The top of the water tower.

Cheng Han had already taken off the waterproof suit for killing fish at this time, put down the bloody killing knife, and changed into the original black robe of the Xuanshi.

"Whew~"

A cold wind whistled from the top of the tower, stirring the hem of the black robe.

Lan Jiayao, the master of the hall, stared at this scene, and her beautiful eyes flickered for a short moment.

The female Xuanshi was a little incredulous in her heart that these two completely different characters would overlap on the same person.

Lan Jiayao showed a somewhat cold smile: "Special Envoy Cheng, you seem to like to stay with ordinary people?" ”

Originally, she planned to directly discuss the promotion of the method of "poisonous spore insecticide", but a series of experiences made her suddenly change her mind.

The other party is by no means an idle mystery, and it is best not to take out the usual means.

Cheng Han's expression was a little strange: "A year ago, I was just an ordinary person. ”

He stood still on the edge, looking down at the crowd below, and said, "Even now, I don't feel any different from them. ”

Lan Jiayao felt more and more strange, how could there be no difference between Xuanshi and ordinary people?

It's just that she didn't refute it.

This master wanted to talk a few words about her experience as an ordinary person, but the long time of more than a hundred years washed away her memory, and she couldn't remember much.

The female Xuanshi decisively changed the topic: "Special Envoy Cheng, you should have other intentions when you moved to Lanbo Lake, right?" ”

This is speculation.

She had seen strange things such as withered flowers on railings and fishing in water towers, and began to think that the other party was a thoughtful person, and most of his actions had other meanings.

Sure enough!

Cheng Han said: "Of course! ”

He directly stated his intentions: "Lake Lanbo is a good place to build a ship. ”

This answer greatly exceeded Lan Jiayao's expectations.

She asked, a little surprised, "What does shipbuilding do?" The area of Lanbo Lake is only so large that even if there are boats, it will not be able to use it. ”

Cheng Han's next sentence shocked the female Xuanshi fiercely.

"The boat I want to build, of course, is not for Lake Lanpo, we are at war with another world, and I heard that there is a water world over there."

The other world is naturally the Hidden Miao Realm.

Lan Jiayao was so surprised that her voice was a little distorted: "Envoy Cheng, you want to build a ship for another world?" ”

Cheng Han suddenly changed the subject: "It is said that the soldiers and civilians who went to that world all live on the surface of a giant plant called 'Tianye Lotus'. ”

The female Xuanshi nodded: "That's true." ”

The so-called "Tianye Lotus" is a super plant shaped like a water lily, with a diameter of more than 50 kilometers, and its float on the surface of the water is comparable to an island.

Cheng Han talked eloquently: "The transportation between different Tianye lotuses mainly relies on large and small 'driftwood boats', but they are often frantically eaten by large groups of underwater creatures.

"I've also heard that the damage rate of driftwood boats is quite alarming, and I don't know how many soldiers and civilians have lost their lives in vain."

Lan Jiayao was silent for a moment before saying, "After the development period, the situation will improve greatly." ”

Cheng Han got to the point: "When I was building the stone tower yesterday, I developed a way to build a ship out of stone, which should be more resistant to the bite of underwater creatures than driftwood boats. ”

In this world, human beings live on the Banyan Spirit Leaf, and due to environmental constraints, shipbuilding technology is really weak.

Some time ago, he had heard about all kinds of tragedies on the front line of the war in the Xuan Palace, and he had long had the idea of building ships in his heart.

The female master asked stupidly, "How do you build a stone ship?" Won't it sink? ”

Cheng Han shook his head and laughed: "Of course not!" As long as you use the occult method to do a little special treatment, it can float steadily on the surface of the water. ”

As he spoke, he scratched at the ground.

"Cards!"

Just hear a soft sound.

A huge five-meter-long stone bar, that is, the huge brick for building the water tower, suddenly floated up and suspended in front of the two of them.

Lan Jiayao looked at this scene and did not speak.

Cheng Han smiled: "This stone has been processed. ”

With a movement of his right hand, the stone bar flew out immediately, and quickly fell into the water tower, hitting the surface of the water with a heavy impact.

"Whoa!"

A large wave of water splattered.

The next second.

Because the large stone bar rises and falls with the waves of the water, and there is no sign of sinking, like a piece of wood.

Lan Jiayao blurted out: "What's going on?" ”

The female Xuanshi immediately checked it with a secret method, and suddenly realized: "I understand!" The stone has a large number of pores and is much lighter than it seems. ”

Cheng Han smiled: "That's right! ”

This stone is lighter than wood, which is actually the principle of foam.

In another time and space, it is quite difficult to get such an effect, but in this world, the occult method can easily do this.

Cheng Han pointed to his feet: "Stones are everywhere, and the materials are inexhaustible, and the thickness of the hull can be made to five or six meters thick or even more, which can effectively resist gnawing."

"The internal combustion engine used by the poisonous spore to kill insects is actually an excellent power to drive the ship, as long as it is equipped with the propeller, it can propel the stone ship forward."

The above is the specific plan of shipbuilding.

Another important purpose is to find more applications for the Kemo internal combustion engine, so that the senior leaders can see the specific role of this thing.

The so-called "change" is to rely on one change after another, and eventually form a huge trend, and finally completely change everything.

Lan Jiayao pondered for a few seconds, and said seriously: "Special Envoy Cheng, your plan is very worth trying. ”

The "very worthwhile" in this sentence means that the master of the palace is moved.

There is no other reason.

If the stone ship proved to be of great use, it would be a great achievement.

And the credit, who doesn't like it?

Cheng Han laughed and made a direct request: "I need more craftsmen." ”

He paused for a moment and added, "The more the merrier." ”

Lan Jiayao gave a promise: "I will do my best to solve this matter." ”

Meanwhile.

The female Xuanshi's heart was full of emotion.

Everyone thought that Special Envoy Cheng was fooling around when he came here, who knew that he was quietly playing a big game of chess.

Lan Jiayao took the opportunity to say what she meant: "The method of poison spore killing insects is very clever, and the Xuan Palace hopes to promote it to the various small spirit realms of its subordinates, which is also the responsibility of the Tianrong Palace. ”

Cheng Han immediately replied with a promise: "I will try my best to cooperate." ”

For him, it's just a trifle.

Isn't it just to make hundreds or thousands of Kemo internal combustion engines, and then let the Spirit Oak Demon produce a large number of poisonous spore balls?

It's simple.

The demand for internal combustion engines has increased greatly, and taking advantage of this opportunity, we can also promote industrial assembly line manufacturing and accumulate relevant experience.

In a word.

That's a good thing.

*

Half an hour later.

Lan Jiayao hurriedly entered Jinshan Palace.

The plan of the stone ship is not a trivial matter, if it is successfully verified, not only the Tianrong Palace, but even the entire Xuan Palace will benefit a lot.

Therefore.

It is necessary to report it to the palace master.

Soon.

The female Xuanshi saw the palace master Yun Changtian again and reported the matter in detail.

After finishing speaking, Lan Jiayao couldn't help but add: "Palace Master, this matter may be a considerable opportunity for the Xuan Palace. ”

The Cloud Palace Lord naturally understood the benefits, and said categorically: "You and Cheng Han let go of this matter, if you have any difficulties, you can come to me at any time!" ”

Xuandu thought for a while, and then said: "Huanlan Mountain will be assigned to the Tianrong Palace, and Cheng Han will have full jurisdiction." ”

Thereupon.

Without the knowledge of a special envoy, he had another piece of land under his name.

Lan Jiayao responded excitedly: "Understood! ”

This moment.

The female Xuanshi felt from the bottom of her heart that taking over the position of the head of the Tianrong Hall was really the wisest decision in her life.

Not one of them!