Late at night, Feng Fan was cultivating the Five Elements Xuanmeng Technique in his room. The aura from the outside world was constantly sucked into Feng Fan's body, constantly running along the extremely special meridians, and finally converged in the sea of dantian qi.

Outside, the night was dark and windy, and there was silence. In an inn a few miles away, an old man in black sat in his room. Through the dim candlelight, the old man's face was as bloodless as white paper, as if he were a terminally ill and dying man.

The old man in black closed his eyes tightly, let out a violent cough, and his body looked extremely dry, as if he was about to run out of oil. The old man suddenly opened his eyes, and two strange brilliances shot out of his eyes.

"There's actually a cultivator nearby!?" the old man in black muttered, his voice full of surprise. The old man quickly released his senses, and after a while, a look of ecstasy appeared on the old man's face.

"Very good, I have just stepped into the second layer of the Qi Gathering Period, and this monk is the best candidate for my invasion. The old man in black was a little trembling because of his excitement.

Feng Fan, who was cultivating, suddenly felt a breath that quickly enveloped him, and at this moment, Feng Fan had a feeling of being completely peeped at by others, and then a little depressed, as if he was pressing a boulder in his chest.

After a while, the breath completely dissipated, and Feng Fan let out a long sigh of relief. "Could it be that there are cultivators around here?" Feng Fan suddenly had this thought in his mind, and a faint sense of foreboding arose in his heart.

On the second day, Feng Fan got up very early, and although he only slept for an hour at night, he did not feel tired at all. Feng Fan cleaned up the medical hall completely, and the sky gradually brightened.

Today, the medical center is thriving as usual, and many people who see a doctor gather outside the door of the medical center, as if the Zhongtang Medical Center is free to see a doctor today.

By noon, the patients had dispersed. Just when Feng Fan and Ding Zhongtang wanted to rest for a while, an old man in black walked in outside the door, and it was the person from the distant inn last night.

"Lang Zhong, can you take a look at me for a doctor?" The old man in black came to Ding Zhongtang's side, his footsteps were extremely slight, and there was no sound, as if a ghost was coming. When the old man in black spoke, his eyes did not look directly at Ding Zhongtang, but at Feng Fan.

Feeling the aura emanating from the old man in black, Feng Fan's heart was shocked, and the fear that he hadn't seen for a long time came to his heart. This breath is exactly the same as last night's, could it be that this old man in black is peeking at him? Feng Fan felt uneasy in his heart.

"Sit down, old man. Ding Zhongtang said hello.

"Lang Zhong, I was injured some time ago, I wonder if you can relieve my pain?" The old man in black sat down slowly, looking at Feng Fan's sharp gaze in stark contrast to his withered face, but his mouth told Ding Zhongtang the purpose of this diagnosis.

"Leave your left wrist exposed. Ding Zhongtang saw the old man in black staring at Feng Fan, first his eyes were full of coldness, and then he showed a trace of joy, and he was a little suspicious in his heart, not knowing why this old man in black was like this. The old man in black retracted his gaze and slowly rolled up his left sleeve, revealing his white and bloodless left wrist.

"I don't know if I should say something or not?" Ding Zhongtang asked with a frown after cutting the pulses on both wrists of the old man in black.

"If you have something to say, it doesn't hurt to say it, you don't have to worry about anything. The old man in black said impatiently.

"The pulse of the old man is different from ordinary people, and it seems that it is not something that ordinary people can have. And you have a strange injury, I'm really sorry for you, I've been practicing medicine for so many years, and this kind of injury is the first time I've encountered it, so there's nothing I can do about it!" Ding Zhongtang said in a low voice with a hint of apology on his face.

"Since Lang Zhong has nothing to do, and the old man has nothing to say, he will leave. To Ding Zhongtang's surprise, the old man in black didn't have any reproach, but directly got up to say goodbye, and then left quickly, without even asking any questions about this injury.

"This is really a weirdo!" Ding Zhongtang muttered as he looked at the back of the old man in black who had disappeared for a long time. And after the old man in black left, the depressed feeling in Feng Fan's heart disappeared.

"Very good, beyond my expectations, it turned out to be such a young body. And it is true that I have just stepped into the second layer of the Qi Gathering Period, God really helps me, the old man really deserves to die! Take a day off, and I will invade the body tonight. In the inn a few miles away, the face of the old man in black flashed with excitement, and he whispered to himself, as if Zhu Bajie's expression when he discovered the ginseng fruit. If this expression and the words just now let Feng Fan know, he would definitely vomit.

The so-called invasion of the body, in the cultivation realm, is to snatch the bodies of other monks through certain means. The reason for the invasion is that the body of the person who committed the invasion has suffered some kind of incurable heavy injury, and a new monk's body must be found within a certain period of time, otherwise the body of the person who committed the invasion will gradually die out after the body of the person who committed the invasion will die.

The monk who invades the body first carries out a divine attack on the invaded person, completely suppresses the soul of the invader, and then enters the opponent's body, and after a period of assimilation, gradually obliterates the divine consciousness of the invader.

There are certain restrictions on the invasion of the body, and the cultivation of the person who carries out the invasion must be higher than that of the invaded. It is better that the difference is not too big, otherwise even if the soul of the person who carried out the invasion enters the body of the invaded, it will cause some adverse consequences, so the cultivation of the person who invades the body should not exceed the two levels of the invaded.

If the cultivation of the person who commits the invasion is weaker than that of the person who is invaded, the invasion will definitely end in failure. The higher the cultivation of the person who carried out the invasion of the body within the appropriate range, the better, because the disparity in the cultivation can make the success rate of the invasion higher and the less adverse consequences left, and the faster the cultivation of the person who invades the body after the invasion will recover to the pre-invasion body.

In addition, a monk can only carry out one invasion in one realm, that is, whether it is in the mortal cultivation realm, the immortal demon realm, or the holy realm, he can only carry out it once separately.

The old man in black was originally a casual cultivator, and the so-called casual cultivation is a monk who is not attached to any sect or family, and this kind of monk cultivates alone. One day, a few years after the old man in black broke through to the eighth layer of the Qi Gathering Period, he was attacked by other cultivators. Although he escaped with all his might, not only did his body suffer heavy damage, but his soul was damaged, and at this time, the actual cultivation of the old man in black could only reach the fourth layer of the Qi Gathering Period.