Back to the system space, Yang Yifei did not go to the Deer Cauldron World again this time, nor changed his clothes. He still wore the black leather jacket and returned to the main world directly.

He expanded his steps and quickly rushed to the location where he was mining before. Ma Yan was still mining. After half a year of nutritional supplementation, he now looks less skinny and small. Although he is still thin, he is at least no longer skinny and has some muscles.

"pony."

When Ma Yan heard Yang Yifei's scream, he looked back and saw Yang Yifei wearing black clothes, her long hair tied behind her head, looking chic and handsome.

Although he already knew that Yang Yifei was not an ordinary person, this was the first time he saw Yang Yifei with such a look and couldn't help but be stunned, "Brother, you are..."

Yang Yifei walked to Ma Yan and said in a deep voice: "Take off the iron pickaxe, brother will take you out."

When Ma Yan heard this, his whole body trembled and said in surprise: "Can we go out?"

Yang Yifei raised a finger, made a gesture of silence, and said, "Speak quietly, yes, we can go out, but with my current ability, I can only take you alone. When we go out and settle down, explore the situation in the mine, and then save others and come with me."

"Oh." Ma Yan threw away the iron pickaxe in his hand and followed Yang Yi to the outsider.

The two of them walked through the dark tunnel in a familiar way, touched the edge of the pool, and looked at the entrance of the cave on the pool. There was a hazy moonlight shining in the sky, and it was obvious that it was in the darkness.

During this period, the slaves were either mining or sleeping. No one would come here. Only during the day would they move the ore here for food.

Yang Yifei whispered in Ma Yan's ear: "You are waiting here, I'll go up and see the situation first."

Ma Yan said with some concern: "Then you have to be careful not to be discovered by them."

Yang Yifei said: "Don't worry! Brother is clear."

After saying this, his mind instantly covered his whole body. Yang Yifei floated silently upwards on the mine cave. Ma Yan felt his heart tides fluctuated and could not help himself.

It turns out that my elder brother is also a cultivator. He must have suffered some great difficulties before and was overwhelmed. Thank God, I met my elder brother.

Yang Yifei flew under the entrance of the cave, hiding on the side with a shadow. With a moving mind, he took out a military observation mirror from the storage space.

This observation mirror is a mini-type periscope, which is usually used when hiding behind a bunker, observing the situation outside the bunker, finding snipers, etc.

Yang Yifei carefully poked the top of the observation mirror out of the hole, and his eyes approached the mirror port below. After turning the observation mirror around, the situation above could be seen clearly.

There were 10 soldiers on duty next to the mine pit. They burned a brazier and the surroundings were shining brightly by the fire. However, these soldiers did not stare at the mine pit in full concentration, but sat aside and chatted, but they were also facing the mine pit.

Patrol teams patrolled back and forth everywhere in the mine, and there were also people on duty at the crossbow positions on the mountain.

It can be said that no matter what method is used, as long as you want to leave the entrance of the mine, they will definitely find it.

There is no way, now he can only rely on speed to rush. Now his mental strength can support him to fly at supersonic speed, with a speed of about 1,600 kilometers per hour, that is, Mach 1.3, and can last for more than two hours.

Use your mind to control flight. The flight speed and range have a lot to do with weight. The lighter the weight, the faster the natural speed, and the farther you fly.

1,600 kilometers per hour is his own speed of more than 150 kilograms. If Ma Yan is added, he can fly for about 1 hour and 40 minutes, and the speed can be maintained at about Mach 1.

However, if he has a gravity meteorite, he only needs to hold the meteorite in his hand, so the weight carried by his mind force is only the weight of the meteorite itself. It is expected that his flight speed and duration can be increased by 3 times, reaching about Mach 4, and the duration is 6 hours, and he can circle the earth for most of the time.

Now I can only hope that the cultivator guarding the mine is not that fast, otherwise he would have to take out a wave-energy particle bomb and fight with the other party.

After exploring the situation above, Yang Yifei landed again, waved to Ma Yan and walked aside with him, and then flipped his hands to remove two meteorites.

Yang Yifei fixed himself to the ground with his mind power, but Ma Yan suddenly felt his body lightening and his whole body floated up involuntarily. He opened his mouth and was about to exclaim, but immediately reacted and forced the exclamation into his throat without screaming.

Seeing this, Yang Yifei nodded secretly. This kid is good, he has quick reactions and perseverance, and is worth cultivating. "Come on, hold these two stones, they can make you lose weight."

Ma Yan suddenly realized and immediately grabbed the two meteorites tightly. Then Yang Yifei let go of his mind and wrapped Ma Yan in. The two of them were close together, so that the range of the mind power cover could be narrowed as much as possible.

The invisible and qualitative mind power formed a flat spindle shape, which was the shape with the least air resistance. Yang Yifei first controlled the figures of the two and flew to the center of the mine, and then suddenly activated the mind power with all his strength and suddenly soared into the sky.

"Swoosh...boom...huh..."

In one second, Yang Yifei and Ma Yan were already at an altitude of about 1,300 meters. The bobbin-shaped mind-power cover broke through the sound barrier and created a sound boom that was quite dynamic.

The 10 guards who were closer to the mine were stiff all over, and blood was spilled out of their ears and mouths. The next moment they were overturned by the waves of air. After they got out of the distance, they remained motionless and died of anger.

These unlucky guys died because they were too close to the mine pit and were directly knocked to break their eardrums and internal organs.

A little farther apart were lying on the ground with bleeding ears, screaming loudly, but they themselves could not hear any sound because they were already deaf.

People further away were temporarily deaf and tinnitus for a period of time, and then slowly recovered. The lethality of this sonic boom within a certain range is almost as good as a conventional missile.

This time the entire mine was alarmed. In the cave on the mountain wall to the north of the mine, a middle-aged man in a black suit and a middle-aged man in a gray robe flew out of the cave at the same time.

The man in the strong suit pulled out a string of afterimages behind him, as if he was slow and fast, and in an instant he had rushed to the side of the dead guards. However, the man in the robe held a long sword emitting green light in his hand, and flew out of the cave and suspended in the air.

"What happened?" the middle-aged man standing in the air asked loudly, his voice tremblingly, and instantly spread throughout the valley.

A night-time general on the mountain jumped off the cliff and rushed over and said, "Report to Mr. Song, someone flew out of the mine just now, and the movement was emitted by the person who flew out. Just the aftermath of his flying away, he killed and injured so many people."

"What did you say?" Song Zhenren's face changed drastically. He fell lightly to the man in a strong outfit. He looked at him, and his face was full of surprise.

“Huhhhh…”
Chapter completed!