I don't know how long it took, Ning Tao slowly opened his eyes. He struggled to get up from the ground and looked at the wound on his right wrist, the wound that had been bitten by the black dog had already scarred, but there was still a faint pain in the wound.

"Damn mad dog!" Ning Tao got angry when he thought of the black dog.

Rumble!

Ning Tao's mind shook suddenly, as if a door had been opened, and something rushed in like a tide!

It's a smell, a variety of smells.

He smelled blood, disinfectant potions, dust, plastic, iron, chemicals, and even his own body......

He can't count how many scents rush into his nose and are then processed by his brain into corresponding information, some clear, some vague, some familiar, some unfamiliar, never smelled.

"I ......" Ning Tao was stunned on the spot.

He remembered the black dog and the knowledge related to dogs.

A dog's nose can sniff out two million different scents and can find and lock on to the scents they are looking for in complex scents. Dogs can smell 1/100 million of what humans can smell.

"Could it be...... Biting my dog...... It can't be a roaring dog, right?" Ning Tao's mind suddenly popped up with such a strange thought.

That's right......

That ungrateful dog!

Ning Tao's nose twitched slightly, and in an instant, he found the residual scent of the dog from hundreds or thousands of complex smells. The smell was like footprints left in the air, stretching all the way down the stairwell.

Ning Tao followed the scent of the black dog to the door of the hut, and then he was surprised to find that there was a very strange blood stain on the ground, which looked like an arrow indicating the direction!

Ning Tao had no intention of looking for the black dog, but after seeing the bloodstains that looked like arrows, he changed his attention and chased him out following the scent left by the black dog.

Outside the laboratory building, the bright moonlight shrouded the campus.

Ning Tao looked at the time on his phone, only to find that he had been in a coma for almost five hours.

The scent left by the black dog extended in the direction of the school gate, and Ning Tao locked on the smell that it left on the ground and chased it all the way. Although he didn't want to admit it, he was like a well-trained search dog now.

Ning Tao walked out of the school gate, crossed several streets, and finally tracked down a hill behind a community.

Under the moonlight, the trees and rocks of the mountain forest are hazy, and a small old dirt road stretches upwards. The night wind blows, and the leaves shake and whimper.

Ning Tao walked on the path, listening to the sound of a ghost crying, his heart was a little empty, he cheered himself up as he walked, "How can there be a ghost in this world? I haven't done a bad thing, and even if there is, I'm not afraid...... I've got to find the black dog, I've got to figure out what's going on......"

Halfway up the mountain, an old mansion appeared on a flat ground on the mountainside. The mud and earth walls, the hedged courtyard wall covered with honeysuckle, the courtyard gate did not know that it had existed for hundreds of years, mottled and decayed.

There were no lights in the old house, it was pitch black.

The smell of black dogs stopped in the courtyard.

Ning Tao came to the gate of the courtyard and knocked on the door with the courage, "Is there anyone?"

No one responded.

Ning Tao reached out and knocked on the door again, "I'm in." ”

At this moment, the lights came on in a room, and an old man's voice came, "Who? ”

Ning Tao's tense nerves relaxed slightly, and he said, "Old man, I am a student of Shancheng Medical University, and I was bitten by your dog. ”

"You're asking for money?" said the old man's voice.

Ning Tao hurriedly said: "No, no, no, I just want to see that dog, I don't want money." ”

"Come in, the door is not bolted. ”

Ning Tao stretched out his hand and pushed the door, the door opened, and he stepped over the threshold and walked towards the room with the lights on.

The door of the room opened, and an old man appeared at the door, with white hair, dressed in a Tang costume, and had the air of an artist who lived in seclusion in the mountains and forests.

This room is also quite ancient, with wooden beams and walls, landscape calligraphy and paintings, and traces of erosion of time can be seen everywhere. The furnishings in the room were simple, with only a square table, four stools, and a shrine. Strangely enough, the shrine is not dedicated to the tablets of gods and ancestors, but to a rather old-looking thread-bound book.

These are all impressions at a glance, and Ning Tao is not easy to look at, so he said straight to the point: "Old man, I want to see your dog's ......"

Thump!

The old man fell straight to the ground.

"Old man?" Ning Tao exclaimed, and hurriedly entered the house to help the old man, but the old man lay motionless on the ground, and he couldn't get up even if he pulled it.

Ning Tao knelt beside the old man and reached out to probe the old man's nostrils, but the old man was no longer breathing. He then reached out to touch the old man's carotid artery, and the old man's pulse stopped beating.

"Dead?" Ning Tao's heart thumped and almost jumped out of his throat.

However, he is a person who studies medicine after all, and he has also experienced the dissection of corpses and sleeping with corpses, so he quickly calmed down, supported the old man's chest with both hands and pressed, and then did artificial respiration to help the old man's cardiopulmonary resuscitation.

After tossing for about a minute, a strange sound came out of the old man's throat, and then there was a heartbeat and breathing, and his eyes opened.

Ning Tao took out his mobile phone and prepared to call the ambulance.

The old man suddenly reached out and grabbed Ning Tao's wrist, and said in a weak voice, "Young man, don't call an ambulance...... I don't go to the hospital......"

Ning Tao said: "How can this work? Your current situation is very dangerous, you have to go to the hospital for examination and hospitalization. ”

The old man shook his head, his voice staccato and "Ahem, young man...... I'm ninety-nine years old, I'm already running out of oil, and I could die at any time, ahem...... What does it make if I don't go to the hospital? I don't want to die in a hospital bed...... Besides, I don't have the money to be hospitalized......"

Ning Tao said worriedly: "But ......"

"Young man, do me a favor, go get the medical book on the shrine...... Give it to me. ”

Ning Tao couldn't refuse, so he got up and took the medical book from the shrine and put it in the old man's hand. He glanced at the medical book, too, but there was not even a title on the yellowed cover.

The old man's voice grew weaker and weaker, "Ahem...... Young man, you are a good person, I Chen Pingdao do not owe favors to anyone, you saved me, I want to repay you for saving your life...... My ancestors also studied medicine, and passed down this anonymous medical book and a clinic, I have no children and no daughters, so I will give them to you tonight. ”

"Huh?" Ning Tao suddenly panicked, "No, no, no, old man, you misunderstood, I am a medical student, it is my duty to save lives and help the wounded, I can't ask for your things." ”

The old man who claimed to be Chen Pingdao blinked his eyes, and two old tears suddenly burst out of his eyes, and he choked up and said: "Tonight is my ultimate day, I, I am going to die, do you want me to hate Jiuquan? You, how can you let me go to see my ancestors...... Woohoo......"

Ning Tao was already in a state of confusion, he was here to find the dog, how did things turn out like this?

"Huh...... ......" Chen Pingdao's throat made a sound of difficulty breathing, and his eyes began to roll, but he still tried to speak, "You, you go to the drawer under the table and take out the contract...... If you don't accept my medical book clinic today, I, I won't be blind, and I will haunt you as a ghost!"

"I'll get it, I'll get it, don't get excited, you'll be fine. Ning Tao hurriedly went to the square table, opened the drawer and took out the things that were placed in the drawer.

It was a contract for the transfer of real estate that had been prepared for a long time, and there was even a pen.

"Sign, sign...... I'm dying...... Sign quickly!" Chen Pingdao urged in a trembling voice, looking like he might lose his breath at any time.

Ning Tao opened the contract and took a look, it was indeed a real estate transfer contract, the content was very simple, roughly said that Chen Pingdao wanted to transfer the ownership of a "Tianwai Clinic" located on Huayuan Street to someone, and the signature was valid. The contract also has the seal of the notary office and Chen Pingdao's signature, which is very formal.

Ning Tao was worried that the old man would be emotional, and there would be something wrong with his heart, so he gritted his teeth and signed the contract with a pen.

Chen Pingdao said in a trembling voice: "Young man, you and I are considered to have a fate, I have no wine here, there is tea on the table, you make two cups, we will make a glass of tea instead of wine, I respect our fate, I have no regrets on the Huangquan Road...... Ahem......"

Ning Tao's mood was also infected, sour. He twisted the teapot on the table and brewed two cups of tea, then helped Chen Pingdao up and leaned against his arms, and drank the tea in the cup in one gulp after clinking cups.

The taste of the tea soup is fragrant and fragrant, and the entrance has a refreshing coolness that moistens the heart, which is very peculiar. After a cup of tea, Ning Tao felt that his whole body was transparent and comfortable, and he took the opportunity to divert the old man's attention, "Old man, what kind of tea is this?"

Chen Pingdao's voice didn't tremble at all, "The tea is ordinary bamboo leaf green, but I put a little medicine in the tea." ”

Ning Tao was stunned for a moment, "Why are you ...... What medicine?"

Chen Pingdao suddenly got up from Ning Tao's arms, "Don't be nervous, it's just a small Nirvana Pill, it has the effect of washing the marrow and cutting the scriptures, it can remove the toxins in your body, awaken your innate spirituality and talent, enhance your strength and speed, and make your nose and eyes smarter." In a word, it is a must-take foundation medicine for your monastic journey. I also gave you a little bit of cultivation in that mouthful, which can be regarded as compensation. Also, you remember that the longer you wake up and go to the clinic, the worse the consequences. ”

"You liar...... Ning Tao didn't say a word, and lay on the ground with a bang.

"Lao Tzu is finally free! The sky has eyes! Hahaha!" Chen Pingdao's voice was like crazy, and it was like two people before.

Ning Tao faintly heard Chen Pingdao's voice, and then his consciousness completely fell into darkness......