Following the driver's guidance, we followed the old streets and alleys left in the forties and fifties of the last century in the Berlin city, and finally saw a gray-haired figure with a rickety back in a garbage dump area, squatting in front of the garbage can groping for something, he was wearing a half-new but outdated old man's suit, and the sweat and sour smell of not changing his clothes for a few days could not hide the smell of engine oil that seemed to be revealed in his bones.

Although it has only been a few days away from home, it is always very exciting to meet old acquaintances in other places, especially for us who have just experienced twists and turns all the way to this place, so Li Heigou, who regards Shi Tieling as his half father and future father-in-law, approached the past without saying a word, and I also shouted "Old Shi!" and accelerated the pace under my feet, even Xie Erdon, who has always been alienated and indifferent in his feelings, and is unfamiliar with the white-eyed wolf, is inevitably happy to meet acquaintances in a foreign country, and tried to jump forward twice......

The three of us trotted all the way to the back of Shi Tieling, and the old stone who heard others calling him turned his head in distraction, but when he saw that it was us, the old guy couldn't hide his excitement, and the broken dial in his hand jumped up, and grabbed my arm with a trembling hand.

Unfortunately, instead of "I finally saw you!" or "Why did you come!", the old guy said rightly: "Borrow some money, buy two hundred liters of gasoline and fifteen secondary transistors, I'll be useful!"

Well, borrowing money when we meet is really more beautiful and ruinous, so I couldn't say anything about the situation with "old comrade, you have worked hard!", "We're late!", and I had to ask rhetorically: "Why are you buying so ......much gasoline?"

Anyway, seeing that Shi Tieling's steps are now vague and unsteady, and the hand holding my arm can't bear the strength. I knew that the old man had been hungry because he hadn't eaten for too long, and this kind of thing happened from time to time in our institute, and I don't know how many times a year after a year had been dragged out of the various real rooms, these old guys who had forgotten to sleep and eat for research, but who had not died of hunger. Naturally, he was experienced in dealing with this kind of problem, so he ordered the black dog to carry his father-in-law without saying a word. Find a place to eat.

In a small street restaurant, Shi Tieling nibbled eight loaves of bread on butter, and finally mixed half full before the main course was served, and we finally inquired from the old man about what had happened to him in the past few days, and knew the reason why the old man was in a hurry to borrow money to buy gasoline as soon as we met.

To put it simply, because he was suddenly blacklisted, Shi Tieling triggered an aviation alert while waiting for a connecting flight in Berlin, and was detained and taken away by German police with strong anti-terrorism awareness a few minutes later. However, because the Institute of European Studies is also a bunch of nerds, they are not ruthless and resolute enough to do everything, and they threw the old man into the blacklist but did not frame him for more than 100 charges of murder, arson, and robbery, so the German police uncles and monks who detained the old man were puzzled, and naturally they would not be as cautious and strict as the guards of the terrorists, but they just casually found a locked detention room and threw the old man in, and even the handcuffs were taken off for the sake of his old age and the face that he could not escape.

This gave Shi Tieling a chance to escape, and before the immigration bureau came to take over and send him back to China, the old man took advantage of the opportunity to be unattended in the detention room during lunch time, and removed the wall clock and table lamp in the detention room. Make a few useful tools and parts, open the door of the detention room and the back door of the police station and slip away easily and quietly - who makes the German police rich, and all the access control is electronically locked? For Shi Tieling, who has been fiddling with precision machinery all his life. It's much easier to dismantle this supposedly high-tech gadget than to pick a headlock with a screwdriver.

The next story is more touching, it stands to reason that Shi Tieling was penniless and had nowhere to stay after escaping from the police station, and he was also on the national security blacklist and was charged with escaping from prison. What should I do if my baby daughter is ruined by which bastard?

So the old man gritted his teeth and stomped his feet, and simply lurked in Shajiabang. While blending into the homeless man to hide his tracks and avoid pursuit, he is still trying to find a way to get to Greenland, and the old guy's way is quite domineering. Didn't you allow Lao Tzu to take a plane? Lao Tzu saved one of his own planes and flew over!

So the old guy began to save planes, according to the old man, it is the problem of the engine propeller plus two wings, it is not a problem for the big scientist at all, the scrap yard to find a scrapped car, knock and add a few cylinders to the engine to fly, as for the missing parts, we will buy it if we have money, and we will buy it if we have no money...... Just find a job in the garbage bin scrap heap!

Before we arrived, Shi Tieling had been rummaging through the garbage during the day to find parts, and hiding in the scrap yard at night to build an airplane for himself, and the old guy's work progress was quite fast, and now he was almost done, and the reason why he contacted Chen Sanshan was also because the old man racked his brains and couldn't get enough fossil fuels for him to fly half of the North Atlantic, and wanted his old guys to send some money to buy gasoline for themselves in Europe, or ask if anyone had overcome the research project of reducing oil from plastic......

After listening to this European version of the story of the orphan girl, even I have always been prejudiced against the old guys I have to be moved by Shi Tieling's stubbornness and persistence, although his behavior is obviously impulsive and radical and death-oriented, but we have to admit that an old father does this for his daughter, no one is qualified to say anything about him, at the same time, I am dissatisfied with the old guy's too withdrawn and independent ideas, this old guy would rather save his own plane than call us to help him, this is obviously not very trusting of our ability and determination to rescue Jiang Shasha。

"Look!" the old man took out a crumpled hot dog wrapper while gnawing on the bones of the stick: "I've almost remodeled it, just a few diodes and gasoline, let's buy it after dinner......"

"Are you stupid!?" To my surprise, it was Xie Erdong who interrupted Shi Tieling's endless talk, just when I just thought that this kid would teach Shi the old man a lesson in righteous words, what does it mean to believe in his companions, and what does it mean to advance and retreat together, this kid dodged the wrapping paper on which Shi Tieling drew a sketch of the plane, and pointed at the old man and said: "The wings are too forward!" It will cause the airflow pressure to hit the front end of the fuselage, and you will have to plant yourself in the sea if you can't fly three kilometers, and the chemical ratio of your gasoline extraction aviation fuel, the stability of the things made will definitely be very poor, and the air pressure and turbulence will aggravate the self-decomposition process of the compound, and it will definitely explode within three minutes of use......"

"Hey, how old are you kid? Do you dare to question Lao Tzu's design? You still wear open crotch pants when Lao Tzu flies into the sky!"

"Even when I wear open crotch pants, I can see that if you want to make a plane according to this design, then the sky will definitely blow it up!" (To be continued...... ）