Three minutes later.

Beef Balls felt like their bodies had been hollowed out, lying on the ground like deflated balls, and their star power was sucked up.

Fang Yuan was in high spirits, his star power was full, and he was resurrected on the spot.

Beef Maru said sadly: "Why do you only suck me? Can't you suck them? ”

Eve kicked him and said, "It's the most useless for you to keep your star power, Youwei's ability is so strong, it's most useful to keep your star power, Ye Zheyu is finding a way." If they don't suck yours, do they suck theirs? ”

"What about you? Isn't it useless to keep your star power? Beef Maruk was not angry.

"So. I'm ready, the second one to suck is mine. Eve looked awe-inspiring as if she was ready to sacrifice.

Fang Yuan began to decompose iron oxide to obtain elemental iron and oxygen.

With the oxygen source in place, the breathing of the five members of the team finally felt better.

However, the decomposition of iron oxide consumes too much star power.

If you don't find a way out soon, sooner or later your star power will run out.

"Ye Zheyu, how is the situation? The oxygen obtained by decomposing iron oxide is very limited and does not take long. Fang Yuan said out loud.

"Find a way to get into an underground cavern, but I don't know if you can get back to the surface. I'm trying to find my way back to the ground, but I haven't found it yet. Ye Zhiyu replied.

Fang Yuan thought for a moment and said, "When we fell, it fell very deeply, and it should be buried very deeply. How far are we from the underground cave you said we are talking about? ”

"It's not too far, about 20 meters, but I'm not sure if there's air in the cavern." Ye Zhiyu replied.

"The ground has collapsed, maybe it has something to do with the caverns underground. The larger the cave, the more likely it is to have air. Let's go to the cave first. Fang Yuan decided.

Ye Zheyu opened his eyes, pointed in one direction, and said, "Dig from here, about twenty meters can be reached, can we dig so far?" ”

Han Youwei immediately stood up and said, "I'll come." ”

As she spoke, she stood up, condensed a shovel with her star power, and began to dig for the rocks.

The weapon condensed by the star power has a great destructive power, and when it is smashed hard, the rock directly shatters into small pieces.

Fang Yuan controlled the iron cage, extending the steel bars and supporting the dug hole.

"You don't have to dig too big, you can climb over, I'll use steel bars to support the hole." Fang Yuan reminded.

Beef balls hurriedly added: "It's better to be a little bigger." ”

Han Youwei dug a distance, slightly gasping.

Fang Yuan stretched out his hand to pat her and said, "You rest for a while, and I'll dig the rest." ”

"Okay." Han Youwei withdrew and sat on the ground to rest.

Fang Yuan's conversion ability also condensed with star power, creating a shovel and starting to dig holes.

With a super high power of 49 points, the digging speed is faster.

Twenty minutes later.

The five members of the team finally got through the hole and climbed into the underground cavern.

After climbing into the underground cavern, I finally breathed in an air with the smell of earth.

The five of them finally dared to take a big breath.

Eve pulls out a flashlight and turns it on to illuminate the cavern.

Fang Yuan took the flashlight, led the way in front, and began to explore this underground cave.

"Is this a cave?" Eve asked curiously.

"Look at the landscape, it doesn't look like a cave." Han Youwei said as she observed.

"In addition to karst caves, what other naturally formed underground caves are still so complicated." Eve said.

This underground cave is very complicated.

And it extends in all directions, one channel connects the other.

Fang Yuan took a deep breath and said, "This place may not be naturally formed. ”

"Not naturally formed? How did that come about? It can't be dug by someone, right? ”

"It wasn't dug by humans, but if you look closely at these caves, each passage is about the same size, about three meters in diameter. There is usually only one possibility of forming such a standard underground cave......" Fang Yuan said here, and paused.

The four of them couldn't help but get nervous by his big panting, and asked, "What is it?" ”

"It must have been dug by some kind of creature." Fang Yuan said the inference in his heart.

When the four of them heard this answer, their eyes widened and their hearts beat wildly: "Some kind of creature dug ......"

Beef Ball's cheeks twitched, and he said, "Maybe not." You see, there are some smaller holes over there as well. ”

"That means there's more than one kind of creature here." Fang Yuan said.

Beef balls' cheeks changed from twitching to cramping: "No...... No way. Could it be a creature three meters wide? ”

"Scared?" Eve pursed her lips and scoffed.

"Who's scared? It's not like we haven't beaten a big bug, and if that thing in this hole dares to come out, I'll hit it. "Beef balls forcibly emboldened themselves.

"Don't talk big about it yet, there may be more than one creature in this cave." Fang Yuan reminded.

"More than one, how many?" Beef Balls swallowed and asked.

"It's not a few, it's probably a group!" Fang Yuan replied.

"No...... No way? Beef Balls swallowed again.

"When the ground first started to collapse, I took a look at the extent of the collapse, the diameter of the collapse was more than two kilometers, and it was still spreading outward, and I guessed that the diameter of the collapse area could be more than five kilometers." Fang Yuan speculated.

"So what?" Beef meatballs didn't understand what that meant.

"I didn't know the cause of the ground collapse before, but now that I see these underground caverns, I can probably understand what is going on." Fang Yuan thought about it and said.

"What's going on?"

"It must be some kind of creature that has hollowed out the ground into an underground cavern. The rocket was nothing more than a fuse, causing the ground to subside, and then the entire area covered by the underground cavern collapsed. So, this is a complex of underground caves, which may be more than five kilometers long. Fang Yuan said his reasoning.

After listening to this, the other four people all felt a chill run down their backs.

The number of creatures that can hollow out the ground five kilometers in diameter is unimaginable.

"So what do we do now......" Beef Maru asked.

"Find your way back to the ground. Since these underground caverns were dug by some kind of creature, there must be a way to the surface. Let's get back to the ground and think about something else. Fang Yuan said and led the team to continue walking.

"What, can you help me turn the shield back, I'm carrying this burning stick, and I'm not sure." Beef Maruki asked.

Fang Yuan reached out and pressed the "Alloy Burning Stick" and turned back into a shield, but the details didn't matter, it was basically a door panel.

The beef balls put the door panel on their backs, and suddenly felt much more steady.

The team of five continued to move forward.

In order to find a way back to the ground, go as high as possible.

However, the underground cave is very irregular, and you don't know where you have gone when you walk and walk.