Volcanic eruptions are a manifestation of crustal movement due to the release of ejecta such as magma from a crater to the surface in a short period of time. Due to the large amount of volatile matter contained in the magma, coupled with the confining pressure of the overlying rock layer, these volatiles are dissolved in the magma and cannot overflow, when the magma rises close to the surface, the pressure decreases, and the volatile matter is released sharply, so a volcanic eruption is formed.

At this time, Yang Tianlong was also surprised to find that the system upgrade was stuck at 98% of the progress, and there seemed to be no sign of increase at all.

Seeing this, Vasily and Hank hurriedly pulled the plane, but they found that it was difficult for the helicopter to climb again due to the cold snap and the cross-current caused by the volcano.

"Oops. Vasily, as the main pilot, couldn't help but scream, he knew that if they didn't fly out of this airspace again, they would only be swallowed by the huge ash that awaited.

Hank also saw Vasily's predicament, and he quickly pulled the rudder stick, but the plane had no power at all.

The foreheads of the two began to be covered with dense sweat, and the situation was in a desperate situation.

Yang Tianlong also saw the reaction of the two people, he couldn't help but look at the volcano below him, which had begun to spread out fiery red magma, which melted the surrounding snow blocks in large chunks, and countless snow blocks fell down under the violent crustal movement and the high temperature of the molten magma.

Suddenly, at this moment, only a loud noise was heard, and although they were in the air, they still felt the impact of the volcanic eruption to varying degrees.

A magma stone of hundreds of kilograms was thrown high into the sky, less than thirty meters away from them.

After flying to the highest altitude, the magma stone is in free fall like a meteorite in space, dragging a long cloud of smoke behind it.

"Fack, this damn engine. Vasily couldn't help but curse.

After the first magma stone flew into the sky, soon, countless magma stones flew into the sky under the influence of a huge force, these scenery was undoubtedly beautiful for Siman who was standing in the distance, but for Yang Tianlong who was in a predicament, it was a disaster.

"Host, is it beautiful?" Just as the helicopter was trying to get rid of the effects of the cold snap and the cross current, the voice in Yang Tianlong's head rang out.

"Damn, what is this?" Yang Tianlong couldn't help but scold.

"This is a necessary step to upgrade, the access point has been fully activated, you can rest assured, I will be absolutely safe for you, and soon, in less than two minutes, I will be able to upgrade." The system looked proud, but they didn't know that Vasily and Hank were anxious like ants on a hot pot.

"Host, you stick your head out the window. The system reminded.

"Sticking out the window?" Yang Tianlong couldn't help but be stunned.

"That's right, stick out the window. The system nodded, and then gave him a big thumbs up.

"Okay. Yang Tianlong said as he opened the porthole.

"Hey, boss, don't open it. Hank shouted.

Before Yang Tianlong could reply, he saw a gust of cold wind pouring into the cabin, and in an instant, the temperature in the cabin dropped several degrees.

"Hey, man, don't worry. I'll close it soon. After Yang Tianlong finished speaking, he stuck his head out of the window.

At this moment, the helicopter was basically surrounded by thick smoke, and countless magma stones flew into the sky, reflecting the surrounding space extremely brightly.

Less than five seconds after Yang Tianlong's head was sticking out of the window, he saw a fist-sized magma stone coming straight towards his head.

Yang Tianlong didn't seem to pay attention, but Hank found out, and he couldn't help but shout, "Boss, pay attention." ”

"What's wrong?" Yang Tianlong was stunned for a moment, and then turned his head back a little.

The magma stone hit him in the head with unmistakable accuracy.

Hank and Vasily were so frightened that they forgot to operate the rudder and lever in their hands.

Yang Tianlong also sensed the presence of a foreign object, but he only felt a ray of light shining into his head, activating all the cells in his head.

Instantly, a voice rang in my ears.

"Congratulations to the host for completing the upgrade. ”

As soon as he heard this, Yang Tianlong hurriedly checked it, and sure enough, the progress bar was 100% complete.

The magma stone outside was still flying, and Yang Tianlong, who had already completed the system upgrade, was so frightened that he hurriedly closed the porthole all at once.

"Boss, are you okay?" Hank's eyes widened, just now it was clear that the fist-sized magma stone had hit Yang Tianlong's head, but now he was unscathed, could it be that he was dazzled?

Hank couldn't help but rub his eyes again, Yang Tianlong in front of him had changed to a calm look, as if nothing had happened.

It seems that he is really dazzled.

"Boss, sit tight, the engine power of the plane is not working, I have to descend in altitude. Vasily knew that the plane could no longer be raised, and with his experience in piloting, he was ready to lower the flight altitude.

This is a very dangerous move, as the lower the altitude, the higher the probability of being hit by magma stone.

But at this point, there was no other way for them.

"Come on, let the storm come harder. Yang Tianlong nodded at them and said loudly.

Vasily and Hank couldn't help but nod, and then pulled the rudder, only to see that the flight altitude of the plane instantly decreased a lot.

"Bang......" I heard a loud bang, and it seemed that the plane had been hit by the magma stone, only to see its balance lose again.

Thanks to the fact that the three of them sat relatively firmly, so that they would not fall down.

Vasily was not too afraid, he knew that now was not the time to think about the problem, but to race against time to restore the balance and power of the plane as soon as possible, and no matter how bad it was, they would have to land the plane firmly at the foot of the mountain.

"Look, the magma stone has flowed halfway up the mountain. Hank's eyes were sharp, and he immediately spotted the molten slurry halfway up the mountain.

Fiery red molten lava spreads everywhere on the peaks of Kabul, countless rolling stones roll down, and billowing smoke rises from the main peak, giving people a sense of the end of the world when you look at it casually.

Looking at the fiery magma outside the window, Yang Tianlong and the others suddenly felt that the temperature in the cabin had risen a lot.

Vasily couldn't help but look out the window, and when he saw the scene outside the window, he couldn't help but laugh.

"Haha, the lava has flowed out. ”

The outflow of magma means that the dynamics of the earth's crustal movement are weakened, and it also means that the magma stones will no longer fly sideways as they did just now.

In the blink of an eye, the altitude of the plane had dropped to about 3,000 meters, and it was almost 1 kilometer away from the erupting volcano.

By feeling, they knew they were out of danger.

As soon as Vasily turned the rudder, soon the helicopter was flying through the canyon and straight to its destination.