Encouraged by the great news that the gap in the Wall of Rossi had been re-plugged, the soldiers from all over the world, who had already begun to pack up and retreat into the Wall of Shena, immediately began to clear out the giants scattered into their defense zone with great enthusiasm.

After completing the task of blocking the door, the Survey Corps also chased the giants from the rear non-stop, and attacked the local garrison Corps back and forth, with unprecedented efficiency, and eliminated all the giants who entered the Rose's Wall in two days with unprecedented efficiency.

Then, taking advantage of the fact that the giants in the south of the Rossi Wall were greatly reduced, Chu Xuan and Mikasa sneaked out of the Rosai Wall the night before the holiday began, and headed towards the Higanshina District, a hundred kilometers away in a straight line, that is, the hometowns of Allen, Amin and Mikasa.

Because there were only two people, there was no need for logistical supplies at all, so Chu Xuan and Mikasa each carried enough dry food and two water bags to eat for five days and went on the road, and they didn't even bring more gas cylinders for the three-dimensional mobile device.

On the way to the "Higanshina District" of the Urn City at the southern end of the Wall of Mary, there were many villages and towns, and Chu Xuan and Mikasa could replenish drinking water along the way, and the compressed gas in the gas cylinders could also be filled from the gas replenishment room of the local garrison.

Although after five years, most of the food that the local residents may not have been able to take away has been rotted, even if the food is not replenished at all, five days of dry food is enough for Chu Xuan and Mikasa to go back and forth.

For these two outstanding graduates, who actually ranked first and second in the training corps, it was easy to march 100 kilometers on foot with a weight of 30 kilograms in two days, and if it wasn't for the need to avoid large giants along the way, two days would be enough for the two of them to run a round trip.

Moreover, in the previous "Extramural Exploration Operations", the Survey Corps also set up some supply points between the Wall of Rossi and the Wall of Maria, saving materials for the "**" of the human race that they don't know when it will be realized, and Chu Xuan and Mikasa can also get supplies from these supply points.

Because the giants would move very slowly at night when there was no sunlight, or even stop moving completely, and Chu Xuan and Mikasa had specially chosen to go out by day, so it only took the two of them a day and a half, including two nights and one day, to arrive in the Higanshina district.

Of course, the greatly reduced number of giants in the southern part of Rossai's Wall, as well as Chu Xuan's superb latent skills, were also important reasons why their trip was extremely smooth.

Although this was a "trip" of only the two of them, because Alan was still "not cold", there was nothing ambiguous along the way, and it was impossible for anything ambiguous to happen, and along the way, Chu Xuan and Mikasa, the two stuffy gourds, didn't even say a word of gossip, so they rushed to their destination boringly.

"There...... It's Alan's home. ”

In the darkness of the night, Mikasa and Chu Xuan avoided a few giants who were languishing due to the lack of sunlight and came to the ruins of Allen's house.

There was no change here from when they ran away, and she couldn't help but think back to the scene when Alan's mother was eaten by giants.

"Let's try to clear the passageway, hopefully the entrance to the basement isn't crushed under the boulder."

Chu Xuan didn't try to comfort Mikasa, he pushed down his reflective glasses with a blank face, and then immediately began to probe the details of the ruins.

Because Mikasa, who had only been adopted by the Yeager family for a year, did not know the location of the lower room, so Chu Xuan and she could only search slowly, and fortunately, the entrance to the basement of the Allen family was not under the crushed room, nor was it crushed by the boulder.

"Click!"

Under Mikasa's emotionally complicated gaze, Chu Xuan took out the key that had been hanging around Allen's neck and opened the entrance to the basement.

After entering the door with a torch and walking through a long tunnel that was constantly spiraling and descending, what appeared in front of Mikasa and Chu Xuan was a rather unbelievably huge basement.

"These are all ......"

What Mikasa saw were crystal clear bottles and jars, small machines of unknown purpose, and bookshelves and cabinets at the other end of the basement, full of bookshelves.

Although Mikasa didn't know what this basement was for, Chu Xuan couldn't understand it better, it was clearly an underground laboratory with the electrical facilities removed!

In the underground laboratory of Allen's house, Chu Xuan found some "interesting" information, and in the information on the development of the giantization virus by the extremist religious environmental protection group, the myths of Northern Europe, China and ** religion were also mentioned.

The "giants" in Norse mythology, the "witches" in Chinese mythology, and the "angels" without surnames in ** religious mythology seem to be the source of "inspiration" for the research conducted by the extreme religious environmental protection group.

If giants are classified according to Chinese mythology, ordinary giants are ordinary "witches", while giants such as Reiner, Berthold, and Ani with their own armor, extremely large bodies, or local hardening abilities should be called "great witches".

Not only that, but they actually found traces of the existence of the Nordic "giants" and the Chinese "witches", and with the help of the study of the genes left behind by these mythical races, they succeeded in creating genetic fragments that made humans "giants" - or "witches".

This gene fragment is the root of the giant virus, and the remaining gene fragments of photosynthesis, the gene fragments that eliminate surnames, the gene fragments that suppress brain thinking, and the gene fragments that rewrite biological instincts are actually just minutiates, and the many forces that secretly fund the extremist religious environmental protection group want to obtain the method of making human beings have "witches".

Why did this information appear in the basement of Alan's house, and it was impossible to find out the truth without asking Alan's unaccounted father.

However, looking at the completeness of this information, Chu Xuan believed that it was probably secretly copied by a scientist who "discovered conscience" in that extremist religious environmental protection group and passed it on to Allen's ancestors.

And Allen's ancestors are not ordinary people, his ancestors are not only scientists in this field, but also have mastered the "power of angels" - that is, humans who can be transformed between human and giant forms, and have pure hearts like natural plants.

According to the experimental records in the basement, Allen's ancestors have been in this basement and have been constantly looking for a way to restore the giants to the ** class.

As for the source of research funding...... It is a certain nobleman in Wang Zhengaxe who is unwilling to become a lackey of the "angels" forever.

However, the research never succeeded, and in the course of his research, Allen's father's generation combined the research materials of the extremist religious environmental protection group, as well as the research results of their ancestors and other scientists on humans who had mastered the "power of angels", and created the first virus that could give humans the ability to become true giants.

It's just that if it continues at this rate, this extremely secret research may have no follow-up before Allen's father fulfills his ancestor's last wish.

-- The level of education of mankind as a whole has suddenly returned to the pre-industrial age, and it is simply impossible to cultivate human resources who can understand the knowledge related to this high-tech research artifact, and even if the knowledge of the Allen family is passed down from generation to generation, the level of transmission is actually lower and lower because of the limited learning ability and research spirit of future generations.

By the time Allen arrived, he was not interested in studying "medicine" at all, and only wanted to join the Survey Corps to see "outside".

In the chronicles left by Allen's father, Chu Xuan also saw that Allen's father and the funders behind him actually didn't plan to continue the research - maybe Allen's father or the descendants of that great nobleman had completely lost confidence, or maybe the descendants of that great nobleman had changed their minds and felt that it was not bad to "enjoy life" like other nobles.

If it weren't for Reiner and others destroying the wall of Maria and destroying Allen's father's family, Allen's father might not have injected his son with the potion of giantization at all, but let Alan spend his entire life "ordinary". (To be continued.) )