Before the house is confiscated, the enemy's warehouse is emptied and exiled

The other man looked at him in surprise, and the chief clerk lowered his voice and murmured:

"Are you sure? If you're not absolutely certain, don't speak nonsense. If you anger the general, we'll all be in trouble!"

However, Shen Qingge just smiled calmly and said comfortingly:

"Don't worry, there's no harm in letting him take a look. It's not a rare treasure anyway.

I've just carefully examined these stones, and they're not poisonous. You can pick them up without worrying about anything else!"

Hearing this, the instructor relaxed a little, but still carefully reached out his hand and gently held the stone in his hand. Then he began to study it attentively, muttering to himself:

"The texture of these stones is really hard, much harder than the ordinary stones we see every day!

Look at the densely packed potholes on it, they look like... pores!"

"What? A blowhole?"

The chief clerk beside him widened his eyes in disbelief, quickly reached out and snatched the stone away. He also examined it carefully for a long moment, then nodded repeatedly.

"Yes, yes, it is definitely a blowhole!"

At this time, Shen Qingge struck while the iron was hot and asked:

"In that case, then tell me, where did these stones come from?"

The instructor who had just spoken hesitated for a moment, then answered cautiously:

"General, in my humble opinion, this must be the legendary volcanic rock!"

"Volcanic rock? What is that?"

Shen Qingge and Li Cheng both looked confused. Growing up in the north, they had rarely heard of the legendary volcano, let alone what volcanic rocks were.

At this time, the instructor generously explained:

"So-called volcanic rocks are things that erupt from volcanoes.

You know, the temperature inside the volcano is extremely high and extremely hot.

However, when these hot lava gushes out of the crater and encounters the cold air outside, they cool down at an extremely fast rate and eventually solidify into hard stones, which are volcanic rocks.

Hearing this, the chief clerk on the side could not help but frown and asked suspiciously:

"But, as far as I know, there don't seem to be any volcanoes within the territory of our Nanyue Kingdom?"

The instructor shook his head slightly and responded slowly:

“Although there are no volcanoes on land, this may not be the case in the ocean.

Perhaps, deep in the vast ocean, there are one or more unknown volcanoes hidden! "

Shen Qingge and Li Cheng looked at each other, nodded, and said:

"The young instructor was right. It was indeed found near the sea."

After receiving the affirmation, the little instructor smiled and spoke impatiently:

"That must be the case, that's for sure!

I once read about volcanic rocks in a book, and the pattern drawn on it looked similar to this stone.

The volcanic rock is hard, very black in color, and has dense holes.”

Just as everyone was curious about these volcanic rocks, Li Cheng pointed to the layer of white frost covering the rocks and asked again with doubt in his heart:

"So what exactly are these white 'frost flowers'?"

At this moment, the young instructor, who had been somewhat reserved, seemed to suddenly let go of his restraints.

While no one could react to stop him, he quickly put his nose close to the stone and sniffed it deeply. Then, he actually stuck out his tongue and carefully licked the stone.

Instantly, the young instructor's face lit up with a look of immense surprise, his voice trembling with excitement:

"General, General! This... this is salt!"

Hearing this, Shen Qingge on the side picked up a small piece of stone without hesitation and licked it gently with his tongue.

Sure enough, the same surprised expression as the little instructor instantly appeared on her face, and she nodded repeatedly.

Seeing their positive reactions, the others rushed forward and picked up the stones to taste them.

For a moment, everyone's face showed a happy smile at the same time.

However, amidst the joy, a question arose from someone's mouth:

"But, but how could salt form inexplicably in this volcanic rock pile?"

Everyone was stunned again.

Fortunately, the instructor paused for a moment and then slowly spoke:

"In my opinion... this is due to the unique shape and structure of these volcanic rocks.

Their edges are not smooth, but rather have ups and downs and are uneven.

Whenever the tide comes in, the surging sea water rushes in and quickly surges onto the vast coast.

However, when the tide goes out, not all the seawater can flow back to the sea smoothly.

Part of the seawater, obstructed by the volcanic rock terrain, was trapped in the gaps and depressions between the rocks.

Afterwards, the continued exposure to sunlight continued to scorch the remaining sea water.

Over time, the seawater gradually evaporated, leaving only a small amount of salt deposited in it.

In this way, precious salt crystals are formed in these previously inconspicuous pits.”

After listening to this detailed and unique opinion, Shen Qingge couldn't help but look at this seemingly childish young teacher with new respect.

She looked at him with admiration and her eyes were sharp, and asked softly:

"I see that this teacher has extraordinary conversation skills, and I think he must be a well-read and knowledgeable person.

I wonder what your name is?

When I return, I will report this matter to His Highness and ask His Highness to reward your Imperial Observatory generously!"

As soon as he finished speaking, the chief clerk showed joy on his face and his excitement was beyond words.

He quickly knelt on his knees, kowtowed and thanked the emperor:

"His name is Zhang Yan. Thank you, General, for your kindness! This is our responsibility. It is a great honor to be recognized by you!"

However, Zhang Jiaoshi was not very enthusiastic about Shen Qingge's proposal. Instead, he said excitedly:

"General Shen, I seem to have thought of a new method of making salt!"