On the seventh day after the Relief Society's dinner, Todd stood at the door of the church in Twilighttown, watching a group of residents watch the bustle and watch a group of taciturn craftsmen in the open space next to the church, ramming stones and laying foundations.

Not far from the construction site, Rachel and Karin stood beside them, dressed in wide white nun robes.

Karin's eyes lit up when she saw the priest, and as soon as she took two steps under her feet, she was grabbed by the abbot of the nun behind her and whispered.

Seeing this scene, Todd shook his head amusefully and helplessly.

Early the morning after that dinner, Todd planned to take Karin back to Twilight. Originally, he thought that Richel would have to prepare for a few days before he could come over. Unexpectedly, the other party just carried a leather bag and a small wooden box, and jumped into the carriage.

Along the way, I don't know what method she used, Karin, who was originally a nonsense and a little hostile to her, had been trained by her to obey at the end of the journey.

Within a few days of the trio arriving in Twilight, the convent builders appeared next to the church, much to Todd's astonishment at Richel's efficiency.

Leaving the door of the church, Todd returned to the laboratory building, and once again opened the "History of Sutherland" that Theodore had given him, and there was one passage about the sage's research career in his youth that was of most concern to him.

"Sutherland was twenty-six years old, and when he was working at the Taylor Alchemy Academy, he built a hut in the active volcanic crater of Albano for eight years in order to conduct experiments in alchemy. Every morning, he carried water and dry food from the path of the volcanic cave to a depth of tens of meters to collect and refine materials...... At the age of thirty-four, he returned to the capital, where he continued to study alchemy while traveling with the legions as a pharmacist......

Todd slowly closed the book and thought about it. After the Sutherland archaea are injected into the human body, the number almost never increases or decreases. But if the xenobacteria exceed their carrying capacity and upset the balance between the two, archaea will attack and turn the host into a monster. According to the records of the Church, in the past thousand years, almost all those who have been tainted with the "Sutherland legacy" have become monsters, with the exception of one person, Sutherland himself.

In this way, the alchemist Sutherland should have obtained a large number of archaea stored in his body through what channel, which inhibited the xenobacteria in his body, and until he died in battle, there was no abnormality.

So, how exactly did this archaea get into Sutherland's body?

According to the research results of the microbial community in the previous life, from the discovery of archaea in 1977 to the year of crossing, there were only more than 100 species of archaea discovered, and according to their habits and places, they are generally divided into "thermophilic archaea" living in volcanic craters, "halophilic archaea" living in high-concentration salt water, "acidophilic archaea" living in strong acids, and other minorities.

Combined with the records of the "Sutherland Historical Biography", the Sutherland archaea are most likely the first - the "thermophilic archaea" near the crater.

So, that's the last question left.

How to obtain a large number of Sutherland archaea and solve their own "heir" crisis?

Todd didn't plan to learn from the alchemist of a thousand years ago, and went to the crater to find archaea. If you do that, I don't know if you can find it, but maybe on the way back and forth, you'll mutate into a monster first.

The best way is to artificially propagate Sutherland archaea, but this time the bacterial culture needs to simulate the environment of the crater.

Sure of all this, Todd was finally able to take a long breath at the lab table.

The answer to the huge puzzle of "Sutherland archaea" has a total of four puzzle pieces, which are: microbiology knowledge from past lives, experimental equipment that can observe bacteria, the secret history of the Church's hunting of "inheritors", and Sutherland's life experience. At this point, the puzzle is put together, the puzzle is solved, and everything is finally cleared up.

Finding drawings and tools, Todd began to write, a metal-sealed petri dish designed to simulate the volcanic environment, and quickly completed the blueprints. It was packed into woodpipes and intended to be given to Huggins later so that the craftsmen could build it.

Todd stretched out in his chair and looked at everything in the lab, suddenly remembering how long it had been since he had been in town.

Putting down the pen in his hand and locking the door to his room, Todd walked out onto the streets of the town.

It was already about four o'clock in the afternoon, and the people who had worked all day were gradually returning to the streets, and there were more and more people in the center of the town.

The church is surrounded by all the bustling streets of Twilight, with the shouting of taverns, the humming of all kinds of cattle shops, and the weaving and dyeing shops, linen shops, vendors, snack carts, and so on. Although it was lively, Todd glanced at the dust flying all over the ground and the garbage littered on the street, and touched the bridge of his nose in distress.

The public management of the town of Twilight relies entirely on the voluntary maintenance of the residents, and although this can greatly reduce municipal expenses, it is far from the level of sanitation and planning that should be achieved.

"Isn't regulation a good thing, but you have to rely on it?" said Todd, greeting the residents passing by, and thinking about the mixed thoughts in his head, as he walked farther and farther towards the edge of the town.

The most crucial and important link in the upgrading of a medieval village into a small town is the city walls. But now Twilight Town can't do it, first, because of the sea. Although the town has defense forces, the armed forces on the sea are almost zero, and even the best city walls are furnished; As the population of the town gradually increased, the planning and construction of the city wall was not a realistic thing.

Walking through the outermost part of the town, through the peasant thatched cottages, Todd took advantage of the setting sun to see patches of verdant fields separated by paths.

Frustrated, heavy-footed farmers passed by the priest, some with their heads bowed and some with their knees bent. Todd made a cross over the heads of the people, prayed a few words, and then turned back and walked back to the church.

The faint sound of crying not far away attracted his attention. Todd walked to the side of the road and brushed the grass from the side of the road.

A farmer in his twenties and his wife sat on a farmland, prostrate themselves and wept bitterly. The seedlings of sword beans and chickpeas next to the two of them turned yellow and withered, and drooped towards the earth.

Seeing the priest getting closer and closer, the farmer, who had guessed the identity of the priest through the clergyman's clothes, quickly pulled his wife up and fell to her knees.

Ignoring them, Todd crouched down, turned over the dirt beneath him, looked at the coastline at the end of his vision, and then at the lifeless vegetable seedlings, and probably understood what was going on.

The town is close to the sea, and the seawater can penetrate into the surrounding land through groundwater, causing most of the land around the town to be saline-alkali land.

The priest looked at the large patch of dead seedlings in front of him, sighed, and said to the couple: "Replace the crop with wheat, and start over as soon as you have time." ”

"Father, we have no money, and we have borrowed the last of our belongings from the lord of the manor. ”

The farmer's words stunned Todd, and after thinking for a moment, he asked, "How many farmers like you are still in the spring harvest?"

The husband and wife looked at each other and gave an answer that surprised Todd.

Pretty much all of them.