Qin Feng knew that he still had a long way to go, and he seemed to understand that even if he reached the level of Qina, it was far from the end. The growth space of the Void Worm is really terrifying.

This is a starry sky where you can move and grow.

The Blue Immortal was still heading towards the insect mound, and it was already possible to "see" the area with dense cavities from a distance. However, the further he walked in, the more scarce the cavities became, and Qin Feng knew the reason, it was his last accidental intrusion that caused the space of the insect mound to change.

The "entrance" to the mounds was unexpectedly closed last time.

I don't know if it can be opened again now, from there the number of cavities has decreased, Qin Feng feels that things are not what he imagined, it seems that the insect mound has not spewed cavitations since he left last time.

Maybe I really did it? Qin Feng muttered to himself, if he couldn't get in, the loss would be a bit big, the last time he entered was too hasty, he should have known that he should have charged more Star Swirl or empty bubbles.

When the Qing Ming came to the "entrance" of the insect mound last time, Qin Feng could already be sure that there had been no new cavities here for a long time, and those cavities that had been sprayed before had also become much larger, and they were no longer suitable for collection.

Even if it is collected, it can only hold warships, and it is not known whether the space device made by Xingti can collect the empty bubbles that have spanned millions of kilometers.

"Nine days, Xingti."

With Qin Feng's call, Jiutian took Xingti to teleport back from the teleportation ring, and they also saw the changes here, especially Jiutian experienced the situation last time and knew the situation here, and she was also stunned when she saw the current situation.

"Uncle, this place is different from last time."

"Yes, the mounds are closed, can we still enter?" Qin Feng was not only asking Jiutian, but also asking Annie.

"The walls of the space here are different from other places, and I can't go directly into them." Anne's voice was also full of helplessness.

"What's the difference?"

"It doesn't seem like it's a single spatial structure, and I won't be able to tell until I'm close." Annie meant to let Qin Feng get close to the entrance of the insect mound last time.

Qin Feng also wanted to go and check.

But as soon as this idea was spoken, it was opposed by Xingti and Qingwei, the two who had already participated in it once last time knew the danger here, so they naturally didn't want Qin Feng to take risks again, as for Xingti, he also thought the same.

"I'm fine, you can rest assured that Annie is here. By the way, what about the space collection device you made with Jiutian? ”

"Here, thirteen, one more than was envisaged." Xingti took out twelve badges, plus a palm-sized "jewelry box".

"These badges can charge Star Swirl's Tight Space, one of each. This box can temporarily hold Star Swirl or small bubbles, and you can put more than one, depending on how much space and energy you have in Star Swirl or bubbles. ”

Qin Feng nodded, Jiutian was holding a small handful of things in his hand, Qin Feng saw Jiutian's appearance like a treasure, and knew that this should be done by her.

"Uncle, this is the first time I've learned to do it with Xingti, and it's not a waste of materials."

"What do you do?"

"This is not used to carry space," Jiutian was a little dissatisfied with Qin Feng's distrust, "Uncle is just underestimating people, and you don't doubt what Xingti does." ”

Qin Feng shook his head, this is really hard to explain, Xingti has done it once before, Jiutian has learned to do it, can this be the same?

"This one I did is called ......, well, it's called spatial concussion." Jiutian rolled his eyes, obviously naming on the spot.

"Oh? What kind of space oscillation? Qin Feng didn't care about Jiutian's actions, but became interested in this spatial shock, you must know that although Jiutian is said to have inherited the core of the Qing Ming, it is essentially a copy of Xingti.

To say that there is no Xingti's creative ability, Qin Feng himself does not believe it.

"Uncle, this is not a finished product, and you still need to add a mark and a small space."

"What do you do that still needs my mark and a small space?" When Qin Feng heard Jiutian say this, he immediately became interested.

"It's not just a bomb." Xingti pouted from the side.

"Bombs?"

"yes, this guy is a lot more violent than I am." Xingti hurriedly cleared up his relationship with himself, which made Qin Feng laugh, you must know that Xingti not only has the character of a wealth fan, but also a small violent person, but he insisted on transforming the Xingti from a mining ship into a powerful warship.

"This outer layer is made with the technology of the shell of the Blue Immortal, don't look big, there is a lot of energy inside, inside is a small piece of dark blue, if the uncle adds a small space on the outer layer with the seal to detonate, let the energy of the outer layer press into the dark blue, hehe......"

You don't have to guess to know Jiutian's thoughts, this is a continuation of the kind of explosion test she made before, the blue is very stable, but the more this is done, once it is detonated, the power can be imagined.

"How big was the blue that exploded in your experiment?" Qin Feng cautiously confirmed it again.

"It's a little smaller than that."

Jiutian measured it with his small hand, Qin Feng frowned slightly when he saw it, where is this small, it is much smaller, the previous nine days were used for testing in the research cabin, and she also knew that it was not suitable to use a large amount of dark blue for testing.

Just a small point can cause that kind of damage result, but now those spatial shocks in the hands of Jiutian are several times more than the test.

"Don't listen to what Jiutian said there, she also compressed the dark blue." Xingti sued again.

"Compression? Can you still compress the dark blue? Qin Feng was full of questions, you must know that the structure of the blue is very stable, and it is not an ordinary substance at all, to say that ordinary matter composed of atoms, the gap between atoms, and the huge gap between the nucleus and the electron can be compressed, which is also the origin of neutron stars and black holes.

"Of course you can, the blue also has different qualities, there are impurities in it, I just removed some impurities." Jiutian said proudly.

"You mean you can also be purified by dark blue?"

"Of course."

"What about Blue Gold?" Qin Feng hurriedly asked, if the blue gold can be extracted into dark blue, then it will be of great significance, after all, the blue gold in Qin Feng's space is enough to build tens of thousands of warships.

"Okay, I haven't tried." Although Jiutian's answer was a little uncertain, the meaning was obviously possible, "The structure in the blue gold is more loose, and there are many impurities, such as the star core spar material contains blue gold particles. ”

Jiutian obviously answered the question in reverse, but Qin Feng still understood that whether it was dark blue, blue gold, or star core spar, it could be purified.

"Then you hurry up and build a purification device, my space is full of blue and blue gold." But Qin Feng didn't figure out why he wanted to purify, just to create a spatial shock?

Anyway, the high-purity ones are better and more convenient to store, Qin Feng can only explain to himself like this.

Fortunately, the number of these spatial shocks created by Jiutian is not much, and there are only more than thirty, it seems that the cost of manufacturing includes time, so that Jiutian cannot make more during this time, and the implantation of the mark is to facilitate Qin Feng's detonation, so as to prevent others from targeting Qin Feng after obtaining it.

After everything was done, Qin Feng put away the badge made by Xingti and the box, and was about to go out with his legs, but was stopped by Qingwei, "Your Majesty, you have to take us with you no matter what this time, and you must also take the Qingying with you, once there is danger in the insect mound, you can have a helper." ”

What Qing Wei said was right, if he had a helper, Qin Feng could concentrate on dealing with danger.

"Okay, take you with me this time, and I'll put away the Blue Immortal later, otherwise I won't be able to enter the worm mound." Qin Feng thought for a moment and asked, "Nine Heavens, how powerful is this spatial shock of yours?" ”

"According to my calculations, a completely released release can send out a super strong space shock, which can lead to the shattering of space thousands of kilometers around it."

Qin Feng gasped, fortunately he didn't go out to test, otherwise it would definitely be ugly if he got close, obviously Jiutian knew this, Qin Feng pretended to be angry and glared at Jiutian.

"If you're okay in the Blue Underworld, make a few more of these things, and maybe you'll be able to use them sometime."

The spatial concussion explosion spread thousands of kilometers, shattering such a large space, basically everything in the space will not exist, this is a big killing weapon, even if it is Qin Feng with spatial ability, with his level, he doesn't want to get benefits.

If this is thrown into the pile of insects, even low-level oracles will not be able to survive.

Hehe, it's earned, this thing researched by Nine Days is really good, and if there are enough of it, it can completely affect Qina.

Qin Feng had always thought that the conventional means of dealing with Qina or the powerful colonizers were absolutely inadequate, even with the powerful firepower of the Xingti, it would be difficult to inflict substantial damage on them, let alone other warships, and they could only be dealt with with by the equivalent colonizers.

The reason is simple, the other side will not stupidly stand there and wait for you to bombard.

Now that he has this thing, it is equivalent to one more means, and when he throws it to the opponent's side during the battle,......, Qin Feng smiled a little obscenely.

Qingwei followed Qin Feng out of the cabin, and Qin Feng put away the Qingying. The three of them went directly to the location of the worm mound.

Not far away, the whirlpool of the mounds was still spinning silently, but it didn't spew out cavitations again.

The entrance was obviously a little smaller, not as big as the last time Qin Feng came, and what puzzled Qin Feng was that the direction of operation of the upper and lower floors had now become the same. This means that without interaction, it will be difficult for the entrance to open again in a short period of time.

Qin Feng didn't approach directly, there were different energies running at the entrance, and Qin Feng sensed that the energy on it was extremely huge, so he also needed to be careful. After all, behind this entrance is an even more bizarre mound.

Outside the entrance, Qin Feng observed carefully, there was no good way, Qingwei still followed Qin Feng closely despite the strong pressure at the entrance, which made Qin Feng need to be cautious, he didn't want to lose manpower in this kind of place.

Fighting inevitably comes with attrition, and the loss is not worth it in such an expedition.

"If there is danger, you two will retreat quickly, and I can guarantee your own safety."

Although Qin Feng said this, Qingwei didn't understand it that way, they thought that they were still weak and would pull His Majesty back, so no matter what the situation, the two of them followed Qin Feng closely, they didn't want to retreat when it was dangerous, and let His Majesty face danger alone.

In that case, they won't be able to raise their heads again.

But how can you enter safely? It obviously didn't work to explode, although Qin Feng had already found a spatial shock in his hand.