"Hehe, Lu Lao, long time no see!"

Yang Dong smiled and arched his hand.

"Tell me, come to the old man, is there anything new?"

"The boiling water you mentioned last time is indeed an interesting thing, but it's a pity...... Until now, the old man has not found a material with the corresponding strength. The old man sent a lot of people to Yunzhou, but they didn't find anything. ”

"If Yunzhou is further south, it is full of miasma, and it is not possible for manpower to set foot on it."

Yang Dong pondered for a moment, after all, he had only seen the steam engine in the history books.

However, this did not prevent him from pointing out a general idea.

"Lu Lao, have you ever thought of a different method, if you make a separate cylinder, and then separate the steam and introduce it into the cylinder......

When Lu Lao heard this, he jumped up from the recliner at once, his eyes widened, and his hands danced.

"Yang Dong, you are really a genius!"

"How did you come up with such a brilliant idea?"

"It's just that if the cylinder is driven alone, how can it output stable energy?"

Lu Lao scratched his gray hair, and stared at Yang Dong as if he was staring at a rare treasure.

"Lu Lao has heard of piston movement?"

Under Yang Dong's simple explanation, Lu Lao's eyes became brighter and brighter.

If it weren't for Yang Dong still being there at this moment, he would even want to roll up his sleeves and go to the workshop to try it.

"By the way, Lu Lao, in terms of firearms, what progress has been made recently?"

Lu Lao bowed his head lightly,

"Under the research and development of the old man, the strength of the steel in Dazhou has increased several times one after another, which can already meet your previous assumptions."

"It's a pity that the accuracy is not enough, and you can't pierce Yang with an arrow from a hundred steps away as you described."

Speaking of this, Lu Lao patted his head and immediately recruited an apprentice:

"You, go and fetch the treasure that the old man personally built before!"

When the apprentice heard this, he quickly fetched a wooden box from an iron shelf.

Elder Lu handed the wooden box to Yang Dong and said calmly:

"Although firearms were not made, the old man discovered another use for gunpowder."

"In a short period of time, gunpowder has extremely explosive power, and if it is supplemented by sharp weapons such as steel balls, it can cause huge lethality in an instant."

"The old man has tried it, this lethality, if it is encountered head-on, even if it is a great martial artist, it may hurt his life."

When Yang Dong heard this, his expression couldn't help but be happy.

Something that can hurt a great martial artist, this is a rare treasure.

He is now the cultivation of a great martial artist, and in his eyes, those so-called divine weapons in the world can no longer hurt him in the slightest.

Now that there is such a divine object, it took a lot of thought to think about Lu Lao.

Yang Dong immediately opened the wooden box, but in the next second, the expression on his face suddenly froze.

In the wooden box, a triangular object made of 100 steels was quietly laid.

At the very front of it, there is a black hole.

Although this appearance was completely different from the object in his mind, Yang Dong recognized it at once.

This Nima seems to be a troll!

On the other hand, Lu Lao began to proudly talk about the specific use methods for Yang Dong.

About half an hour later, Yang Dong completely mastered its usage.

Actually, it's not that difficult, but it's just that it's used and swung forward for too long.

The specific operation is somewhat similar to the earliest flintlock pistol, and perhaps the technology has developed to a certain extent, and there will always be certain similarities.

After telling Lu Lao some of the ideas in his mind, Yang Dong turned around and left the Cold Palace Factory.

When he returned to the small building of the West Factory, he suddenly felt a resentful gaze.

Yang Dong opened his mouth, and the next moment, Yao Jia threw himself into Yang Dong's arms like a milk swallow.

"Yang Gong, why don't you take Xiao Jia with you to serve these days, but you are disgusted with the slave family?"

Looking at those big watery eyes, Yang Dong was as tender as water at the moment.

He patted Yao Jia's back helplessly and comforted softly:

"Silly girl, something happened in the capital a few days ago, and I took you with me, and I was worried about your safety, so I left you in the army. Only in this way will I have no worries. ”

Hearing this, Yao Jia's big watery eyes began to redden.

"But, but ......"

"Yang Gong, do you know? The slave maid just wants to be by Yang Gong's side, even if there is danger, the slave and maid are not afraid! ”

As she spoke, her pretty face was already flushed.

Yang Dong chuckled and knocked on her head with his backhand.

"Silly girl, what's there to think about here."

"That's it, since you are so reluctant to go with your father, then this long trip, let's go with my father."

"Huh??"

Yao Jia opened her mouth, and a flash of surprise flashed in her eyes.

"Yang Gong, didn't you just return to the capital not long ago, why did you have to travel so far away in such a hurry?"

"Hey, you think my father is willing."

Yang Dong sighed softly, and then said:

"But in the current situation of Da Zhou, there are not many people who can do things. As the saying goes, those who can work harder, there is no way, your Yang Gong is too good. ”

"Mmmm, Yang Gong is the best!"

Yao Jia immediately tapped her head and looked at Yang Dong's eyes, which were full of little stars.

Yang Dong sighed helplessly,

This girl seems to be terminally ill.

……

Leaning on his golden silk nanmu chair tiredly,

Yang Dong's gaze swept out of the window, looking at the sky in the distance, and was silent for a long time.

I don't know when, he actually fell asleep gently.

Yang Dong slept very deeply, in fact, he had been in a state of mental tension for many days.

After all, in the face of an old fox like Lin Chunqiu, any negligence may lead to a complete loss.

Although in the end, he won this game, but there were also many surprises.

Just as Yang Dong was sleeping and thinking, his body trembled violently, and then woke up.

The next moment, the scene in front of him changed drastically!

The capital of the Great Zhou was surrounded by raging fire!

The sky is fiery red! Everywhere you can hear the cries and cries for help of the people.

Yang Dong watched as a burning beam fell and slammed into a woman with a baby in her arms.

He wanted to save people, but found that the burning beams had easily passed through his palm.

Is this a dream?

Yang Dong frowned and began to seriously look at his surroundings.

At this moment, his pupils froze slightly.

At the extreme of his line of sight, there was a monster several feet high, massacring the people who were fleeing in a hurry.

Those...... What exactly?

Yang Dong frowned, with his understanding of Da Zhou, such a monster had never appeared in this land.