In the cave, the sun and the moon are indistinguishable.

However, the time is very clear, the watches worn by the four people are all high-level watches used in special operations, waterproof and smash-resistant, with a lot of functionality, not only time, but also a compass.

Eight hours have passed since the time it came down.

During these eight hours, they encountered a giant python, a giant crocodile, and a poisonous rose that can poison people.

Also, not long ago, they encountered a swarm of bats.

I was chased for nine streets before I rushed out.

Xu Shaowu was also injured.

Later, when a stalactite was resting, some cyan rattans almost planted them all here, but it was Song Shan's blood that forced them back.

Stalking vines, which are not hurtful, but can keep you entangled, fixed here, and then starve and die of thirst, rarely appear.

But inside this cave, there are still there.

Along the way, the dangers they encountered were too many, and the danger level of this cave was already the highest level, if it was only Xu Shaowu and them who came in.

No matter how alert and capable they are, they will be planted here.

This underground cave is really big, even if they have a sense of direction to walk, going around, they are a little dizzy, and when they are exhausted, they find a safe place to rest for a while.

This is a platform backed by strange stones, and Song Shan sprinkled some medicines around it, which can not only ensure that snakes, insects, rats and ants do not approach, but even those unique plants will have a realm.

Enough to be safe.

In the end, they arranged for Lao Qi to keep an eye on him.

Others can take a break.

"Zuo Wu Zuo Wu, please answer when you hear it!" At this time, Xu Shaowu turned on the walkie-talkie.

Although the distance between the ground and the underground is not very long, but in this cave, the air is not good, the signal must be very poor, and they are not sure whether they can restore contact.

呲呲!!!

The intercom made a few noises.

"Boss, although this walkie-talkie is a relatively high-specification military walkie-talkie, the maximum distance can ensure communication of 50 kilometers, but the current environment in this cave is not very good!"

Xu Shaowu communicated several times, but he couldn't get in touch with the ground, so he said to Song Shan: "Maybe because of the signal blocking, we will lose contact with the ground!"

"Keep connecting!"

Song Shan thought for a while: "If we really can't get in touch, we have to consider going back first, otherwise Zuo Wu is too worried, and if he comes down by himself, it will be troublesome!"

The four of them together, all thrilling, this cave, but a dangerous area, the primitive world, if Zuo Wu recklessly ran down alone, he would be in trouble.

"Hmm!"

Xu Shaowu nodded, and he continued to turn on the walkie-talkie to contact the ground.

Luck will always come, when you feel disappointed, maybe hope will appear at this time, Xu Shaowu couldn't get in touch several times, but Zuo Sen tried twice, but it worked.

"Zuo Wu, Zuo Wu, I'm Zuo Sen!"

"Brother, you ...... Now, ...... Right now...... Zuo Wu's voice came out of Zuo Sen's walkie-talkie, but it was intermittent, and the signal was obviously not very good.

"Zuo Wu, listen!"

Zuo Sen took a deep breath and began to say into the walkie-talkie: "There is a karst cave below, the karst cave is relatively large, because of environmental problems, the intercom may lose its effect, there is no way to contact the above, and we need time to explore and find, you stay on it alone, don't come down, if we can't go up after thirty-six hours, you go to find someone to help, don't come down alone!"

"Zuo Wu Zuo Wu, when you hear me speak, please answer!" Zuo Sen added at the end.

"Got it!"

At this time, the signal was much better, and Zuo Wu's voice became clear: "Be careful yourself, try to keep in touch!"

Hearing the echo, everyone relaxed a little.

"Eat something first, then rest for three hours!"

Song Shan said.

"Hmm!"

Everyone sat down and began to take out pure water and compressed dry food from the backpacks they had prepared, although it was a little unpalatable, but it was important to maintain physical strength in this environment.

Song Shan turned on the flashlight, took out a piece of paper and a pen, and drew gently.

He has a strong sense of touch and direction.

So he can remember the road he has walked along the way, and he can even draw a prototype, which is lifelike.

"If we follow our direction and the distance we walk, we should be here now, going deeper, not going in circles!"

Song Shan squinted.

"Could it be that there is a wrong sense of direction?"

Xu Shaowu frowned, how could he feel deeper and deeper, and there was no sense of going around at all.

"No!"

Song Shan said: "My sense of direction can't be wrong!"

"Then this cave may be bigger and wider than we imagined, if we continue to walk inside, we really don't know where to go, and we may get lost in here at that time!"

Xu Shaowu said in a deep voice.

The unknown danger is the most dangerous, because you don't know what will happen next, and along the way, they are not lightly tossed.

The python that had never been seen before.

The bloody crocodile.

The silent poisonous rose appeared without saying a word......

I shudder to think about it.

It's like coming back to the era of the Jurassic.

"Giving up halfway like this, returning the same way, I'm a little unwilling, let's rest for a while, and then continue to walk inside for a while, and finally it's really not good, just retreat!"

Song Shan said in a deep voice.

"Okay!"

Xu Shaowu and Zuo Sen glanced at each other, and finally nodded.

For three hours, Zuo Sen and Lao Qi changed shifts, and one person could rest for about an hour and a half, which was considered to have replenished a lot of energy.

They were meant to be soldiers.

They are still soldiers of special operations, soldiers who can ensure high-intensity and long-term operations, and now they have experienced marrow washing and rebirth, and this rest time is really nothing to them.

However, being able to rest for an hour and a half can still give them a lot of energy.

They continued to explore inside.

What the yellow spring water looks like, even Song Shan can only know from some information, in fact, he has never seen it himself, so it is very difficult to find it.

For fear that they would miss it, they carefully looked left and right, front and back, under their feet, as long as it was water, maybe something black, they paid special attention to it.

After walking for two hours, they crossed the mouth of a cave with only one and a half people, and they felt as if they had entered a special place.

"What is this place?"

Xu Shaowu's flashlight shone in all directions, but before his light flickered, he could already see the situation inside, and there were some flashes of light in the air.

"Fireflies?"

Zuo Sen cried out in surprise.

"Not a firefly!"

Song Shan's pupils changed color: "This is a poisonous firefly, lie down, don't breathe!"

This small team has been cooperating for a long time, so there is some tacit understanding between each other, and this tacit understanding comes together and responds quickly.

The crowd quickly lay down.

A swarm of glowing bugs, lots and lots of them, scraped over their heads and went back again.

"Boss, what is a poisonous firefly!"

Xu Shaowu swallowed a mouthful of saliva, suppressed his breathing, lowered his voice, and asked Song Shan, Zuo Sen and Lao Qi also pricked up their ears and listened to Song Shan's analysis.

"A highly poisonous bug, they can also emit light, like fireflies, but their luminous body is a poison sac!"

Song Shan said bitterly: "Their life is actually very short, when they meet the enemy, they will be like moths to the fire, pounce on the enemy, but they are not moths to the fire, they are all dead, when their poison sac is broken, the venom is poured out, once poisoned, see the blood to seal the throat, at most three minutes, will definitely die!"

"So horrible?"

"And such bugs!"

Everyone gasped.

"When we were on a mission in the primeval forest over there in the Three Golden Horns before, we walked through the entire forest, and it seemed that there were not so many strange and ghostly poisons?"

Lao Qi patted his chest gently.

"That's your luck!"

Song Shan said: "If it is an undeveloped primeval forest, what you encounter and see it now, it is much more terrifying, the wonder of nature, never underestimate!"

"Boss, how do you know so much?"

Zuo Sen couldn't help but asked.

"If you read more books, you'll know!" Song Shan smiled.

That's why he knows about poisonous fireworms.

It was because he knew a plant called Love Flower.

But wherever there is a love flower, there will be poisonous fireflies, because the birth of poisonous fireflies is the pollen of love flowers, and some insects have formed a mutation, so there is this animal.

"Actually, these insects are not difficult to deal with, but what is difficult to deal with is the things under our feet!"

Song Shan said in a low voice: "From now on, everyone must be careful, you must listen to my orders, and you can't make a wrong step, otherwise we may be in big trouble!"

"Hmm!"

Everyone felt cold and nodded.

"To the east!"

Song Shan lowered his voice and said in a deep voice.

Everyone pressed their footsteps, followed Song Shan's footsteps, did not stand up, crawled forward, towards the east, and slowly walked over.

They don't have to turn on the flashlight.

Because poisonous fireflies and fireflies are almost the same, they are all luminous bodies, and when they come together, they basically shine this piece very brightly.

They pressed the sideline, which happened to be a blind spot for poisonous fireflies.

When they were about to walk out, Song Shan suddenly stopped, and he said to Xu Shaowu and the others: "You guys wait here, I'll go get something!"

After all, he was a little unwilling.

As a professional farmer, a farmer who has inherited Shennongding, he has a strong sense of research on the plants in the world.

Love flowers are a rare thing in a hundred years, no matter what, he has to dig one back.

"Boss, what do you want, I'll help you?"

"No need, I'll go myself!"

Song Shan waved his hand.

His body was very sensitive, and he jumped over prostrate and approached a flower garden, such a large piece of love flower, it was a little scary to think about.

Gloves on both hands, this is not pretending, if you fall into the poison of the love flower, even him, it will be very tricky, so you have to be careful.

Took out a small shovel and dug one.

It's like sneaking into the village, taking a shot, and then retiring as if you had never been there.

"Boss, how's it going?"

Xu Shaowu and the others were very frightened, especially when they saw that the group of poisonous fireflies was haunting the orbit of Song Mountain's flight, and they almost wanted to rush out to save people.

"Got it!"

Song Shan raised a plant in his hand.

"What is this, it's worth such a risk from the boss!"

Zuo Sen asked.

In the situation just now, if according to what Song Shan said, as long as that group of poisonous fireworms finds the enemy, they will be killed directly, I am afraid that if they want to run, they will not have time to run, it is not an adventure, it is simply a fire.

"Love Flower!"

Song Shan cut off his head, and when he saw the leaves, he kept a branch, wrapped in soil roots, wrapped it in a bag, and put it in his backpack, and then said, "Have you seen the Condor Heroes?"

"Is that kind of love flower poisonous love flower in the little dragon girl?"

Zuo Sen is a martial arts fan, and he woke up all of a sudden.

"Almost!"

Song Shan said with a smile: "Master Jin's love flower is a kind of white mandala, and this kind of love flower has different subjects and different types, but the effect is almost the same, the love flower is poisonous, and it is much more terrifying than the inside!"

"You're going to take the risk of taking such a dangerous thing?"

Zuo Sen didn't quite understand it anymore.

"In your eyes, it is dangerous, but in my eyes, it is the most lovely, plants and people, have their own lives, each has a different role, and also has a different value!"

Song Shan shrugged his shoulders and said.

"Don't say so much, as soon as I think of it, it's so close to this poisonous flower, it's a little uncomfortable, get out of here first!" Lao Qi shuddered, everyone likes Master Jin, the Condor Heroes, he has also seen it, the love flower is this thing, it is simply more poisonous than the crane top red.

"Well, let's go!"

Song Shan nodded, crawled away, and walked out of this area.

It was only after they had fallen into the darkness that they had been some distance away from the glowing fireflies that they relaxed.

"This world is strange and strange, and I can be regarded as enlightened!"

Xu Shaowu let out a long sigh.

This life is very long, and in the first half of his life, he boasted that he had seen a lot of things, but since he followed Song Shan, he always felt that his understanding of the world would surpass a level.

"Take a half-hour break!"

Song Shan looked at his watch and said, "Then we will walk inside for half a day, if there is no harvest and we can't find another way, then we must return the same way!"

The scale of this cave has exceeded his imagination, and there are so many strange things in this cave, which is beyond his expectations.

This only says one thing.

The soil of this place is good and the environment is good, otherwise even in a good place, it would be impossible to raise so many rare plants.

To say that in this cave, there is yellow spring water.

He believes.

It's just that he can't be so selfish, so he can't lose this opportunity, and he can't gamble with Shao Wu Zuosen's life, when it's time to quit, he has to quit.

If you really can't do it, you can't carry it to death.

Their food and water can only last for three days, and it is not impossible to last a few more days, but if you add the dangerous environment of the cave, it will be too risky.