Through communication with Xue Lao, Du Qingtian knew that the subject of this experiment was the mysterious weapon "World Coffin" of country D in World War 2, it turned out that the "coffin of the world" had been obtained by the victorious country after the defeat of country D, but no one had time to pay attention to it when the war was just over, and after 1 year of silence, this mysterious weapon finally attracted the attention of all countries in the world again. However, one country alone could not convince other countries to conduct independent research, so a joint research base of the "coffin of the world" was established. After so many years, there has been no progress in the experiment, and the older generation of researchers are also old, and the new generation of researchers feel that the mysterious weapons of the 2nd World War can still be called mysterious now in the 20th century, and there is still a need for research. As a result, after symbolic consultations among various countries, the research base was officially dissolved.

However, as a world-renowned biologist, Xue Lao feels that this "coffin of the world" still needs to be studied, and there should be some topics that can be studied. So he invited the Ministry of Foreign Affairs to speak, and finally won the right to study the "coffin of the world". This "coffin of the world" had just been transported to the GV Research Center through secret channels, and Xue Lao couldn't wait to organize people to conduct experiments.

Du Qingtian followed Xue Lao into a storage room, where there was a white box marked with a highly toxic pattern, Xue Lao motioned for Du Qingtian to carry the box and led Du Qingtian into a laboratory. This is Xue Lao's independent laboratory, where there is a complete range of research equipment, from biological culture instruments, electrophoresis instruments and PCR instruments, ultraviolet-visible spectrophotometers, microplate readers, chromatographs and other conventional equipment, to many large-scale imported and domestic high-precision equipment.

The first experiment to be carried out is the activity test, after all, the "coffin of the world" has been stored for many years, only those bacteria that have not been inactivated have research value, and the extraction of active bacteria is not one by one, after all, we are not professional in the study of biology, we are just writing novels, well, the positioning should be clear.

After Du Qingtian placed the extracted bacteria alone, Xue Lao You conducted a series of other experiments, Du Qingtian could only start at this time, and after Xue Lao's day's mention, Du Qingtian said that he had gained a lot. One month later, the preliminary preparations were completed, and the entire research team reassembled. In addition to the 6 core members, there are hundreds of observers and recorders in various fields. This is the time to test the power of the "coffin of God". A hermetically sealed weapons laboratory containing live test subjects from the experiment, several monkeys that had shaved off their body hair. With Xue Lao's order, this small "coffin of the world" that had been researched and manufactured for one month broke out in this weapons laboratory. All the experimenters entered the intense observation and recording, this small "coffin of the world" is still very powerful, only 30 minutes for the monkeys to collectively enter a period of weakness, 1 hour later there were black spots on the body surface, 3 hours later all died. In terms of effect, the experiment was a perfect success, but it seems impossible to call it an unstoppable weapon with such an effect. There must be some secrets that have not yet been discovered, so the experiment officially enters the second stage, studying the peculiarities of the "coffin of the world".

After 1 month of getting along, Xue Lao has fully believed in Du Qingtian's work ability, and there is no problem in his rigorous attitude, and some simple experimental tasks can be completed independently. With the evacuation of most of the scientific researchers, Du Qingtian led the cleaning team specializing in the treatment of experimental residues to start cleaning up the residues of the "coffin of the world". 3 days later, after the processing was completed, after Du Qingtian's personal testing, the weapon laboratory was completely restored to normal, without a trace of experimental residue, so it was reported to Xue Lao, after the completion of this mission, Xue Lao informed Du Qingtian of a good news, the tense experiment is about to come to an end for the time being, and there is an urgent secret experiment that Xue Lao needs to participate in, and the other members of the team are on standby. This means that Du Qingtian can go home. (Of course ordinary people can't, but Du Dashao still has a little privilege.) ）

Time turned back to the time when Du Qingtian personally tested the residue, and no one noticed that when Du Qingtian, who was wearing a chemical protection suit, entered the weapons laboratory, a colorful light shot out from the water drop pendant, and actually penetrated the chemical protection suit attached to the surface of the chemical protection suit.

After a good night's sleep, Du Qingtian was ready to go home. After undergoing more than 30 tests to ensure that Du Qingtian's body did not carry harmful factors at all, he entered the small lounge on the 6th floor through the projection channel, that is, the ejection channel located on the 6th floor of the laboratory, and once again entered the small lounge on the 6th floor through a 2-second roller coaster, so Du Qingtian finally boarded the journey home in the afternoon. The driver still drove a Mercedes-Benz to pick up Du Qingtian, and he didn't say anything all the way and arrived home smoothly.

In the evening, Du Qiangjun returned home and was very satisfied after inquiring about Du Qingtian's work. I had dinner with my father and didn't go back to my room. Because his father said that he had grown up and could know some family secrets.

Follow his father into his father's study, which used to be Du Qingtian's forbidden place, and today Du Qingtian finally entered the small room on the top floor of the villa as he wished. There was a banner hanging in front of him, and the inscription "Technology changes fate, science and technology creates wealth" was deliberately blocked and could not be seen. Nothing else is special, there are bookshelves on the left and right sides, the bookshelves are full of books, there is a desk and chair in the middle, and the wall farthest from the door is occupied by a sofa, and the sofa looks basically the same as the sofa on the 6th floor of the research institute, but it seems to be newer. As for why a sofa attracted Du Qingtian's attention, of course, it was because this sofa was incompatible with the villa, and the style was a bit old, and because the ejection channel or projection channel sofa of the research institute left a deep impression on Du Qingtian, and there was such an old-fashioned mahogany sofa that was really eye-catching.

Du Qingtian pointed to the sofa and was about to say something, but Du Qiangjun seemed to realize something, and signaled that if he knew, he would not say it. Du Qingtian's heart was shocked, the Du family seemed to have some secrets that he didn't know before. There is also a research base above the villa. Du Qingtian, who was shocked, nodded and didn't ask, his father must not say it now because it was not time to say it yet. I visited a circle of study rooms, and the books in it are basically biology masterpieces from various countries, some of which are still unique, and even some of the authors, Du Qingtian, a biology master, have never heard of it.