The crystal in Chen Ran's hand is the core of the blind mouse's ability, and the blind mouse really has a heteronuclear in its body!

"Brother, what is the heterokaryon of the blind mouse?" Chen Shu couldn't wait to ask.

Chen Ran used the ship soul to firm up the blind rat heteronucleus, unfortunately, the grade was too low, and it belonged to the lowest heteronucleus.

"D-class, one star in the evolution index......"

"What? There's only one star, that's too little! Chen Shu said with great disappointment.

Chen Ran disagreed: "Although the evolution index is only one star, the blind mouse is the best mutant creature to deal with, and there are many of them, only if we work hard, we will soon be able to get together the heteronucleus." ”

Chen Ran is telling the truth, either take a risk or spend more time, in order to be stable, of course, you have to choose the latter.

"Relief, let's go on, get together the alien core of the Silence upgrade talent as soon as possible!"

The evolution index is only a relatively rough way to estimate energy, even if there are two heteronucleus that are exactly the same, there will be slight energy differences, therefore, Chen Ran estimated that it would take at least a few hundred blind mouse heteronucleus to upgrade to the fourth level talent.

The number is too large, and this is a huge test for the two siblings.

In the next period of time, Chen Ran and Chen Shu began to hunt wildly, and they even shortened their rest time by a few hours, hunting blind mice in the sewers day and night.

When you are hungry, you will nibble on dry food, and when you are thirsty, you will drink a sip of the water you carry, and the sewer is already dark, and you almost forget the time when you stay inside.

While they were resting on dry food, the two of them seized the time to rest so that the heterokaryon could replenish their energy.

Heteronuclear energy consumption is rapid, Chen Ran has not yet found a way to quickly replenish it, and the accumulation and transformation speed through the body is very slow.

The sewers under the city are intricate, and every few hours, Chen Ran will take an exit early to see where he has generally been, and he can't be too far away from the Silence.

……

"Mom, look, there's a big brother and sister there!" In the dark sewers, a little boy suddenly said to his mother.

The woman with the little boy in her arms looked in the direction of the little boy's finger, gathering her eyes vigorously, and saw two shadows flash quickly.

The woman patted the little boy's head: "Xiaoqiang is wrong, maybe he faints from hunger." ”

As soon as the woman's voice fell, the little boy's stomach really made a "cooing" sound, and the food in Hibiscus City was scarce, most of it was occupied by the people of the Destruction Sect, and the rest of the people were like rats digging garbage everywhere, just trying to survive.

"Dad went looking for food, and will be back soon." The woman comforted her, but an hour later, her companion brought back the bad news: her husband had been killed by a zombie in a store......

……

More and more sewer dwellers spotted two strange men frantically hunting blind rats, and they could only see the blurred figures of these two men, and they couldn't see their faces at all.

Compared with ordinary people hunting blind mice, these two people's actions and methods are much more clever, many residents in the sewers after the two left, clean up the blind mouse's carcass, cut it, remove the bones, an adult blind mouse is one or two hundred pounds of meat.

Ordinary hunting blind rats often adopts a teamwork method and attacks them in groups, and these two people who suddenly appear in the sewers seem to have no effort at all.

These two people are Chen Ran and Chen Shu, they simply solved a blind mouse, Chen Ran sighed: "Now, our cooperation is becoming more and more tacit, and the speed is much higher than before." ”

The sewers in this area of Guangming District have been covered with many blind mouse corpses, and Chen Ran has also identified that the meat of blind rats is edible, and they have inadvertently been good people for a while, so much blind mouse meat, enough for many people to eat for a while.

"Brother, how many blind rats are heterokaryroyclei in your bag?" Chen Shu stroked the hair in front of his forehead, the endless hunting seriously drained Chen Shu's physical strength, the weather in mid-autumn did not completely fall, and sweat soaked his clothes and hair ends.

Chen Ran roughly estimated: "There should be hundreds, let's work harder, and after holding on for a few hours, we will withdraw to the Silence." ”

The hunt has started again!

The blind rats in the Light Zone suffered the greatest slaughter today, and in front of the two awakened ones, they had almost no ability to resist, so they could only fall helplessly, and their hearts were cut open to take away the heterokary!

After a day and a night of hunting, the Chen Ran brothers and sisters finally returned to the Silence.

The huge energy exertion caused both of them to collapse, and their clothes were stained with the blood of blind rats and the dirty mud from the sewers, and the smell was very pungent.

As soon as Chen Shu returned to the Silence, he immediately rushed into the bathroom to wash himself, while Chen Ran poured out all the alienclei in the bag and embedded them in the Silence one by one to absorb them.

Receiving information from the ship soul about the progress of the talent tree in his mind, Chen Ran was very calm, if this could not light up the fourth-level talent, he would scold his mother.

"The alien energy is enough to upgrade the fourth-level talent, may I ask if you want to upgrade?" The ship spirit finally hinted at the most important message.

Almost without hesitation, he chose to upgrade, and then Chen Ran chose the overall invisible branch of the fourth-level talent without blinking.

"Congratulations on upgrading to the fourth level of talent, overall invisibility, this attribute belongs to the ability to continue to cast, continuous casting requires energy consumption, and the energy consumed per hour is five yuan."

Chen Ran's heart moved, the ship soul had never raised the question of heteronuclear energy units before, and he immediately asked: "What is the meaning of explaining the element of heteronuclear energy units?" ”

"The element quantity is a unit of heteronuclear energy, which belongs to a large unit, and there are component units below, and a component unit contains 10,000 component units."

"Scan the amount of energy carried by the Silence." Chen Ran wanted to figure out how much energy the Silence itself still had, but at present, in terms of the percentage of the talent tree, it was only three percent, and he was worried that the energy would not be enough.

"The Silence now has a heteronuclear energy of thirty yuan, can be invisible for six hours, and can sail at full speed for three hundred hours, and with reference to the lighting system and surveillance system, this number will be further reduced."

Chen Ran finally figured out the situation of the remaining energy, and also further understood the heteronuclear energy, which as a unique energy system, revealed the tip of its iceberg.

Chen Shu walked out of the bathroom, and she clearly felt the change in the silence: "Brother, succeeded?" ”

"It's successful, hurry up and rest and rest, in a few hours, let's set off to the stronghold of the Destruction Sect in the north of the city!" With the improvement of stealth ability, Chen Ran is confident that he can go anywhere that can be navigated in Furong City, and when facing relatively weak monsters, stealth is equal to invincibility!