[It's not stupid, I finally got the correct answer, I thought you would never see it in your life! 】

This time the system was believed to be true, and immediately raised the snail's level to LV5. The biggest skill of this swarm is transformation. As the level increases, the transformation speed will become faster and the content of transformation will increase.

In addition to transforming toxic substances into non-toxic substances, it can even directly transform human household garbage into usable food, greatly prolonging the survival rate of human beings.

[I can remind you that there are only so many, but the swarms are originally a process of continuous evolution. If you can develop their autonomous evolutionary functions, you will gain more. 】

The system left Liu Feng with a mysterious egg, telling him that the skills of Zerg Summoners are not all fixed, and even the same Swarm can develop different functions in the hands of different Summoners.

"It's so amazing!" Liu Feng realized that he had opened a high-energy insect swarm, and immediately took a different look at these snails.

The snail swarms up to LV5 can summon 2000 snails at a time, and the cooling time is only two minutes, and they can almost be in a state of uninterrupted fighting. This transformation ability brings the current advantage back to Liu Feng's side.

He summoned a dozen snails, wanting to see their current effects.

These snails are twice the size of LV4 snails, and are almost as big as the soles of human feet. They found the source of pollution as soon as they were summoned, crawling along the cracks in the door of the abandoned warehouse.

The transparent liquid they secreted seemed to be a very viscous glue, and those door cracks were completely blocked by the liquid, preventing the contents from spreading outward.

【Summon Snail】

Liu Feng summoned hundreds of snails and asked them to clear the passage between the two small doors. At the same time, he asked the little boy to inform his people that they should all gather in front of this abandoned warehouse.

These two places were not far apart. After the poisonous gas was cleaned up, the summoners of the plant department arrived in just a few minutes.

They inspected the periphery of the abandoned warehouse carefully, and found nothing wrong.

This abandoned warehouse is almost completely enclosed. Except for the door in front of them, there is only a transom on the top, but it is sealed by light yellow gas, and there is no way to see the inside.

"It's okay. After we go in, we will naturally see clearly. You stand a little behind."

Liu Feng asked Bai Youqing to open the door and released hundreds of snails to clean up the entire abandoned warehouse.

The transformation ability of those snails was extremely fast, and it didn't take long to clear the more than ten square meters of the doorway, but when everyone felt that everything went well, the first batch of snails entered began to die in large areas.

"What's the matter, what is the cause of their death?"

The winged bees sent in by Liu Feng were also damaged, and even the picture they had just sent back was very vague, making it impossible to see the situation ahead.

[The system judged that these snails suffered violent deaths. 】

The system gave a statement that these snails seemed to be the favorite of the system, and she could not see that they were a little wronged.

In order to let Liu Feng understand the situation inside, she even showed him the tragedy of those snails.

Their shells were completely crushed, and even the meat inside became mashed flesh. One can imagine the intensity of this attack, like a huge hammer falling from the sky.

"That means there are big guys in it."

Liu Feng immediately understood the meaning of the system. The reason why the big boss in this abandoned warehouse released chemicals was not only to clean up the surrounding intruders, but also to hide its whereabouts.

If they rushed in just now, it would have been food in those guys' mouths now.

This news made Liu Feng very excited. He was eager to continue to upgrade. The big boss with high experience value is simply an excellent gift from God.

Liu Feng tried several times with snails, and the result was the same. The area that those snails could clear was only a dozen square meters at most, and as long as they exceeded that boundary, his snails would be photographed into snail sauce.

Liu Feng gradually lost his patience and planned to attack in another way.

"Let's storm in and see what those guys are like."

Liu Feng didn't want to wait anymore. He used the Irontooth to kick open the door in front of him. The irontooth's tremendous strength caused the door to dent inward quickly and was directly knocked out of a distance of more than ten meters.

"Bang!" The iron door hit something hard and was bounced back, almost hitting Liu Feng's body.

Liu Feng glanced at the back of the iron gate. The trace on it was a huge ball, which looked at least the size of a basketball.

The big Boss inside should not be small, perhaps even taller than the giant zombies they had seen before.

"Everyone is ready to fight! Those guys may rush out at any time!"

Liu Feng stepped back two steps. Sure enough, the big boss had another trick. It threw a mud ball at Liu Feng. The mud ball had a long tail behind it, and it was full of highly toxic chemicals.

Liu Feng turned sideways and easily avoided it, but then the mud **** became one after another, almost like shotguns, shooting towards Liu Feng, and their speed was very fast, completely jet-like.

Liu Feng hid away. The biggest weakness of these attacks was that they could only be limited to the width of the door. As long as Liu Feng didn't show up in front of the door, these things could not hurt them.

Moreover, the snails are very conscious. When they detect chemicals within their range, they will immediately activate the transformation skills, and they will not allow the chemicals to continue to spread.

The big Boss seemed to have discovered this too. The mud **** he threw out were all cleaned up by the snails, and the number of snails was much larger than the mud balls. This kind of long-range attack is very detrimental to him. Can't get the slightest cheap.

This kind of shotgun-like attack ceased. The guy seemed to be trying to lure the king into the urn. He actually gave up a few meters away from the doorway, allowing Liu Feng to see clearly. Things in the warehouse.

The things in this abandoned warehouse are really messy. All kinds of used instruments are piled together, and there are many wooden boards and weeds in them. Liu Feng even saw a pair of worn long trousers on a wooden board.

He couldn't help but cast a complaining look at Bai Youqing. Actually, the management of their city is too messy. Even the unnecessary things should be sorted out in different categories, how can they be thrown in the house like a garbage landfill.