Global Catastrophe: I Am Cultivating Immortals in the Refuge

　　 is located 27,000 meters below the earth, and here is a space extending to the surroundings.

On the ground of 　　 space, there is a black wolf!

　　 However, these strange wolves are different from all known wolves.

They have a wolf-like mouth, no ears, a large lion-like body, and dark hair. However, because the underground is too dim, even unmanned surveillance drones with lights on cannot capture the true appearance of these unknown animals clearly. Come down.

　　 It's just that, looking around, there are actually such strange wolves on the surrounding ground!

　　 This shows how terrifying the number is!

　　……

　　 Looking at this scene, Chen Nuo was silent.

These ones…

　　 is the beast in the core of the earth? !

　　 What species is this?

　　 was shocked, but no one could answer his question.

　　 Putting away his thoughts, Chen Nuo controlled the unmanned reconnaissance plane to fly outside.

　　 Now he has some answers in his mind, so he decided to put in the drone fighters to hunt down these monsters in advance.

　　 After all, these, for him, are all upgrade points!

　　 However, the only thing that worries Chen Nuo is the attack power of the current unmanned combat aircraft...

　　 But, because currently the only weapon I can use to hunt these monsters is an unmanned fighter...

　　 So, he finally decided to take the plunge, even if it might damage the unmanned fighter jet.

　　……

　　 2045, January, 13th.

　　 It is the sixth day after the first wave of cataclysm, and it is also the last day to the bottom of the underground core of the beast riot.

　　 Tonight, the underground core beasts will rush out from the underground and hunt humans!

　　 4: 32 minutes.

　　 Chen Nuo, who was sitting on the sofa, quit the training state. The reason why he didn't sleep last night was because he didn't feel sleepy after entering the training state, but he was also very energetic after exiting the training state.

　　 This is an incomparable effect when sleeping.

　　Furthermore, now, he is about to put in the unmanned fighter, so he didn't sleep last night.

　　 At this time, Chen Nuo loaded the appearance of the monsters detected by the unmanned reconnaissance aircraft last night into the unmanned combat aircraft and then released the unmanned combat aircraft from the shelter.

　　 Because after the upgrade, the unmanned fighter jet can identify the enemy to attack, and Chen Nuo does not need to operate it himself.

　　 This is not only simple, it can also increase the strength of unmanned fighter jets to the limit.

　　 Of course, in addition to launching unmanned fighter jets, he also dropped unmanned reconnaissance aircraft.

　　 After all, he needs to watch what they are fighting, so that he can take back the drone in time when the situation is not good.

　　……

　　 At four o'clock, the sky was still pitch black, not only that, but also a bit cold.

　　 At this time, three unmanned fighter jets and one unmanned reconnaissance aircraft quickly entered the black hole, making it impossible for the patrolling soldiers to detect it.

　　 Entering the black hole, the four little guys did not stay for half a minute and dived directly.

　　 They were very fast, and they came to a position of fifteen kilometers in less than an hour.

　　 Then, they stopped.

　　 Under the light of the reconnaissance plane, strange birds appeared on Chen Nuo's computer on the surrounding walls.

　　 In response, Chen Nuo controlled the unmanned reconnaissance aircraft to fly upwards, and the three unmanned fighter jets were ready to fight underneath.

　　 When the unmanned reconnaissance aircraft came to a position one or two hundred meters above, Chen Nuo pressed the button that had already prompted him to attack!

　　In an instant, four or five small bullet tubes popped out under the fuselage of the three drones.

　　 Immediately afterwards, a round of bullets cut through the night and bombed towards the surrounding walls!

Da da da!

　　 Gunshots resounded throughout the black hole!

　　 bullets, shooting at the surrounding walls like a storm!

　　 To be precise, it was shooting at the strange bird on the wall!

　　 In an instant, countless strange birds fluttered down from the wall with huge wings. Among them, countless strange birds' blood-red eyes were full of anger, and then they opened their sharp mouths and screamed!

　　 Yin!

　　 Suddenly, the terrifying sound of the strange bird resounded through the black hole!

　　 At that moment, Chen Nuo also saw the appearance of these strange birds clearly!

　　 That is a huge strange bird with huge wings, a black head like a crow, and a sharp mouth like a sword.

　　 Seeing this, Chen Nuo's pupils couldn't help shrinking slightly.

These ones…

　　 is a species that humans have never seen before!

　　 "Ding, you killed a strange bird and got five upgrade points!"

　　 "Ding, you killed a strange bird and got five upgrade points!"

　　 "Ding, you killed a strange bird and got five upgrade points!"

　　……

　　 Just when he was stunned, this kind of beep sounded in his ear for the first time.

　　 But soon, Chen Nuo was stunned by the projection on the computer in front of him.

　　 Because these strange birds are all awakened by the sound of fighting!

　　 In an instant, in the dark black hole below, the strange black birds that were originally attached to the wall opened their blood-red eyes, and then came down from the wall, fluttering huge wings and killing them towards the drone!

　　 In response, three tubes that were twice as large as the barrels popped out beside the barrels under the fuselage of the unmanned combat aircraft!

　　 That is a cannonball tube!

　　 Seeing this, Chen Nuo was a little surprised, but immediately after seeing that three small missile guns that were slightly larger than the bullet were fired out of the shell tube!

　　 Strange birds fluttered their wings and rushed ~www.readwn.com~ and hit the cannonball, causing a dazzling explosion in an instant!

　　 Boom!

　　 The explosion sounded suddenly!

　　 Thick smoke was everywhere, and every strange bird was injured or killed by the explosion of the shell.

　　 However, the number of strange birds is too much, just like a fountain that is constantly pouring in.

　　 For this reason, several strange birds took the opportunity to break through the line of defense and killed them, but the unmanned combat aircraft had very powerful combat capabilities, and easily avoided the attacks of the strange birds, and then killed the strange birds.

　　Yes, the number of these strange birds is really outrageous, and they are so fast that it didn't take long for the three unmanned fighter jets to be suppressed and had to fly upwards.

　　 Looking down, countless strange birds are struggling to kill, the scene is extremely horrible!

　　 Chen Nuo was taken aback by this scene.

　　 Although the defensive power of the strange bird is very weak, it only takes a few bullets to kill it, but their speed is extremely fast, the number is large, and the attack power... should be no worse than the attack power of the lion!

　　 During the analysis, the strange birds in the computer kept approaching the unmanned fighter, causing the unmanned fighter and unmanned reconnaissance aircraft to retreat upward.

　　 At the same time, the sound of bombing and bullets continued to sound, of course, there was also the angry chirping of strange birds.

　　 At this time, as the strange birds are constantly approaching, the unmanned fighter and unmanned reconnaissance aircraft are forced to rise. At this time, they have reached a depth of five kilometers!

　　In other words, there are still five kilometers to fly out of the black hole!

　　 However, the group of strange birds in front of them did not even give up at this time!

　　 Chen Nuo was stunned.

　　 "This is..." His face was dull, as if thinking of something, he hurriedly gave the unmanned fighter and reconnaissance aircraft an order to retreat!