Now Lu Yu is faced with two choices.

Either you just dry the pool or you go in.

He first asked Xiao Ruan to take him to the waterfall to study whether the waterway could be rerouted, and then found that this thing was really impossible, after all, the deep pool was a low-lying terrain, even if the river water could really be diverted, the groundwater would seep out directly, and it would not be emptied.

Then there is only one other option left, which is to go in.

In fact, the matter of getting in is not so difficult for Lu Yu.

At least it's much simpler than changing the course of the river.

Cool p craftsman network (positive #~ version) first 8 z (

With an order, Xiao Ruan began to cut wood around and then build houses, and Lu Yu built a furnace by himself, extracted the active ingredients in the soil, and began refining glass.

This kind of thing he wanted to do for a long time, but really...... It can't be done, or it's useless to do it.

Glass this kind of thing, only when it becomes smooth and flat, has its role and significance, in short, is a cheap crystal substitute, after all, if it can be smooth and flat, that kind of technology is not so simple, can do this, you can easily grind the crystal into a smooth needle!

In the previous life, the world of extremely advanced technology was only made in the nineteenth century, and everything before that was not only not translucent, but also uneven, and could only be used for the cheapest bottles.

So this matter is actually very difficult, Lu Yu doesn't think that he, a guy who only knows theory, can really develop it, the key is...... Even if it is made, the meaning and effect are not very large. If you make some extremely high-grade utensils, then whether it is wine utensils or something else, in fact, the level of cultivator refining tools is much higher than this, they can make more perfect things, and even Lu Yu has seen statues carved with spar splicing, which are very magnificent.

If it is used for ordinary people, then in the continent where the three-year-old doll can lift a thousand pounds of weight, it is really a very fragile and fragile thing, destined not to be cheap, destined to be very fragile, and destined to be used by no one.

So, Lu Yu didn't even think about it before.

But now it's different, because he needs it.

It doesn't need to be so flat and smooth, it just needs to be big enough, thick enough, and airtight enough!

His idea was to make a very long, long tube, with a big ball underneath, Lu Yu followed the pipe and hid in the ball, and then Xiao Ruan grabbed the pipe on the shore, and Lu Yu could use his vision to look for it in the deep pool.

But this one is also difficult.

So, a group of people lived by this deep pool, and they also built a simple house like Xiao Ruan, because they didn't know when Lu Yu would finish, and Lu Yu at least provided food, so they were not in a hurry, and they built the house very well, and they didn't pay attention to coping.

In this way, more than ten days passed quietly.

Lu Yu finally came up with a 'finished product', but there was still a big gap between the gloss and flatness and the imagination, drilling inside and looking outside, there were only two or three very small positions, which could reflect the outside things 'without deformation' in Lu Yu's eyes, and the rest of the place, either you couldn't see anything, or you couldn't see it anymore.

This is already Lu Yu's limit.

In desperation, he could only use so many resources for the time being to continue his plan.

"Put, put! That's right, that's it, slow down. ”

Following Lu Yu's order, Xiao Ruan held the pipe tightly and put the glass ball that Lu Yu was in into the pool of water.

She was extremely careful in this process, for fear that Lu Yu would be knocked away by this pool of water again, until the ball squeezed the water surface and took Lu Yu down successfully, Xiao Ruan's heart relaxed, but the action was still extremely careful, because she knew that the transparent thing in her hand was not very strong.

Lu Yu went down to the water, squinting his eyes and carefully observing the surroundings.

This deep pool is very deep, but not so deep, and with a flick of his hand, a spirit stone is activated by him, acting as a searchlight, illuminating the surroundings.

It turned out that he saw that the surrounding areas of this pool of water were relatively shallow, and he could see the stones below, but in the center, it was indeed black, not because the water there was dark, but because it was ...... In itself it will be very deep here.

Sure enough, following the hole at the bottom of the pool, Lu Yu kept moving forward, but after going down to a distance of about twenty meters, he immediately encountered a problem.

The pipe had reached its limit, and Xiao Ruan's hand was already close to the water, and this thing couldn't take any further steps.

But Lu Yu obviously hasn't finished yet!

What can I do?

In particular, the buoyancy of this whole set of equipment borne by Xiao Ruan's hands may also fly Xiao Ruan into the sky at any time.

Gritting his teeth, Lu Yu made an extremely bold decision.

He first climbed up from the pipe, climbed to the mouth of the pipe, and said to Xiao Ruan: "After a while, I will shake it three times, and you will let go." ”

"How's that going to work?!"

Xiao Ruan was taken aback when he heard this.

"Don't worry, I know in my heart, don't talk about this one pool, even the underworld, I don't come and go freely? ”

This still didn't convince Xiao Ruan, but it didn't affect Xiao Ruan to do what Lu Yu told him, after all, these are two different things, the former Xiao Ruan is as Lu Yu's lover, and the latter is as Lu Yu's maid.

She just has these two identities, even if neither of them wants to face them, but the facts exist, and it is difficult to change.

Lu Yu didn't go back to the bottom directly, but first used some leftover glass to waste it at the 'mouth of the bottle' and seal it.

Then go down, directly take out a large pile of gold from the small world, carefully and evenly place it at the bottom of the bottle, and sure enough, as soon as the weight comes, the bottle slowly descends.

When he wants to go up, as long as he gets the gold into the small world again, the bottle will be lighter, and it will naturally float, so simple.

This made him can't help but sigh, it is so convenient to use the small world.

All the way down, very long, according to Lu Yu's estimate, at least it has descended a distance of about eight or nine hundred meters, close to a kilometer, but the nearby is still that kind of 'well'-like structure, there is no change.

This made Lu Yu look a little anxious, so he took out some gold again, so that the speed of the bottle's descent was significantly faster.

And during this whole process, he really didn't dare to move, the first thing to do was to maintain a balance.

The pipe was very long, and he regretted it a little, what did he do with such a long pipe? If he knew that he wanted to do this, it would be better to just get a ball.

Now, if there is an imbalance, the pipe will definitely hit the stone wall, then as soon as the pipe is broken, the 'electric water' outside will immediately pour in, and Lu Yu will definitely be electrocuted on the spot.

So overall, Lu Yu is 'playing' very exciting now!

His nerves tensed, and he paid attention to everything around him.

Until......

Sinking 1,200 meters, this is already a very thick bottle, and it is finally a little overwhelmed, and it is pressed by the water and makes some not very good sounds, when Lu Yu is ready to 'return' immediately......

The scenery in front of him suddenly changed, and a 'black light' lit up not far below.

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