The smell of these people's oil caused all the vines to be agitated, and the sound of rattling was non-stop, and from Yue Guanchao's point of view, it seemed that tens of thousands of green snakes were constantly biting and twisting in the cave.

However, in a stick of incense, the cannibalism of these thorny vines has ended, all the rattans have been bitten off, spread on the ground and there is no movement, the vines on the top of the cave have gradually thinned from dense and vigorous, as if a person's long hair has been shaved into a short flat head, and the remaining rattans will not play a role no matter how powerful they are!

"This is also amazing, the human oil actually wiped out the thorn vine without moving a single soldier."

Xu Xiake saw that the cave was empty, and his eyes widened in surprise.

Song Siyuan didn't expect that what human oil said about covering up human flavor meant this, although she didn't understand the principle, she could also see the subtlety of this kind of manpower to change the world: "The role of human oil is even greater than we imagined, and once this problem is solved, it will be much easier to enter the cave mountain." ”

Since the thorn vine no longer poses any threat, entering the cave mountain has already put forward the plan, Yue Guanchao and the rest of the lamp tubes were distributed to Xu Xiake, the second uncle, the second artillery, and Ren Peacock, and everyone picked up the torch and stood in the shape of a "device", wading on the ground of the death thorn vine, and hurried forward.

After walking for nearly 100 meters, they could already see the wet and cold wind blowing from the front, Yue Guanchao and Xu Xiake took a step into the grotto, and when they looked at the cave steadily, they had already come to the cave mountain in the depths of the cave!

"Come and see if this is the cave mountain described by Uncle Tang."

Yue Guanchao's shout attracted everyone to the past.

Song Siyuan and the others walked into the grotto and looked at it, the low grotto was gone, and the empty valley suddenly opened up in front of them.

"I didn't expect that in the depths of the cave, I could hide such a large river valley!"

Yue Guanchao had to exclaim.

"This is the mystery of geological movements, the height of the mountains, combined with the depth of the ground, is enough to form such wide river valleys."

Song Siyuan turned on the flashlight and observed the underground river valley in front of them.

The valley resembles a trumpet, resembling a leading flower, and they stand on the cliff in front of the trumpet, and when you look down, you can see countless waterfalls flowing out of the burrows and into the underground river.

The subterranean river is shaped like an upside-down T-letter, with the secondary river running in front of everyone, and the main river stretching along the mouth of the lama until the view disappears, and there is no end in sight.

If the main river channel is compared to the trumpet body, then the valley where the main and auxiliary rivers meet, is the horn mouth that constantly stretches outward, and the surface of the mountain on the left and right is rugged, covered with all kinds of irregular caves, and there seems to be some ground vine moss covering it, and the cold air blowing from other caves is constantly rippling.

Looking up, the grotto dome is tall and open, like a night without starlight, most of the eye caves on the surface are black and blurred, only a few large eye caves can shine in the sunlight, and the huge pillars of light are cast below the river, reflecting the flowing light of the shadow and shadow.

The most terrifying thing is not the underground mountain of the entity, but the erratic gray-black soul mist near Horn Mountain!

These fogs are sometimes turbid and white and sometimes mixed with ash, like rich stove smoke and paper money fly ash, like bee swarms and locusts, endlessly changing different forms, always drifting near the cave mountain, the cold wind blows, the smoke instantly becomes other forms, and there is no sign of blowing away and disappearing!

These soul mist, like tangible and intangible soul mountains, cover the lama's mouth tightly with thousands of meters of smoke miasma, so that people can't see the reality clearly, and they can't recognize the river channel.

Ren Peacock looked at the soul mist and muttered, "How are these black smokes similar to the insect swarm we saw?" ”

"Sister Ren, it's not like, these soul mist are the swarms we saw."

Song Siyuan picked up the binoculars and carefully observed the recent situation of the soul mist, and it was really as she thought, it was a gray-winged flying insect, tens of thousands of insect swarms, creating a thick black mist that would never disperse in front of her!

She put down the binoculars and looked at everyone to confirm everyone's guesses: "When we came over just now, I saw the rattan near the cave, and I guessed that it was the flying insects that felt the medicinal qi before they could fly to the city tower, and the flying insects left in the cave were the gray fog we saw!" ”

"No, these flying insects are also living creatures, how did they fly out, don't thorn vines eat them?"

Xu Xiake was puzzled, once these flying insects appeared, they must be in groups, so big movement, could it be that the thorn vines didn't react at all?

"Brother Xu, it's not that I'm indifferent to the flying insects, but that the flying insects have fed them!"

This made everyone surprised, Song Siyuan motioned for them to be quiet, and explained to them the reason for this speculation: "Just now, we walked all the way, and I found that there were undigested flying insects in the organs of the broken vine, and I think these flying insects were fed to the broken vine in order to break through with the strong ethnic advantage. ”

"Think about it, if it weren't for the thorn vines that ate a lot, the flying insects we saw in the city tower should have been multiplied by more than ten times."