"Medicine? Potion?" Yu Fen and Yun Ge were both shocked. What kind of potion was so magical that it could instantly kill the mutated plant?

“Yes, the medicine.” Jiang Wan took the lead and walked into the library.

When they saw the climbing rose vine struggling wildly in the library courtyard, the two were once again astonished: "Sister-in-law, what kind of potion is this? It's incredibly potent!"

With this potion, what's there to fear about mutated plants in the wild? Just spread it out and wipe them all out!

Jiang Wan seemed to have guessed what he was thinking. She glanced at him sideways and said, "You're overthinking it. This kind of potion is devastating to all living things, including the soil and ecological environment."

"Including humans as well."

So although she developed it a long time ago, she never used it.

Yu Fen couldn't help but swallow: "To people too...?"

"Yes, just a small tube is enough to make an adult disappear without a trace."

Holy crap!

Yu Fen was horrified: "Who did you just send to get this? What if they secretly kept a little bit for themselves?"

He never expected that his seemingly aloof sister-in-law would actually develop such a vicious thing!

That's terrifying!

The key issue is, what if this thing gets leaked...!

Emma, ​​he finds it terrifying just thinking about it!

Jiang Wan shook her head: "No, I only managed to develop one drop."

One drop was enough to kill a mutated plant?

The two of them were beyond shocked.

Jiang Wan remained calm: "If there are too many plants around here, they will all die."

Originally, it was designed to counter Canadian goldenrod, but unexpectedly, it ended up killing a monster.

Yun was the first to come to his senses and reminded Yu Fen, "Quickly put away its crystal; I feel something's wrong with it."

Yu Fen also sensed something was wrong with the vines on the ground. They didn't seem to be dead, but rather slightly injured. After struggling for a while, they started to lift their heads again. So, without hesitation, he quickly attacked and strangled them.

Finally, he took out a black crystal. Just by its luster and the depth of its color, you could tell that this mutated plant was no ordinary ferocious creature. Who knows how many people it had eaten here!

Most importantly, these black crystals are two interlocking pieces, so this is a level two mutated plant!

No wonder they were completely overwhelmed from the very beginning!

There are many mutated plants in the courtyard garden. They have all benefited from the fact that the climbing roses have killed humans. Their energy has been enhanced to some extent, but they have not yet been upgraded like the climbing roses.

However, because of Jiang Wan's drop of medicine, the soil was directly poisoned. The roots of all the mutated plants in the garden were corroded by the medicine. So, although there were many mutated plants and their energy was very strong, they were basically harmless now.

Yu Fen and Yun Ge teamed up and amassed a fortune of crystals in just a few minutes.

All the mutated plants in the small garden were completely wiped out.

Once inside the library, Jiang Wan became even more determined to collect all the books, as they had been severely damaged.

She started collecting books from the first room on the first floor, regardless of the category, putting them all into the tree hole space, books and shelves alike. Yu Fen and Brother Yun helped pick up the books that had fallen to the ground.

Just as she finished clearing one room and entered the next, a strong gust of wind rushed towards her. Jiang Wan's rattan bracelet's passive skill activated instantly, blocking the bloodthirsty attack for her.

Yu Fen's light shockwave followed closely behind. It turned out that several potted green ivy plants in the room had mutated and joined together to weave a net that enveloped the entire room.

Although they had consumed energy from a few humans, the energy they had consumed was not much, and Yu Fen and Brother Yun could easily kill them together.

After that, there were mutated plants in almost every room. They killed them all along the way, and Jiang Wan collected books along the way. Finally, they arrived at the two old brick and concrete buildings at the very back of the library.

This place mainly stores the city archives of Xiangcheng over the years, including various planning records.

But this area was also the most severely damaged. Although some very important files were stored in metal cabinets, in an oxygen-deficient apocalypse, how could metal cabinets withstand the arbitrary invasion of mutated plants?

"We shouldn't stay here any longer. Let's take it back first and look at it at our leisure."

Yu Fen could clearly feel a cold wind approaching; there must be mutated plants here!

Jiang Wan didn't want to get entangled with the mutated plants any longer, so she quickly put away the books.

She had just finished putting away the last bookshelf when, just as she was about to leave the room, the entire building began to shake!

Was there an earthquake?

This was Jiang Wan's first reaction.

Yu Fen and Brother Yun remained silent, each supporting her arm on either side, and jumped directly from the fifth floor.

Fortunately, Brother Yun activated his invisibility ability, so outsiders couldn't see them at all.

But the commotion here was quite significant, causing a great shock. Jiang Wan turned around to look and saw that a mutated plant had suddenly been uprooted and was attacking several buildings of the library like a madman.

She couldn't help but feel relieved; thankfully, she had packed up the books quickly!

If it had been any later, all these books would have been destroyed!

The three of them didn't even turn their heads and went straight back to the outer city camp. The mutated plants here were left for the city guards in the inner city camp to deal with themselves!

Back at the camp, Jiang Wan's life became extremely monotonous. She stayed in her room all day, spending her time either reading books to find geographical summaries of Xiangcheng and county chronicles of various counties, or doing laundry and cooking for the twins. She didn't even take care of walking the children anymore, leaving them to be completely left to their own devices.

It has to be said that adversity helps people grow. The twins are no longer as ignorant and foolish as they were at the beginning of the oxygen deprivation. Now, the brother and sister can stand on their own when they go out, and they are not afraid of encountering small mutated plants at all.

Once Jiang Xiaoshu activates her purification ability, if she's in a good mood, the silly little sister will use her sensory ability to have a mental conversation with the mutated plant; if she's not in a good mood, she'll just turn around and leave.

More than a week passed, and Jiang Wan finally figured out the approximate distribution of the cold arrow bamboo and the missing-bud arrow bamboo near Xiangcheng. She then realized that she had been neglecting the two children recently. Just as she was about to get up and go out to look for them, the door in front of her was suddenly pushed open from the outside!

She was sitting on the sofa in the living room, the same single sofa that used to be in her villa. It was very comfortable, and she loved to curl up on it to work. The sofa faced the door directly, so she was facing the person outside.

She saw Cheng Zhen staring straight at her, his face pale, his whole being like it had emerged from an icy pool, exuding a chilling aura and... a murderous aura.

"Cheng Zhen?"

She spoke hesitantly.

"Cheng Zhen!"

She quickly ran forward and caught the man who was falling straight down.