar again. But this time, long Tianci learned to be smart and held his breath when looking at the past. Unfortunately, the jar was too dark to see anything clearly!

After a little hesitation, long Tianci reached out and grabbed the bottom of the jar. Then he held the jar mouth with his other hand. Then long Tianci raised the jar with his arms. Then the jar mouth shook down.

With the shaking of dragon heaven's gift, a lot of even seven or eight bad things fell out of the jar. These things are dark because they have been put for too long. Fortunately, the shape is still intact and can roughly distinguish what they are!

There are some insect remains and some herbs in these things. When long Tianci saw these things, he thought that this jar should be the Gu cup used by the insect master of the Gu family to refine Gu. Long Tianci once saw the process of refining Gu in his book. The principle is that the weak eat the strong. The insect master will put some poisonous insects and poisons in the Gu cup together, and then let these poisonous insects devour each other, When there is one left, the insect will be refined!

Looking at the dozens of huge jars in front of him, long Tianci sighed in his heart. These Gu families really like this mouth and have prepared so many Gu cups. How many can they produce at one time if they are all put into poisonous insects to refine Gu?

After staring at these jars for a while, long Tianci looked back at the big pit. He seemed to understand what the big pit was for. The big pit should also be a kind of poison cup, but what was refined here was not those small insects, but huge poisons. As for the damage at the bottom of the pit, it must be the remains of those poisons!

Just as long Tianci stared at the things in the house and was still meditating, Xiao Hei shouted outside the house: "boss! Are you all right? Come out quickly, or you will be smoked to death inside! I found a strange thing. Come and have a look!"

Hearing Xiao Hei's cry, long Tianci promised. Then he turned and walked outside the house. When he was about to go out, long Tianci looked back at the house and then left. He didn't have any nostalgia for the house, but he always felt that something was wrong in the house. Unfortunately, he couldn't tell what was wrong for a moment!