After asking Muma out loud, Duozu flew towards the underground river on his left.

Continuing to fly more than 30 kilometers along the dark river on the left side of the inner wall, where the diameter of the inner wall is basically unchanged, a glimmer of white light faintly appeared in front of it.

After placing the hanging basket group in the open space on the bank of the underground river, Duozu, who continued to be invisible, released Muma and Zhuoya again, and whispered to Zhuoya to also stealth and lie on Muma's shoulder, and the two dragons and one monkey continued to walk along the shore together.

After walking for a few minutes, everyone saw that the light was getting stronger and stronger, and Muma hid behind a stone on the shore to observe, only to see that on both sides of the opening where the light came from in front of them, there were two male Senka holding stone spear-headed spears.

Duozu whispered to Muma, "Tell Zoya to kill the Senka on the right and throw the body into the river, while I am responsible for killing the one on the left and make him move quickly." ”

Without hesitation, Muma turned his head and whispered in English to Zoya in his ear: "Bite the throat of that Kaka on the right, don't give him a chance, shout." Then the body was thrown into the river. ”

Although Zoya had killed a lot of prey before, it was the first time he had killed Muma's kind, so he whispered in English: "I'm afraid, no." ”

Muma continued to keep her voice down, but said in a very stern tone, "If you don't do it, I won't want you." ”

Zoya tilted his head and thought for a moment, then said in a smaller voice, "Babble, kill!" ”

Muma only felt a lightness on her shoulders, knowing that Zoya and Duozu should have silently touched the two sentinel Senka.

After a while, both Senka tilted their heads at the same time, spurted a stream of blood from their throats, and fell to the ground relatively silently.

It is said to be relative, because the sound of the dark river flowing with the sound of "bang-la-la" completely covers up all the sounds that happened just now, if you don't even hear it from Muma's side, then Senka in the cave where the light comes from can't be heard.

At this time, Duozu showed his figure, waved his hand at Muma, and quickly became invisible.

Muma then carefully followed the plan he had made when he had eaten before, and returned to the place where the hanging basket had been placed.

After dragging the bodies of their respective Senka guards into the river, Duozu and Zoya came to a huge cavern and hovered silently.

This is also one of the talents of the Wooenki race, which can be nearly silent when hovering.

This giant cave occupied by the Sa'o tribe, Duozu also came for the first time, only to see that on the top stone wall of the cave that is more than 300 meters above the ground, a huge night pearl is hung with rattan, like a small moon, illuminating the inside of the giant cave.

Of course, if it is replaced by human eyesight, such light is still faint.

Duozu knew that this night pearl was actually made from the fat of a huge marine fish, and its brightness could only last one-tenth of the average lifespan of the control card (two years when converted to an earth year). And this kind of fish is very fierce and difficult to catch, so this kind of night pearl belongs to the strategic material of card control.

No matter how good night vision is, choosing between light and no light, any species will choose the former if it can ensure safety.

At the bottom of the giant cave is a circular flat land the size of seven or eight football fields, and the water of the underground dark river flows through the river channel more than ten meters wide in the middle of the flat land.

A plank road made of wood and rattan winds up from the bottom of the cave to a small hole at the top of the inner wall of the giant cave that can only accommodate two control cards side by side, which is estimated to be a secret passage leading to the ground.

Muma also didn't know the surface exit of the tunnel, so the slave capture team had to sneak into it through the river.

The entrance to the cave where Duozu and Zhuoya came in just now is the exit of this river, and at the other end of the giant cave, there is also a hole of the same size, which is the entrance of the river.

On the flat ground on both sides of the river, more than a dozen simple huts made of brown thatch and black wood are built to form a village and town. Viewed down from the heights, combined with the river, these improvised structures resemble a shooting target pattern that is divided in two.

On both sides of the river in the town, five or six wooden bridges were also built. Countless members of the "Senka" Sa'o tribe of the Konka race come and go in the town, busy with each other.

On the side of a wooden bridge by the river in the middle of the circle of simple sheds, there is a stone house that is relatively large for simple sheds, with gray stone walls and brown thatch as the roof.

Duozu took Zoya and flew to the stone house, pushed open the simple door made of wooden sticks and ropes, and saw an older Senka lying on a thick layer of animal skins in the house.

Duozu said in the Konka language, "Is it the Ava patriarch?" ”

Senka in the room was woken up by a sudden dull voice, got up and looked left and right, and said, "Who's talking?" ”

Duozu said again, "You're Ava, aren't you?" ”

The other party said in an obviously impatient tone: "It's me, who is pretending to be a ghost, be careful of me..."

Before he could finish speaking, Duozu had already entered the room and grabbed him by the throat.

Then, in the simple English he had recently learned from Muma and David, he whispered to Zoya, who had been following him, "You, go, stones, above the house, set fire." Then, find, Muma. ”

Zoya timidly replied in English, "Babble, good." With that, he turned around and walked out of the stone house, and took off to the roof.

After a while, the thatch on the stone roof was ignited, emitting puffs of smoke. The Sencas of the Sa'o tribe shouted and fled in all directions.

Taking advantage of the chaos, Duozu carried Ava out of the stone house, and chose two stronger males, Senka, grabbed them one by one, and flew to the hole downstream.

Passing through the hole in the lower reaches of the Dark River, Duozu flew back to the side of the hanging basket group, at this time Muma had already opened the door of the large hanging basket, and after Duozu threw the newly caught Ava and the other two Senka into it, Muma quickly closed the door.

Next, Duozu flew back into the giant cave again and chose his favorite target to capture.

Every time Muma opened and closed the door for the Dozuse captives to enter, Zoya followed Muma's side, and according to Muma's orders, when he saw which newly captured Senka wanted to get out, he used his small but extremely powerful lobster-like tail to pull it back into the hanging basket.

In this way, Duozu caught a total of more than 30 male Senka and stuffed the big hanging basket to the brim.

Feeling that it was almost over, Duozu thought for a while, came to the river in the middle of the giant cave town, expanded his still invisible figure, absorbed enough water, and spewed out a column of water, extinguishing the stone house and the fire that burned to the nearby simple shed one by one.

Back at the edge of the gondola, Duozu asked Muma and Zoya to get into the small basket, grabbed the gondola and went back the way they came.

Muma originally thought that with Duozu's physical strength, he couldn't return to Shenxue Island at the speed of no-load, but he didn't expect Duozu to run all the way, and it only took more than half an hour longer than when he came, and he arrived at the bottom of the sinkhole.