The group of three walked in the pitch-black corridor, only the faint light emitted by the fluorite above their heads illuminated the road ahead, the explosion and subsequent collapse caused by the three strange-looking crystallized cows obviously did not only occur in the area where they had fought before, even after running for a considerable distance, the rocks and sand above the three of them were still trembling and falling from time to time, so the prunella grass was full of collapse marks, and the mounds of earth and rocks blocked most of the passage in the east and west.

Fortunately, there are white quartz and sea sands in the team, for the former, he can always follow the warning in his heart to give the most appropriate response and guidance at the moment of crisis, and avoid the most dangerous areas, as for the latter, he will give full play to the superiority of the profession of sealer outside of battle, and take on the role of support, and every time some unavoidable boulders from the sky are sealed with mobile cards and then manifested behind him.

That way, as long as he has enough blank cards on hand to circulate, he can act as a path-opening axe and create a path that can be passed.

Prunella's performance is lackluster, and now he undoubtedly lacks an adventurous quality, so he can only follow all the way without falling behind, and occasionally act as an auxiliary assistant when Haijinsha does not react in time, and use the mobile cards at hand to make up for it.

"This is it, rush in!" When Bai Quartz passed a corner, a stone house came into view, he hurriedly stopped, turned around and urged the two companions behind him to enter the stone house, and he looked at the surrounding terrain until he was sure that everything was as he expected, and then he also stepped into the stone house.

After entering the stone house, a group of three people, you look at me, I look at you, only to find that each other's appearance is a little embarrassed, they have now gone deep into the bottom of Giffen, compared to the surface, the temperature is a little higher, especially in the environment without wind circulation and the vigorous exercise now, it is very hot, and the surrounding air is full of a stale atmosphere.

And Hai Jinsha is talking to White Quartz.

"White Quartz, are you sure it's safe enough, do you need us to run out again?"

"There's never 100% security underground. White Quartz shrugged his shoulders - even though he was now covered in sand and sweat on his forehead, his shrugging was extremely dashing.

Then he said solemnly: "It is very rare for Giffen to have earthquakes, and these underground ruins can survive to this day, so they have a stable side. ”

"However, no one can say what is going on underground, and due to various factors, accidents such as road collapses are not uncommon, so the ancestors always took these issues into account when they explored and built the relay point we are in today. ”

"What's more, this is the path to the outside world that Gushan Dragon has exclusively mastered for an unknown amount of time, so I think we can trust the eyes of those professionals. ”

"What's more, with the presence of me and my junior brother, even if the outside world is tightly blocked, we can always use some sealers' methods to make a path?"

“...... Not bad. White Quartz hesitated for a moment, as if he wanted to say something, but he only nodded in the end.

Hai Jinsha nodded silently, which can be regarded as agreeing with the other party's approach.

But of course it's not that simple-

The aftermath of the collapse outside the house was still continuing, but the white quartz inside the house turned around after answering Hai Jinsha's questions, looked at the somewhat silent summer withered grass, and asked with a smile, "What are you thinking?"

Hearing this, Prunella raised her head in great confusion, and then said with difficulty—"We...... Let's go back. ”

Bai Quartz raised his eyebrows in surprise and glanced at Hai Jinsha.

"I've never been to the Underworld, but I know ...... The underground world extends in all directions, but most of the naturally formed passages are just dead ends, and now ......" Xia Dry Grass felt the ground still trembling slightly under her feet, and said helplessly: "The passages of dead ends, there must have been a lot more." ”

"But I'm still confident that I'm going to spot them. A frowning white quartz interjected.

"I know, but I know even better, those cows. ”

Prunella also frowned and said slowly, "The problem they represent. ”

"You mean the explosion?"

"It's not all. Xia Kucao nodded, and then explained: "No one would release those strange-looking cows to cause an explosion and subsequent collapse while still underground, so the reason why they did this is that they estimated that they had already appeared on the surface at this time, so they used this trick to block the road behind them." ”

"Besides, if we hadn't been able to detect the strangeness of those cows in time without your guidance, we would have died in that explosion. ”

“...... It's too dangerous. Prunella summed it up and sighed, "So...... We retreated. ”

Hai Jinsha patted Xia Kucao's shoulder for comfort, and then looked at Bai Quartz - he hadn't forgotten that the initiator was not his junior brother, but the blue-blooded nobleman who broke through the door.

Facing the eyes of the two partners, Bai Quartz shrugged his shoulders again, and then chuckled and said, "The question is...... I think we're ...... It's hard to go back again......"

......

......

After that, things started to go on the bad side, as Bai Quartz said.

Summer Withergrass looked at the crystallized rock in front of her with an ugly face, and there was a blank card between her fingers.

Now they had walked a short distance from the hut again, approaching the beginning of the explosion.

The closer they got to the center of the eruption, the more the underground artificial tunnels were destroyed, the surrounding rock walls piled up and squeezed each other, making the passage extremely narrow, and the natural rocky ground replaced the stairs above the ground, giving people the feeling that they were walking in an area where the ruins of broken walls and natural traces were mixed - the fault subsidence caused by earthquakes often caused such results, and of course, artificial explosions and collapses will also occur.

However, these troubles are not the reason for the ugly face of the prunella, in front of the magic method mastered by the sealer, as long as there is a slight gap, to ensure that the earth and stone blocking the way are only a single whole, you can use the seal card to seal and then create a path, but this method has no effect in front of those crystallized rock walls-

"These ...... What the hell is it?" Xia Kucao, who said this, subconsciously raised his hand to caress it.

Hai Jinsha on the side hurriedly pulled away the hand stretched forward by the summer withered grass with one palm.

The latter, noticing his mistake, smiled apologetically, withdrew his hand a little wryly, and then said with a little concern: "These crystallized rocks...... Can't be sealed?"