Although the grade of the mutant giant tree is immortal, it does not rely on the main body to fight, but by producing a green-skinned pig demon.

After not being guarded by the green-skinned pig demon, the mutant giant tree couldn't even defend itself in front of Xiao Zi, and was soon demolished by Xiao Zi.

When Xiao Zi completely demolished the mutant giant tree, Liu Wen also obtained an item similar to the Heart of Nature.

However, it is a higher level than the Heart of Nature, the Heart of the Immortal Tree.

Through Xiao Zi, Liu Wen explored the specific effect of the heart of the immortal tree.

Speaking of efficacy, its function is to directly elevate the mutated plants of the spiritual product to the immortal product.

"Haha, there is a loss, there is a gain, God is fair, Xiaozi, it's yours!"

From Xiao Zi's side, after getting the specific effect of the Heart of the Immortal Tree, the corners of Liu Wen's mouth rose, and the depressed mood of not being able to subdue the mutant giant tree before also recovered all of a sudden.

Xiao Zi, as the main force under Liu Wen, is slowly facing elimination because of the level, which makes Liu Wen a little anxious.

Now, with this heart of immortal wood and improving Xiao Zi's grade, Xiao Zi can play an absolute main battle position here for a long time in Liu Wen.

Xiao Zi couldn't speak, if it wasn't for Liu Wen's refusal before, it would have devoured the heart of the immortal tree.

At this time, with Liu Wen's permission, Xiao Zi stretched out vines and kept rubbing Liu Wen's cheeks, and a happy emotion appeared in Liu Wen's heart directly through plant energy.

Purple is different from other mutant plants in that it does not have a body.

Normal spiritual mutant plants all use the heart of nature, and if they use the heart of the fairy tree, they will automatically upgrade the heart of nature to the heart of the fairy tree, and in this process, these mutated plants will sleep for a while.

And Xiao Zi, after absorbing the heart of the immortal tree, directly converted a large amount of energy into origin energy.

In this way, Xiao Zi did not have to fall into a long period of hibernation, just a few minutes, and she was promoted to the immortal product.

After Xiao Zi advanced to the immortal product, like the mutant beast, the grade increased, but the level regressed.

Its level was originally the fourth level of the spirit product, but now it has become the third level of the immortal product.

However, the amount of extraction essence required for Xiao Zi's upgrade has not changed, just like upgrading from the fourth level of the spirit product to the fifth level, Xiao Zi, who is upgraded from the third level of the immortal product to the fourth level of the immortal product, still needs one billion units of extract essence.

Fortunately, Xiao Zi's grade has been improved, and the 200 million units of extract essence that Xiao Zi absorbed before are still there, so that Xiao Zi's upgrade only needs 800 million units.

Previously, Liu Wen wanted to subdue the mutant giant tree, so that Xiao Zi left 2.2 billion units of extraction essence, and at this time, it also had a place to use.

Liu Wen directly let Xiao Zi absorb about 800 million units of extraction essence, and directly let Xiao Zi advance to the fourth level of immortal products.

Xiao Zi, who is at the fourth level of the immortal product, can exert the power of one hundred and twenty-eight people even if he does not use Liu Wen's blessing plant ability.

What excites Liu Wen the most is not the improvement of Xiao Zi's strength, but the thousand upgrade fruits that Xiao Zi brought after this level increase.

The Rank Enhancement Fruit is currently the most scarce resource for Liu Wen here, and these thousand Rank Fruits can make Liu Wen and his team have a significant improvement.

However, now that he has a thousand Rank Enhancement Fruits at a time, which is different from the last hundred Fruits, Liu Wen has to calculate it carefully.

"Moo!"

"Moo!"

"Moo..."

Liu Wen was still in a very excited state, but there were a large number of cow mutant beasts screaming in the distance.

"Prepare for battle!"

didn't care about exploring his own results, Liu Wen directly took Jiang Ziqiu, as well as Milk Bean and Xiaoying, to Liang Wenna and Jiang Xue.

At this time, Jiang Xue had recovered a lot, her eyes were swollen from crying, and the loss on her face proved that her mood had just improved.

"How can there be so many mutant cows?"

Liang Wenna, who did not participate in the battle just now, came to Liu Wen's side and said to Liu Wen with a frown.

"A group of local chickens and dogs, although there are a lot of these mutant cattle, only more than half of them are kings, and there are a few and half of them are only top-grade and third-level, and they are simply sending us food!"

After Liang Wenna, Jiang Ziqiu also flew to Liu Wen's side, looked at the mutant cattle that were approaching, pursed his lips with some disdain, and then spoke.

It's no wonder that Jiang Ziqiu doesn't look down on these mutant cows, but he has just finished fighting with the green-skinned pig demon.

Although the number of green-skinned pig demons is less than one-third of that of this group of mutant cattle, among these green-skinned pig demons, there are more than a thousand spiritual products, and there are ten immortal products.

On the other hand, this mutant herd does not have a single spiritual product, so it is no wonder that Jiang Ziqiu looks down on them.

In Jiang Ziqiu's mind, Xiao Zi alone can solve all these mutant cows.

"Xiao Zi!"

Liu Wen didn't answer Jiang Ziqiu and Liang Wenna's words, but his eyes hesitated slightly, and then he summoned Xiao Zi.

Xiaozi's side has been following Liu Wen for a long time, even if it doesn't need Liu Wen to explain it personally, it understands what Liu Wen means.

As soon as Liu Wen's voice fell, Xiao Zi frantically erupted into splitting vines, and soon turned into an aerial tentacle monster with two pairs of huge wings.

Xiao Zi's current number of vines is nearly a million, and with only a pair of wings, it is difficult to support it to fly freely in the air.

Therefore, under Liu Wen's guidance, Xiao Zi has already begun to use two pairs of wings.

Xiao Zi, who was flying in the sky, soon came to the top of the mutant cow herd, and then began to attack these mutant cows frantically.

Xiao Zi, who has the power of one hundred and twenty-eight people, does not need the blessing of Liu Wen's plant ability, and dealing with these mutant cows who are only six or seven levels of Wang Pin at the highest level is simply a second kill.

"How can Liu Wen be so strong? Why? ”

"It's over, it's over..."

Mutant herds obviously don't appear here so unexpectedly, they are controlled.

And on the side of the Ji City base, the only person who can control tens of thousands of mutant cows is Zhang Zhengping, the beast walker.

The words were divided into two ends, a few hours ago, through Zhang Zhengping's lobbying, Zhu Guanghui and Sun Ce were gathered together by him, and the three important bigwigs in the Jishi base discussed for a long time, and finally came up with a set of plans to deal with Liu Wen.

When Zhang Zhengping and the others had just studied the plan to deal with Liu Wen, they got the news from the spies that Liu Wen's team actually left the Jiangnan Fortress.

After getting the news that Liu Wen's team had left the Jishi base, Zhang Zhengping's side was suddenly excited, as soon as they worked out a plan to deal with Liu Wen, Liu Wen left the Jishi base, which was a godsend for them.

In other words, in their hearts, this is Liu Wen's own anxious death.

So, Zhang Zhengping and the three of them, without thinking about it, lit up the people and chased Liu Wen out of the Jishi base, ready to implement the plan they had designed.