In the courtyard, Cheng Lingyu was practicing the Riyue Fist. The whistling fist wind shook all directions, and combined with the jujube technique, there was a sense of heat in the fist wind.

Cheng Yun looked at his son, and a hint of relief appeared on his old face.

"Your cultivation speed is amazing. If you continue to develop like this, you will soon enter the fourth level of Fanwu - the Luck stage."

In about twenty days, Cheng Lingyu has such a result, which is definitely not comparable to ordinary people.

"I want to take the time to go to Yuanjing again to see if I can find clues."

Cheng Lingyu's face was sweating profusely, and the firm lines added a hint of mature temperament.

"It's the end of the month soon, and the mansion will be busy. A large number of black gold and stones will be sent to Yunyang City. You can just take the time to go to Yuanjing to take a look."

Cheng Yun was a master of the soul martial arts realm in the past, but later he resigned to the Zhenwu realm and lost his due status in the Cheng family.

Because of this relationship, the father and son are not valued in the Cheng family and have no right to inquire about the mining of black gold and stones.

In the past, Cheng Yun didn't care about these things. Now that his son is able to practice and urgently needs cultivation resources, Cheng Yun began to pay attention to the details of the Black Gold Stone Mine.

In addition to qualifications, resources are also very important in cultivation.

Qualifications are born and difficult to change, but resources can be obtained after all.

Resources include many aspects, such as the cultivation environment (master), elixirs and spiritual veins, and martial arts. These are the main reasons for a person's future achievements.

If Cheng Lingyu wants to take revenge, he must first have strength, which is the fundamental problem.

The second is family relationship. After all, Cheng Zhaolong is the son of the head of the family, Cheng Feng, and a disciple of the Xuanhuo Sect.

Once Cheng Lingyu kills Cheng Zhaolong, he must consider everything that will happen next.

"When I wake up, I'll go to Yuanjing to take a look."

Cheng Lingyu was tired of practicing and fell asleep directly in the yard.

Cheng Yun smiled helplessly, ignored him and let his son sleep in the open world.

As soon as he closed his eyes, Cheng Lingyu entered deep sleep, his thoughts were shrouded in boundless darkness, and his soul was still.

In the darkness, a little light shines, making the whole world more colorful.

In addition, endless darkness is eternal loneliness, as if it is everlasting.

The breeze rippled in Cheng Lingyu's body, and the invisible airflow surrounded him, slowly lifting him up.

When Cheng Yun saw this scene, his old face showed a shock and a light of joy flashed in his eyes.

Something must have changed in his son. As long as he falls asleep, his cultivation strength will grow rapidly.

Cheng Yun was very knowledgeable back then, but he had never heard of such a strange thing. What changes did his son change in the source well?

The courtyard is quiet and no one disturbs it.

Cheng Lingyu slept for three days and three nights. After waking up, he felt strong and his strength soared. He directly entered the fourth level of Fanwu luck stage, which was unimaginable.

With one punch, the true energy was released, and a blast occurred in the void.

Cheng Lingyu showed a happy smile on his face, and his figure flew around in the courtyard, as fast as a stream of light.

Cheng Yun laughed and said, "Okay, very good. If this continues, my son will be famous all over the world and be powerful."

Cheng Lingyu practiced for half an hour and felt comfortable all over and confidently.

"I'll go to Yuanjing now."

After leaving the courtyard, Cheng Lingyu headed straight to the back mountain, but met his cousin Cheng Qinghua halfway.

"Where are Brother Qi going?"

Cheng Qinghua is thirteen years old this year, but he is already in the fifth wave of the Fanwu war, one stage higher than Cheng Lingyu.

"Go to the back mountain, why are you here?"

Cheng Lingyu was a little surprised and looked at Cheng Qinghua with confusion. The two were four years apart and had few opportunities to meet on weekdays.

"Go to Wushan to take a walk, should Brother Qi go and have a look?"

Cheng Qinghua smiled charmingly, but Cheng Lingyu felt a gloomy behind his smile.

"That's a mining area, it's not good."

Cheng Qinghua glanced around and whispered: "I heard that there is a mineral source deep in the mining area, which is a black gold source. In addition to refining weapons, if a practitioner can integrate into his body, he will have the opportunity to become copper and iron bones, which is very powerful."

Cheng Lingyu also heard of this legend, but because he was unable to practice in the past, he did not take it seriously.

"The mining area is strictly managed and you cannot break through."

Cheng Qinghua smiled and said, "Brother Seven, don't worry, I've been there a few times, there will definitely be no problem."

He grabbed Cheng Lingyu's arm, and Cheng Qinghua pulled him and ran away.

Cheng Lingyu wanted to struggle, but after a moment of thinking, he chose to give up.

There are abundant minerals near Shiyang Town, and Wushan is a major black gold stone mine.

Black gold stone is extremely hard and is one of the important materials for refining weapons. Legend has it that there is a source of active metal in the depths of Black gold stone mine, which is quite rare and precious.

If a monk can integrate this active metal source into his body, he will be expected to become an indestructible body of Vajra.

It’s just that the fusion process is very dangerous because the active metal source is extremely corrosive and not something that ordinary people can afford.

Cheng Qinghua was familiar with the road and pulled Cheng Lingyu into the underground mine area from a hidden entrance.

This is a mine cave that has been dug for a long time, gloomy and dark, with a bit weirdness.

Cheng Qinghua took several feet in one step and was very skilled in the terrain here. He pulled Cheng Lingyu forward for several miles and came to a dark and dark area.

Cheng Lingyu felt the danger and whispered: "This place is very strange, let's leave."

Cheng Qinghua smiled evilly and said, "Don't be afraid of Brother Seven, I will protect you."

Holding Cheng Lingyu's arm hard, Cheng Qinghua walked slowly, turned a corner, and many white bones appeared in front of him, piled up with corpses.

Cheng Lingyu said in shock: "What happened? How could so many people die?"

Cheng Qinghua said nothing, and a hint of haze appeared on his slightly tender face, pulling Cheng Lingyu through this quiet place.

Along the way, there were as white bones as mountains and corpses everywhere, with at least hundreds of people.

Cheng Lingyu felt a sense of vigilance in his heart, and he secretly observed Cheng Qinghua's reaction, feeling that he seemed to have bad intentions.

At this time, a silver light appeared in front of him. On a stone wall, a silver liquid metal and a purple-black liquid metal intertwined and entangled, like a dragon and a snake intersecting its neck, appearing vividly and lifelike, staring at the two people.

Cheng Qinghua's whole body was tense, and there was a sense of enthusiasm in his eyes.

Cheng Lingyu was shocked and felt a great crisis.

"Qinghua, what is this?"

"This is the legendary active metal source, one is silver and the other is purple-black. The silver metal source is unknown. The purple-black metal source should be a black gold mine source."

Cheng Lingyu said: "This thing looks very dangerous, let's go."

Cheng Qinghua smiled evilly and said, "This is a good thing. I have been studying it for a long time. How could I give up easily?"

"Are you sure you get them?"

"That's up to Brother Qi to help."

Cheng Lingyu was shocked when he heard this and blurted out: "What do you want to do?"

Cheng Qinghua smiled sinisterly and said, "What are you doing? Just ask Brother Qi to help me explore the way. Anyway, you are a waste in the Cheng family. If you can help me obtain an active metal source, it also reflects Brother Qi's value."

Cheng Qinghua waved his right arm and threw Cheng Lingyu directly at the stone wall.

Cheng Lingyu was furious. He never expected that the thirteen-year-old Cheng Qinghua would be so vicious and would use his life to explore the way for him. It was extremely cruel.

Cheng Lingyu wanted to dodge, but unfortunately he had nowhere to leverage his power in the air. In addition, the distance was very close, and he approached the stone wall in the blink of an eye and was wrapped around his body by the silver and purple-black liquid metal.

The two active metal sources are like dragons and snakes, entangling Cheng Lingyu so hard that he can't move.

Cheng Lingyu struggled with all his strength, but he fell deeper and deeper. The force of restraint made him breathe poorly and almost strangled him to death.

Cheng Qinghua paid close attention and watched the two active metal sources slowly penetrate Cheng Lingyu's body with a hot look.

This process lasted for a long time, and as a result, the purple-black active metal source entered Cheng Lingyu's body first, while the silver active metal source covered Cheng Lingyu's entire body.

When the purple-black active metal source completely disappeared, a black snake shadow flew out from the stone wall and headed straight for Cheng Qinghua.

"Snake Soul! Haha...is exactly what I want."

Cheng Qinghua flew over to meet him, and the black snake penetrated his body and merged into it.

Cheng Qinghua fell to the ground in a blink of an eye, then ejected and left alone regardless of Cheng Lingyu's life or death.

Deep in the mine cave, after Cheng Lingyu struggled without success, he gradually fell into a coma, and his whole body entered the dark world, and his soul and thoughts stopped instantly.

The silver active metal source slowly penetrated into Cheng Lingyu's body at this time, and light appeared on the stone wall. After a moment, it shattered and all the secrets disappeared.

The penetration of two active metal sources in Lingyu's whole body is changing his physique.

Cheng Lingyu knew nothing, he entered deep sleep, and saw a glimmer of light shining in the darkness.

Suddenly, a second light spot appeared, showing a faint purple color.
To be continued...