This sea ship is very huge, with a total of nine floors. The whole is built of some kind of spiritual wood. It has a defensive formation, and the driving is also driven by a formation, and there are defensive weapons.

So, strictly speaking, this is a warship, a warship on the side of the immortal cultivation, and a warship.

But that's all. If you really encounter a few Jindan-stage cultivators siege, it's only a matter of time to be demolished, and this war immortal ship is not suitable for use as a submarine.

Because this ship is made of wood after all, not only has great buoyancy, but its appearance is not hard enough.

But as long as you go through some transformations, all the structures outside are removed and replaced with the hardest spiritual steel, it is possible to transform them into a submarine that can penetrate directly into the trench.

In this way, Lu Pingxi and his team can own a submarine that can only pass through the thirty-fifth floor from the 21st floor. They will directly use this submarine as a stronghold, and they will not have to find a new island every time they arrive at the new floor.

Su Yu, I got it: "Boss, how do you want to transform this sea boat? Do I need to go to the lower level to find the United Army to design the drawings?"

Lu Pingxi said: "No, I have been on this twenty-first floor for more than a year. I have investigated many sea boats and many immortal side creatures. I understand how to use formations to create submarines suitable for this world."

Su Yu asked again: "If you can build a submarine, we may need a lot of steel."

Lu Pingxi nodded: "It's okay, do you remember the Fire Crystal Sword I gave you? There are also many spiritual iron ore in the places where I found the Fire Crystal Mine, and I can't count them. Because it's just treasure materials, I don't like it. However, in order to build a submarine, these treasure materials happen to be very useful. You only need to find another batch of spiritual coal mines, which will start the era of large steelmaking."

The highway dude didn't find it strange, because it was normal for the Jindan stage monks to look down on them. The Jindan stage monks basically used spiritual materials, and only the Foundation Establishment stage would use treasure materials.

There is no steel in this immortal tower at all. The reason is that the steel is not produced in nature, but is produced by smelting iron into steel. However, the immortal tower does not study the subject of chemistry and does not make steel. For them, forging is very simple, just use their own spiritual fire to calcinate it.

"And," Lu Pingxi continued, "I can add some metal elements to this spiritual steel and then make an alloy!"

Alloys are a more powerful material. If you make it well, you may be able to artificially synthesize spiritual materials!

But I definitely don’t believe it when using Fire Crystal Ores, because the water attribute spiritual energy here is too rich, so the combined attack of Fire Crystal Ores is not suitable for use as a submarine.

Lu Pingxi immediately said: "We searched all the sea ship immediately. As a stronghold of such a huge organization as the Haixian Pavilion, there must be many useful things hidden inside."

Su Yu and the expressway breeze immediately entered the sea boat and began to search.

The Sea Fairy Pavilion is a very famous force on this twenty-first floor. First of all, they come from the ocean, so the sea monsters will not do anything to them. Because the water attributes here are rich in spiritual energy, and they are above the ocean and belong to their home court, there are not many forces that have just opposed them.

Secondly, they are too familiar with these twenty-one layers, so they know where there are treasures and where there are good refining materials.

It can be said that this half-medium island-sized sea ship may store more materials than all materials on a medium-sized island.

Sure enough, under the search of Su Yu and the expressway, they searched for countless rare treasures.

There are precious refining materials, precious magic weapons, precious elixirs, precious talismans, and precious ingredients.

The most important thing is that Su Yu and the others also found a warehouse of ice crystal mines!

Su Yu was overjoyed and said, "Boss, are these ice crystal ores enough for us to use? It may not be enough to make shells, but it may be enough if they are combined into alloys!"

Lu Pingxi nodded: "That's right, it's better to make submarines with water attributes."

Ice crystal ore is a spiritual material of the same level as the Fire Crystal Ore, but in these ten layers, Fire Crystal Ore is much more precious than Ice Crystal Ore.

The reason is that the water attributes here are rich in spiritual energy, so there are many ice crystal ores, almost as many as treasure materials, so they are not very valuable.

However, for Lu Pingxi, this ice crystal ore is only useful, and even if the ice crystal ore on this sea ship is not stored enough, he can still go to other places to do it.

Lu Pingxi said to Su Yu and the expressway buck deer: "Now I want to go to Yu Island to dig out all the spiritual iron ore in the seabed, and then bring it here. You guard the sea ship and start the dismantling work."

Lu Pingxi did not intend to drive the sea boat over, as it was too close to Qunxian Island, so it might attract other practitioners to peep. He would rather park the sea boat nearby and then go back to collect all the spirit iron ore.

Su Yu and the expressway bus deer are ordered.

Then, Lu Pingxi immediately rushed back to the fishing island. After returning, he immediately sank into the seabed, then found the ruined city under the sea, and came to the mine with ease.

The sea dragon began to sleep soundly in the shallow water area again, and it did not notice Lu Pingxi's arrival at all.

Lu Pingxi immediately entered the mine cave and released countless dolls to start mining the spiritual iron ore in the mine.

The way he mined was not to use the manuscript to knock on it, but to use the earth-controlling technique to separate the rocky land, then raise the spirit iron ore and put it in the storage bag.

Therefore, he mined very quickly. In just three days, he collected all the spiritual iron ore in the mine.

Then he left here again, and the sea dragon was still unaware of it. It guarded it, but unexpectedly, all the things inside were plundered by Lu Pingxi. At this moment, there was really nothing else in this mine except magma.

Lu Pingxi returned with a full load. After returning to the ship, he immediately started the reconstruction of the ship.

First, the shell of the sea ship was dismantled, and then a temporary island was built, and then a steelmaking factory and alloy manufacturing factory were immediately built.

These two factories are not difficult to build for Lu Pingxi in the Jindan stage, and the spiritual fire produced by spiritual wood is also very high in temperature and is very resistant to burning. A piece of wood is enough to burn for three days and three nights.

This factory is guarded by Su Yu, and Lu Pingxi releases a lot of dolls, which are free labor.

Later, Lu Pingxi began to design the core of the submarine.

The core of the submarine is very critical. This part is the core of the submarine. A powerful power system needs to be designed. In the future, the power of the submarine will be provided by this power system.

And this power system made Lu Pingxi difficult.
Chapter completed!