Knowing the way to the Savage Tribe saved Aoki a lot of time.

The river in the savage's dream is not the same as the stream outside the cave, but on the other side of the lake. He led them over two hills, during which they finally saw the island's large lake up close.

The distant mountains are like daisies, the surface of the lake is like a mirror, and the outline of the mountains is reflected in the lake, which is quiet and picturesque. I have to say that the scenery is really charming, but when you think about all the things happening on the island, no one is in the mood to enjoy the scenery.

The coal boss didn't dare to fly too high, for fear of crashing headlong into the sea again.

Aoki asked him, "Did you fall into this lake last night?" ”

The crow circled low on the surface of the lake and came back and said, "It's quack, it's quack!" But the strange thing is that yesterday I could hear the sound of the tide, but today it is as quiet as a mirror! ”

Su Huilan said: "If you can hear the tides, it means that there is still the gravitational pull of the moon here, but we couldn't see the starry sky last night. ”

The crow stood on Aoki's head, his paws gently scratching Aoki's hair: "Yes, yes, it was so dark last night that there was no light at all, but it scared the baby!" ”

The leader in front heard his words, turned around and meowed, and wagged his tail proudly.

The crow croaked dissatisfiedly: "What are you! Isn't it just that you can walk at night, look at your yellow and discolored! As he spoke, he flew to the ground and walked side by side with the cat, "What's that...... Wail...... To be on the safe side, don't run around tonight, let's sleep together, I'll protect you, quack......"

The cat meowed and rubbed its head against the crow's feathers.

Su Huilan said: "Aoki, your bird is really shameless! ”

Aoki was speechless, but the crow suddenly turned around and said, "Hey, hey, don't say bad things about me behind my back because I don't agree with the two of you!" Let me tell you, the relationship between good brothers is not something that you can destroy as a little woman! Therefore, it is recommended that you give up the luck of a third party intervening, where can you not find a good man with conditions like yours? If you're kind to me, I can introduce you to a few...... Well, for example, Captain Shi of the criminal police team is not bad, quack......"

Su Huilan was so angry with him that she couldn't cry or laugh: "When did I say that I want to be a third party?!" ”

The crow said, "Can you hide your little caution from people, but also from birds?" ”

The more Su Huilan thought about it, the more angry she became, and argued: "Even if I have such thoughts, it's not a third party!" Fair play only! ”

The crow said, "Quack, what are you competing with?" ”

"I'm ......" Su Huilan thought for a long time, yes, what kind of competition do you have? Beautiful appearance, profound knowledge, inexhaustible wealth, he has all of these, but does he care? And this is not very different, the only thing that is unique is probably the achievement of spiritual power, but ......

When she thought of this, she suddenly realized that she seemed to have fallen into a mental trap. How could I think about this? When did I have such an idea?

She saw a cunning glint in the crow's little rolling eyes, and said angrily, "Aoki, what kind of bird are you raising!" It's a fine thing! ”

Aoki on the side put his hands in his trouser pockets, and walked on a kick and kick, his face was light and light, as if the topic they were talking about had nothing to do with him at all.

Su Huilan had to wonder if she was tricked? Was this man and a bird premeditated? Is this how they do the bar proprietress in Liuying Lane?

The crow flew to Aoki's head and croaked: "Beauty, I have a fate with you and me, I will show you the way......"

The more Su Huilan listened to this, the more it looked like she had met a fortune-telling liar.

"Insertion is a craft, competition requires courage, when do you learn to make sauce elbows, or can make something more delicious than sauce elbows, you can pass my level, quack quack......"

As the crows made their way, they saw the river that led to the savage tribe.

It is a deep stream between the two mountains, and the terrain is lower than the lake. The lake overflows from a small opening in the mountains, flows down dozens of meters, and flows to the bottom of the stream to form a deep pool, which flows forward along the mountain stream to form a river.

The width of the river was about ten meters, much larger than the creek they had come.

"Whoa......" the crow tilted her head, "why do I think it's a little strange here?" ”

Su Huilan was angry that the crow teased her just now, and turned her head to ignore him.

The crow saw her expression and cried, "Hey, woman, don't be so stingy, okay!" So how can you chase my brother so stingy? ”

Aoki slapped the crow above his head and said to Su Huilan, "This bird has learned badly in the bar, don't pay attention to him." ”

Su Huilan shook her head helplessly and said with a smile: "Don't worry, I won't worry about a bird!" ”

She pointed to the river and said, "The river flows in the same direction as the savages saw in their dreams, but it is not scientific." Rivers generally originate in the mountains and are formed by the convergence of streams. The island is not large enough to form such a large river, and the river flows out from the central lake, indicating that the ground outside is lower than here, so there are only two possibilities, one is that the lake is higher than the sea level and the lake flows into the sea, and the other is that there is a larger lake at the end of the river. ”

"But in either case, there is the biggest question, where does the fresh water in the river come from?" Su Huilan bent down by the river, dipped her fingers in the water and put it in her mouth, "The mineral abundance of this water is relatively high, but it is by no means the taste of seawater, and the water temperature is high, it may be caused by volcanic activity." ”

Aoki asked, "Didn't you say it's a Klein bottle?" The bottle is round, why is there such a thing as high and low terrain? And since the sea outside the island and the lake in the center of the island are connected, why is the lake not seawater? ”

Su Huilan said: "The earth is round, and water flows on the curved surface of the earth, but there are also high and low terrains. The same goes for the Klein bottle, which is an independent space with a special structure and gravitational field, not a bottle standing on the earth. As for the sea and lake water......"

She thought for a moment and said, "Do you know the dividing line between the Atlantic and Pacific Oceans? ”

"You know, where they meet, you can see a clear line, and the water level of the Pacific Ocean will be a little bit higher than the Atlantic Ocean, and it will be a little lighter," Aoki said. ”

"That's right, because of the different compositions and mineral concentrations of the seawater, as well as the influence of climate and ocean currents, the fusion of the two seawaters is very slow, so although the two oceans are connected, they are naturally separated and will not be mixed," Su said. The same goes for the lake and the sea here, and although it is not clear exactly where they are connected from, there is certainly a dividing line. The biggest problem is that the sea is too big, and to maintain this demarcation, a lake is large enough and there is enough fresh water. ”

Aoki nodded and said, "Just look along this river, didn't you say that you saw the strange sight of the waterfall flowing backwards in the dream of the savages?" ”

She turned around and meowed a few times, indicating that she had also seen such a spectacle.

They walked along the river, which was sometimes narrow and sometimes wide, and was thirty or fifty meters wide at its widest point. After coming out of the narrow mountain stream, the terrain gradually becomes more and more open, and you feel like walking in the Amazon jungle.

As they walked along the river, the water was flowing forward, and the river was rough and difficult, they didn't feel anything wrong until the crow suddenly cried: "Hey, look back! ”

Aoki and Su Huilan turned back at the same time and saw the river behind them like a white ribbon, winding through the mountains. They could no longer see the lake because of the mountains, but one thing was clear - the terrain they came from was much lower than where they are now.

This river is really going uphill with a very slight slope!