[Drillworm Pheromone]: When used, it will summon a large number of drillworms in the target area, which can corrode land and huge rocks. It can be used when trapped underground and unable to escape, but use with caution!
In fact, the natives had long known that city walls could defend against most mutated creatures, except for drillworms.
That's why when the video introducing the high-wall city was shown, the female reporter deliberately emphasized the energy grid protection to prevent drillworms from invading from underground.
No matter what kind of city wall or rock it was, in front of a drillworm, it was nothing more than sand that had not yet melted.
Zhang Chen gently tossed the [Drillworm Pheromone] in the reagent bottle onto the city wall.
With a *click*, a slight cracking sound was heard.
Then, a scent imperceptible to humans slowly drifted out, spreading into the air and seeping into the soil.
The biological energy of the pheromone began to resonate with the energy field of the natural world, and an invisible energy wave quickly spread out.
Five minutes later.
With a *boom*.
A drillworm queen emerged from the soil.
Its originally massive body appeared exceptionally small in front of the entire high wall.
"Let's move aside. It's time for them to perform!"
Zhang Chen led everyone back over a hundred meters.
He saw the drillworm queen's claws gently rest on the city wall.
The surface of the once indestructible city wall instantly crumbled, and large chunks of rock immediately fell off. During their descent, they gradually turned into rock fragments, and when they hit the ground, they had merely become fine sand.
As the queen's digging speed increased, countless drillworms gathered from all directions.
In an instant, the previously flat ground began to boil like boiling water.
The soil turned into sand, constantly undulating.
Occasionally, dormant hibernation pods containing clones were unearthed by the sand and overturned onto the ground.
As the number of drillworms gathered increased, the high wall also began to rapidly corrode and weather.
"Ssss... ssss..."
Just as the drillworms began to move.
Zhang Chen saw two squads of armed mechs descending from the top of the high wall.
Each squad had five armed mechs, a total of ten!
"Damn it, dealing with these armed mechs isn't difficult, but the problem is that their weapons are all large-scale indiscriminate weapons, and once engaged, if they aren't instantly killed, it's easy to cause a big commotion!"
"If that's the case, our plan will be ruined!"
Zuo Nan said with a frown.
"Master, I can take out two of them preemptively without making a sound!"
Shirley volunteered.
"No, I'll try. If any are missed, you can go then!"
Zhang Chen said lightly.
[Soul Burn] activated to level 9!
In an instant, a stream of blue flames enveloped Zhang Chen's body.
Then, Zhang Chen instantly disappeared from his original spot.
The next second, he appeared directly in the middle of the first squad of armed mechs.
Zhang Chen lightly touched the two mechs in the middle with his hands.
*Swish!*
The two mechs vanished into thin air!
"Ssss!"
The other squad of armed mechs had already detected Zhang Chen's presence and aimed their cannons directly at him.
However, Zhang Chen hid behind the remaining two mechs of this squad.
They couldn't lock onto their target at all.
*Whoosh!*
These two mechs also disappeared.
Just as the second squad of armed mechs was about to lock onto Zhang Chen.
He once again vanished from his original spot into thin air.
Then, using the same method, he easily stored the second squad of armed mechs into the [Worldly · Progressive Weaponry Repository]!
After all, as long as it was a non-living entity designed by the progressive faction, there was no need to fight; it could be stored directly!
Each armed mech occupied 2 units of space.
Suddenly, the available space in the progressive weaponry repository decreased by 20 slots!
"Done!"
Zhang Chen blinked back to the ground.
He had dealt with 10 reinforced armed mechs in one go, and it had only taken a few seconds.
Zuo Nan looked at Zhang Chen with disbelief and murmured:
"You... how many divine artifacts and items do you still have..."
"If even you cannot end the apocalypse... then perhaps no one else has the ability to..."
Zhang Chen smiled slightly and remained silent.
After about 10 minutes, the hundred-meter-thick high wall was finally weathered and eroded by the drillworms, creating a cave.
From the outside, one could faintly see light penetrating from a distance.
This indicated that the drillworms had dug through the high wall!
"Such efficiency!"
Zhang Chen praised softly.
"Let's go!"
Zhang Chen said to those around him.
At the same time, he snapped his fingers lightly with his right hand!
*Snap!*
Strands of white mist rose from the constantly churning earth...
As the mist dissipated, the soil stopped churning and gradually returned to its normal state.
*Ding!* Congratulations on successfully auto-collecting. You have obtained [Energy Gathering Crystal Core] *325+90 (30% trigger of Light Blessing), [Giant Carapace] *66, [Scythe Claw] *37, [Intact Mutant Bug Wings] *200, [Delicious Bug Meat] *80, [Ice Condensing Flower] *22, [Ice Condensing Flower Seeds] *5, [Rare · Premium Bug Meat Cooking Guide (Lower)] *1.
[Rare · Premium Bug Meat Cooking Guide (Lower)] discovered [Rare · Premium Bug Meat Cooking Guide (Upper)] (Chapter 226), automatically combined into [Worldly · Premium Bug Meat Cooking Guide]!
[Worldly · Premium Bug Meat Cooking Guide]: Contains all methods for preparing bug meat. Processed dishes, depending on the quality of the ingredients, may temporarily enhance attributes/permanently enhance attributes/add extra temporary states, etc.
Ice Condensing Flower? And a bug meat cooking guide?
He had just asked these drillworms to help open a path, and he didn't expect such a good harvest!
This was a huge profit!
Zhang Chen's mood was greatly improved as he led everyone into the high wall.
At the same time, five clean-up crew members were stationed at the entrance of the high wall cave, ensuring that the infected did not make noise or rush into the high wall.
Afterward, he finally recalled Xiao Ruan.
Zhang Chen checked the time.
The entire process took about 20 minutes!
There were still 40 minutes left until the agreed-upon time to launch the general offensive.
This meant that Zhang Chen had at least another 40 minutes to freely explore the entire seventh high-wall city.
He had to hurry!
Zhang Chen opened his electronic minimap and glanced at it.
The seventh high-wall city had two areas that required focused searching.
The first area was the armory. As the last stronghold of the native civilization, it was bound to have a large amount of high-end weaponry stored within, making it a must-search location.
The second area was the laboratory. It was one of the two key laboratories in the high-wall city, and it was certain that many clues about the apocalypse could be gathered from it.