It didn't take long for the big black dog to go out and play freely, and the unexpected happened. One day, it was already completely dark at 7 o'clock in the evening, but the big black dog had not yet come back from outside, and the family began to feel uneasy. 

The young lady and the young lady kept crying with worry, so the family of four divided into two teams, one big and one small, and searched everywhere for several hours, but in the end they still couldn't find any trace of Dahei. In the end, the couple had no choice but to comfort their two daughters and ask them not to be sad, telling them to wait until tomorrow to continue looking for the big black dog. 

After the two little guys who were crying a lot, wiping their tears and lying in the bed, finally fell asleep, the couple chatted quietly for a while, and they both felt that the big black dog might not be found again. Although the couple felt very sorry for their two precious daughters and wanted to find the big black dog back, they all felt powerless about it, so they could only hope that some miracle would happen. 

Sure enough, the family searched for another week, but they still couldn't find any trace of the big black dog, and finally Yao Zhiwen could only reluctantly announce that he had given up. Although the two little ones were very depressed, they were both sensible and did not continue to cry. 

Time soon passed another year, and the capable Yao Zhiwen bought a machine tool in partnership with a few good colleagues in order to make the family's life better, and also rented a small factory, and began to use the time after work and rest days to do a small business of mechanical repair. 

Because Yao Zhiwen's small business in addition to simple repairs, sometimes he also uses machine tools to make some parts or something, so he needs to collect all kinds of large and small steel materials as raw materials. And because the amount of materials needed is not very large, there is no need to spend time and effort to go to other places to buy, so Yao Zhiwen and his colleagues will go to all parts of the town to collect and purchase some bits and pieces of steel during their breaks. 

On this day, Yao Zhiwen and a colleague rode their bicycles together, and went out early in the morning to a house that had already inquired about living on the edge of the town to buy the steel they needed. When the two of them came to the door of this house just now, Yao Zhiwen raised his hand and was about to knock on the door to call someone, when he suddenly heard a familiar sound of a dog barking from next door to this house. 

Yao Zhiwen immediately stopped what he was doing, turned his head and looked at the sound, only to see a big black dog chained in the yard of that house, wagging its tail vigorously at him and barking loudly. And this big black dog even stood on the ground with two hind legs and jumped around, desperately grabbing Yao Zhiwen with his two front legs. 

Yao Zhiwen knew at a glance that this dog must know him, but he also knew very well that he had never been here, so he immediately felt that something was wrong. So Yao Zhiwen immediately walked over, standing on the wooden fence of the house and looked at the dog carefully, the more he looked at it, the more he felt that this was the big black dog that was lost in the family a year ago. 

The colleagues around him also saw Da Hei in Yao's house, and when he saw Yao Zhiwen walking over, he followed him closely, and when he saw Yao Zhiwen's expression, he guessed one or two, and then listened to Yao Zhiwen's explanation, and he immediately thought that Yao Zhiwen's idea was right. So the two of them discussed it and decided to buy the steel first, and then ask the seller about the origin of the dog by the way, and then make the next step. So Yao Zhiwen and his colleagues came to the seller's door again, knocked on the door and entered the house, and the steel transaction was quickly completed.

The seller's steel was sold at a good price, so when he heard Yao Zhiwen ask, he immediately happily told him about the origin of the dog next door. 

It turned out that there was only a young man living next door, and this dog came next door a year ago, and when he came, he was an adult dog. This dog is very bad, when he first came, he barked day and night, so noisy that the neighbors couldn't sleep, but they were embarrassed to go to the young man for a theory. Eventually, the dog quieted down, but he refused to eat and was so thin that he was a handful of bones. Later, the young man next door came to the veterinarian and treated it several times, and the dog returned to normal and did not die. 

Hearing this, Yao Zhiwen was even more sure of his previous suspicions, so he immediately knocked on the door with his colleagues and entered the courtyard next door. 

Yao Zhiwen called the name of the big black dog and walked straight to the big black dog. Da Hei immediately stood up and jumped on Yao Zhiwen's body, and wagged his tail vigorously, licking Yao Zhiwen's hand desperately and enthusiastically. 

At this moment, the young man who came out of the house saw everything in front of him, and he was stunned a little, and he could not even say a word. 

Yao Zhiwen and the young man politely and directly said that he wanted to buy this dog, and the young man relieved himself and said very unceremoniously that he didn't want to sell it, and he was about to drive Yao Zhiwen and his colleagues out of his yard immediately. 

At this time, Yao Zhiwen's colleagues finally couldn't hold their breath, and he immediately questioned the young man's history of the dog, and told him that Yao Zhiwen was the owner of the dog. 

The young man immediately lost his confidence when he knew that he was wrong, and his attitude softened in an instant, and he no longer dared to say anything cruel. 

Seeing this, Yao Zhiwen said to the young man kindly: "Although you stole my dog, I think you really like it and keep it well, so I don't want to blame you." Don't be afraid, I won't pursue you, or as I just said, how about I give you money to buy it? ”

At this moment, the young man finally lowered his head and apologized very embarrassedly: "Okay then, I'm sorry! ”

Yao Zhiwen stopped being verbose when he saw that the young man agreed, and directly told him: "Then so be it, I'll give you money now and take it away immediately!" ”

The young man didn't dare to look up at Yao Zhiwen's face, but still lowered his head and promised: "Well, okay!" ”

Yao Zhiwen didn't say anything anymore, he put the money directly in the young man's hand. The young man didn't say anything anymore, he immediately silently untied the chains that locked the big black, and then handed the chains to Yao Zhiwen's hands. 

In this way, Yao Zhiwen led the lost big black dog, and after saying goodbye to his colleagues, he rode a bicycle and happily rushed home. 

Da Hei ran excitedly all the way, and it didn't take long for Yao Zhiwen to lead it to the path leading to his home, and before he could enter the door of his house, Da Hei began to scream loudly. The young lady who stayed at home immediately rushed out of the house when they heard the sound, and before they could stand firmly, both of them were knocked to the ground by the big black that pounced on them. But the young ladies couldn't take care of it anymore, because they finally saw their big black dog again, and they felt so happy, they just cried and laughed and rolled together with the big black! 

The return of the big black dog made this small family full of laughter again, and the young lady once again had the company of the big black dog, and they lived happily for several years. It wasn't until her younger sister Xiao Jingrou was in the third grade of elementary school that Shen Rumeng suddenly found that something was wrong with the big black dog, because not only did it not eat much dog food, but it also had diarrhea, and it was like this for two consecutive days. From the third day, the condition of the big black dog became even worse, not only did it have symptoms of blood in the stool, but it also had fallen on the ground and began to move. 

At this moment, the whole family began to get anxious, and Yao Zhiwen immediately called the veterinarian to show Da Hei, but unfortunately, the veterinarian actually said that the situation like Da Hei should be hopeless. 

The two daughters immediately began to cry, and Xiao Jingrou took the veterinarian's hand and said, "Uncle, please, save Da Hei, don't let it die!" ”

Xiao Jingshu also said with tears in her eyes: "Uncle, you are the most powerful veterinarian, you will definitely be able to save Da Hei, right?" ”

Seeing the two daughters like this, Yao Zhiwen also begged the veterinarian and said: "Please think of a way to think of it again, I don't blame you for not being able to save it!" ”

The veterinarian thought for a moment and said, "Well, then I'll give it a shot, if it doesn't improve, then there's really nothing I can do." ”

"Okay, I'll listen to you!"

After Yao Zhiwen finished speaking, he asked his wife to pull the two daughters aside, and then helped the veterinarian hold down the big black dog lying on the ground. 

After a shot, the big black dog didn't even resist at all, and still lay motionless on the ground. After sending off the veterinarian, the family stayed by the side of the big black dog, and the two daughters were even more inseparable from each other while shedding tears and petting the big black, hoping that it would get better soon. In the end, under the persuasion of their parents, the two little tearful children reluctantly went back to the house to sleep. 

The next morning, the whole family got up early, and the first thing everyone did when they got up was to see the condition of the big black dog lying in the house. Big Black reluctantly wagged his tail at everyone, but he still didn't eat anything, and he didn't move. Although the family is very worried about the big black dog, they can only go out to school and go to work. 

When the two daughters came home from school in the afternoon, as soon as the two of them entered the house, they found that the big black dog was missing, so the young lady and the two searched everywhere inside and outside the house, and finally found their father in the vegetable garden for a long time. 

It turned out that Yao Zhiwen went home from work early today, and as soon as he entered the house, he found that the big black dog had died on the ground with a cold body. So he thought about it and decided to dig a pit in the vegetable garden first, and planned to bury the big black dog together after everyone came back. 

The two young ladies stroked the big black dog lying on the ground and was already angry, they were really crying and crying! stayed by the big black dog's side like this, and it wasn't until Shen Rumeng came back from work that the family said goodbye to the big black dog sadly.