But there is always a way, after the four of them killed the sea crab, take out the crab paste and crab roe and put it into the pot, mix some edible wild fruits and weeds collected along the way as a seasoning, light the fire at the bottom of the pot, and the rich fragrance of seafood suddenly came out of the pot.

The rest of the crab meat is grilled directly on the fire, which has a unique flavor.

"It's delicious, but it's a pity that there is no vinegar." Dai Qing smacked her lips and said with some regret.

Ye Mu wiped a handful of crab paste from his mouth, smashed his mouth and said, "But you should be able to add some salt." ”

"Huh?" Dai Qing asked suspiciously, "Do you use sea water?"

"Yes, but seawater can't be eaten directly, it has to be treated." Ye Mu smiled and put down the crab meat in his hand.

He took out two large iron bowls in his backpack and explained while operating: "Fortunately, I brought a lot of daily necessities from that pervert's house, and the coarse salt obtained by directly boiling the seawater cannot be used directly, it contains potassium chloride, magnesium chloride, and a small amount of sodium chloride, but they can be separated by the difference in the solubility of the three substances... These troublesome things can be easily done with my ability, and I can use the ice element and the fire element to regulate the temperature... The lightning effect attached to the light element can be used for electrolysis..."

Qin Aowu and the three of them on the side were dumbfounded when they heard this, and Liu Wen couldn't help but widen his eyes, he knew that Ye Mu was very smart, but he didn't see that he was a scholar in school at the beginning.

Dai Qing exclaimed: "Is it possible... Ye Mu, are you a top student in school? I don't think you know anything. ”

Ye Mu scratched his head and said a little embarrassedly: "No, I belong to the type of mixed eating and waiting for death in school, but recently, somehow, I feel that many things that I have seen inadvertently before and the knowledge I learned in junior high school and high school have suddenly become a lot clearer, and many things that I have forgotten can be remembered." ”

Liu Wen shuddered unconsciously when she heard Ye Mu's words, what she was most afraid of was that Ye Mu suddenly recalled the experience on the train, and she didn't know if what she did on the train was a betrayal.

But whenever she recalled that dark experience, and thought of Ye Mu's tyrannical and terrifying eyes, indescribable fear quietly surfaced in her heart.

If Ye Mu regained his memory one day, Liu Wen really didn't know how to face this man.

"Alright." It didn't take long for Ye Mu to stir up a small bowl of rough table salt, he reached out and dipped some into his mouth, and his face showed a satisfied look: "You can eat it, it is indeed salt." ”

No matter what human beings eat, they can eat it as long as they are stained with salt, and it can be said that salt is one of the greatest inventions in human history. The delicious crab paste and crab roe are added with salt that has just been purified from the sea by Ye Mu, and the taste is even more upscale.

The water vapor that was distilled before was also skillfully used by Ye Mu, he placed the ice element ball on top of the water vapor, and the steaming water vapor was immediately condensed into Xiaoice pieces by the ice element, and these ice cubes were collected and mixed with the sweet fruits collected to make a delicious salad.

The sea is indeed a beautiful and romantic place, not only with beautiful scenery, but also with abundant products.

For example, this sand... It is said that it can be made of glass.

But it's useless to do it, you don't need glass to survive in the wilderness.

The coasts of this world also have tides, and tides are the periodic rise and fall of sea water. Because the day is the morning and the night is the night, the rise and fall of the sea during the day is called "tide", and the rise and fall of the sea water that occurs at night is called "tide".

Tides are related to the moon and the sun, and the phenomenon of the water surface of the ocean rising regularly due to the gravitational pull of the moon and the sun is called tides.

Ye Mu sat on the beach, watching the ebb and flow of the sea, and he speculated: "In other words, this world should be a planet like the earth. ”

Dai Qing curled up in Ye Mu's arms like a tired kitten, several days of running made her physically and mentally exhausted, staying with Ye Mu always made her feel safe, the girl liked this feeling of nesting in Ye Mu's arms, in this terrible world, it seemed that only by this man's side could make her feel at ease.

Liu Wen sat quietly behind Ye Mu, her head lowered, not knowing what she was thinking.

Qin Aowu sat alone on the rocks on the shore, he raised his right hand above his head, staring at the bone bracelet on his wrist, his face covered with tears.

The scarlet crescent moon slowly rose, and the red moonlight sprinkled on the sea and the beach, as if to clothe the whole world with a blood-stained veil.

The romantic and beautiful picture adds a touch of eerie feeling.

Under the illumination of the moonlight, on the calm sea, a magnificent and simple city suddenly appeared in front of Ye Mu's eyes.

"What is this?!" Ye Mu exclaimed.

Dai Qing in his arms looked up puzzled and asked, "What's wrong?" ”

"Look!" Ye Mu pointed to the city on the sea and swallowed.

Everyone looked in the direction Ye Mu was pointing and were stunned.

Under the moonlight, the quaint and magnificent city exudes a desolate and simple atmosphere, the architecture of the city is like the style of ancient Chinese architecture, the palace with white walls and black tiles is magnificent, the exquisite pavilions and pavilions, the wooden high attic platform, pleasing to the eye.

As far as the eye can see, it looks like a lost thousand-year-old city.

But how can there be a wooden building that does not rot for thousands of years.

Qin Aowu's brows furrowed, and he guessed suspiciously: "Mirage? ”

"Not really." Ye Mu shook his head and said, "And even if it's really a mirage, it's a good thing."

Qin Aowu looked at Ye Mu and asked, "Why?" ”

Dai Qing answered his question: "Mirage is a natural phenomenon formed by the refraction and total reflection of light, and we can see the mirage of the city here, which means that there is a city in this city." ”

"That's not right..."Ye Mu suddenly thought of the perverted man he had met before, and said to everyone after thinking about it: "This city is obviously biased towards ancient civilizations, but the perverted researcher before obviously has mastered high technology, and the architectural style of this city is completely different from the previous villa." ”

"In other words, this city is likely to be a lost thousand-year-old city?" Dai Qing guessed along Ye Mu's train of thought.

Ye Mu stared at the city on the sea, and said slowly: "I think it may be another civilization different from that perverted researcher, and do you really think it's a mirage?" ”

"Isn't it?" Qin Aowu asked rhetorically.

"A mirage is a scene caused by optical refraction, as long as you adjust the height of the view, the mirage phenomenon will disappear, or its appearance and height will change, you can climb a tree to see." Ye Mu thought for a while.

"I'll take a look." Qin Aowu nodded, turned around and walked towards a big tree behind him.

"Beware of poisonous insects in the trees!" Ye Mu reminded behind him.

After these days of contact, Ye Mu also knew a little about Qin Aowu's skills, and his force value was not much better than Ma Zizhou's, so there was no need to worry too much about him encountering danger.

From the moment they acquire skills, their abilities and physical qualities have made a qualitative leap.

At this stage, this effect is especially noticeable for those who gain skills that are biased towards warriors and assassins.

Qin Aowu climbed onto the tree in three or two clicks, squinting his eyes and looking at the sea level in front of him.

"How's it going?" Ye Mu asked at the top of his voice.

"It's not a mirage..."Qin Aowu muttered.

"What??" Ye Mu didn't hear clearly, and asked again.

Qin Aowu jumped down from the tree and walked towards Ye Mu and the others, the shock on his face had not yet faded, he looked at Ye Mu and said in disbelief: "It's not a mirage, it's a real city in the sea!" ”

Everyone's faces showed a look of surprise, after so many days of running and tiring, they finally saw the human city.

Ye Mu couldn't suppress the excitement in his heart, and said to everyone excitedly: "Have a good rest!" Tomorrow we will start preparing, and the goal is the city in the sea! ”

The most amazing thing is that the mysterious city only appears in view at night, and at sunrise, the city on the distant sea level will slowly disappear from everyone's sight.

Although you can see the city on the sea level from the coast, the actual distance is much farther than what you can see with the naked eye, the two girls are not good at water, Ye Mu's swimming level can be regarded as just starting at most, and it is a fool's dream to swim from the shore to the city in the island.

As things stand, shipbuilding is the best option.

In order to prevent the hard-earned things from capsizing as soon as they were launched, the four of them first made a model of the hull with a small number of wooden blocks, and after several research and modifications, they finally pieced together a hull that could float on the sea.

By scaling the model in equal proportions, the designed hull can be manufactured.

Qin Aowu's spear was extremely sharp, and it was not difficult for him to cut a small number of wooden blocks from the tree and then carve them into a model, but if he was asked to use the spear in his hand to cut down the stout tree, and then sawed the tree into the shape he wanted, it would really be difficult for him.

"What should I do?" Qin Aowu looked at Ye Mu sweating profusely, hoping that he could come up with a good solution.

Ye Mu looked at the small section of the hull component that had been busy all day before looking at the forming, and patted Qin Aowu's shoulder, revealing a look of sympathy: "Brother... Take your time, you're the only one here who can cut down trees. “

Qin Aowu glanced at Ye Mu fiercely, put away his spear, held a bowl of pure water handed by Ye Mu, and sat under the tree to rest.

There are only trees and sand and gravel in the vicinity, and the only tools that can be used for building ships are wood, and the seaside is different from the forest, and there are no large trees that shade the sky and the sun like in the primeval forest.

If you want to use local materials to build a usable boat, you can only use the technology left by our ancestors: mortise and tenon construction.

The mortise and tenon joint craft was first born in the Stone Age, and in ancient times, the royal family and the homes of dignitaries and nobles used the mortise and tenon structure in large houses, small tables and chairs. Although no metal components are used, the furniture and architecture are extremely strong, and the mortise and tenon structure made by skilled craftsmen is very tightly fastened, and there are basically no gaps. Legend has it that a set of mortise and tenon structures made by Lu Ban was thrown into the water, and three days later it was fished up and disassembled, and the internal structure was still dry.