The decomposed monster corpses are useless, but if they are piled up like this and don't make any effort, the corpses of these monsters will still cause some trouble.

For this reason, Frigila found someone to transport the monster corpses out of Bowland in a cart and burn them in the suburbs.

It's just that the corpses can be incinerated, but the soil infiltrated by the blood of these monsters can't be processed, so the blood on the slate can only be cleaned first, and the blood in the soil is planted with some special plants to decompose the blood water.

While Frigila is trying to get her manor back to its original state, Leo and Alto are checking to see if the elven magic circle in the manor can be used again.

Soon they had an answer, although some parts of the elven magic array were damaged, they could still be repaired, and the real trouble was the monster relief stone pillar, it seemed that this stone pillar was a one-time item, after using it once, the surface was already covered with small cracks, and there was almost no possibility of repairing, so they could only make a new one, or find another intact one.

However, for Leo and them, the materials harvested this time were enough, and there was no need to do it again.

At this time, Leo gave Friengira a proposal, that is, these materials were not sold, but given to him to refine into wizard potions, and when the time came, the finished wizard potions should be sold, and the profit should be greater.

Sylvia didn't even think about it, so she agreed to Leo's proposal, she originally planned to propose to let Leo help refine some potions with these materials, because there were too many materials to harvest, and she didn't have enough containers to prepare, so she could only use ordinary containers, these containers could not prevent the materials from spoiling, and now Leo proposed to refine the medicine, she was naturally happy to see it happen.

It's just that there is a slight disagreement between the people on the matter of the distribution of benefits, Sylvia hopes that everyone present should be paid, but Frigila thinks that like Angoulan and Cassirer, they are not involved in the battle and should not be paid.

However, this disagreement soon ended with Frigila compromising, as her relationship with Geralt could become sour.

Because Furgila has the most complete alchemy equipment and place, Leo stayed in Furgila Manor and refined the materials into potions.

Geralt was having trouble with Friengira over the payment of his companions, so he found an excuse to go out and borrow a mission to separate them to calm both of them down, and Friengira took the opportunity to follow Leo as an assistant to help him refine the medicine and see if he could learn anything from it.

It's a pity that she didn't know Leo's trick of refining wizard potions from the beginning, but it was actually psionic energy, which had nothing to do with refining potions or anything.

She assisted in refining for several days, and had fully mastered Leo's alchemy techniques, but she was still unable to refine a bottle of potion, which also made the sorceress extremely discouraged, thinking that she had no talent for refining potions, so she was no longer interested in everything here, so she made an excuse and left the manor to find Geralt.

In contrast to Fringira, Aalto was very interested in Leo's methods of refining potions and the finished potions he produced, although he had no knowledge to teach Leo now, but he had the experience of this world-class alchemist, because during his many years in the library, he often used to pass the time by refining potions, and in terms of experience in refining potions, there were only a handful of people in the whole world who could match him.

At first, Leo mainly focused on wizard healing potions and psychotropic potions, but after getting Aalto's experience to teach him, he also began to try to refine various alchemy potions in this world, and improve these potions, or weaken the effects of the potions, to the extent that ordinary people can use them, or greatly increase the effect of the potions, but there are certain side effects, etc.

By the time Leo had used up all the materials, he had improved more than thirty potions, and the potions he improved were not the only ones he could refine, but also Aalto and other people in this world could refine them, and five of the more than thirty potions were used for healing and detoxification, even ordinary people could use them.

Almost as soon as the two of them had finished refining all the potions, Fringira had already received the news, and immediately left Geralt, who had been relieved of his previous suspicions and was in a hot mood, and rushed back to his manor to see the results of Leo's improved potion.

When she saw that there were five of the improved potion recipes that could be used by ordinary people, and she saw Aalto make them with her own eyes, she was able to clearly recognize the value of these potions.

Originally, she wanted to talk to Leo directly about the transfer of these formulas, but Leo said that he had left these things to Sylvia, and asked her to talk to Sylvia about something, and then he pulled Aalto and began to study how to safely catch the demon from that eyeball and imprison it.

Leo didn't know exactly what the conversation between Frigila and Sylvia about the recipe was, but it was not difficult to tell from Frigila's extremely gloomy and ugly expression in those days that she should be at a disadvantage, but after the final negotiation, her face looked a little better.

After Leo gave all the potion recipes to Frigila, he left Frigila's manor, left the town of Bockland, and did not return to the Knights of Light's station, but went to the Sansredo Swamp, came to an abandoned manor, cleaned up, and began to make preliminary preparations for the capture of demons.

Sansredo Marsh is located in the lower reaches of the Sansredo River, northeast of Bowkelan, the swamp here was not seriously flooded, and a large number of birds and beasts live here, it has become the best place for nobles to hunt, a large number of nobles and wealthy merchants have built private estates here, and it has become a holiday destination.

However, due to some wrong water control devices upstream, the river water downstream poured into the swamp area, which doubled the swamp area and eventually became a swamp area five or six times larger than the city of Bowkland.

Most of those manors were naturally soaked in water, and the rest were unusable due to the humid conditions of the swamp area, leaving the Sansredo Marsh area with a large number of abandoned manors.

Leo and Aalto have worked out some methods to imprison the demon and prevent him from escaping, but those methods require a large area of land. Although Friengira's garden is suitable, after the last time she summoned monsters from another world, she managed to reluctantly restore the garden to its original state, and naturally she would not agree to Leo and Aalto using her place as a demon summoning place again.

However, after learning that Leo and Aalto were looking for a large territory to use to set up a magic circle and other confinement measures, Sylvia immediately found some information about the Sansredo swamp and helped them choose a suitable abandoned manor.

The manor they chose came from a powerful earl of the Nilfgard Empire, who seemed to think of it as a resort, so he built a very luxurious manor with a huge garden.

However, this earl of real power was very unlucky, not long after the manor was built, it encountered the backflow of the river and the expansion of the swamp, and the manor was flooded by the swamp without even a chance to use it, and the rest of the place had no possibility of repair, and finally could only be abandoned like other manor villas in the swamp area.

As Frigila introduced, the garden of this manor villa is very large, because the real earl hopes that this place can become an important place for him to entertain guests, so the garden of the manor is built very large in order to facilitate banquets, and its area is almost equivalent to the entire Furringira manor, such a large area is enough for Leo and them to use,

Almost like most abandoned manors in the swamp, the gardens of this manor are also filled with relics from the Elven Kingdom, and the stone slabs on the ground are also carved in ancient Elven languages.

However, the craftsmen who built the slabs at that time did not know the contents of these stone slabs, so they rearranged them completely according to their own ideas, and even mixed some extremely abrupt local reliefs into them, which eventually caused the floor pattern that Leo saw now to be meaningless.

However, the craftsmen's approach allowed Leo to save some time working on the elven pattern, because if it was indeed a garden similar to Fringira's garden, with an elven magic circle, then he would need to be careful to clean it up, because something could happen at any time.

After destroying all the elven patterns on the floor, Leo and Aalto rearranged them, and the method of arrangement was very simple, that is, they found the natural energy nodes in the manor, and then placed the simple rune magic traps they had built in the past few days on these energy nodes.

Aalto also saw Leo use Gamoré and magic runes to create magic traps, and felt that this magic item making method was very novel, but it was a pity that even Leo himself taught it, he couldn't make a real finished product, and the rune traps he made would have some unpredictable reactions after being activated, the most serious of which was a small crater in the ground.

Soon the rune traps were set up as they had taken them, and the next thing was to wait for the right time.

According to Aalto's research on demons, as long as the demon's body does not disappear, it will not die, and the demons who enter this world are all projections, and death will only cause the demon to lose some of its power.

However, it is difficult for demons to enter this world, so every opportunity to enter this world is very rare, and they will not return to the other world they are in unless they have to, nor will they destroy their projection.

When the projection encounters a life-and-death crisis, they will use a parasitic method, abandon most of the projection's strength, and then find an item that can parasitize in the nearest place and help them quickly recover their strength, parasitize it, knowing that after a complete recovery, they will shed their cocoons like insects and turn into butterflies, and the destructive-level creatures will be resurrected.

At that time, the best parasite for the demon was naturally the transformed Strange Eyeball, and the oppressive force brought by Leo to the demon at that time was too great, which made him panic, and he didn't realize that this eyeball was Leo's thing, so he parasitized it, so that he was now completely trapped and couldn't escape.

Now Leo and the problem they are facing is how to extract this demon from the eyeball, because of the effect of parasitism, the demon and the eyeball are integrated, and it is very simple to destroy the eyeball to kill the demon projection, but it is very difficult to extract the demon projection from it.

Luckily, Alto was well-read, and found something useful in a very old Warlock's Notebook, in which he mentioned that the nature of demons was greed, and that their greed was so strong that it could overshadow their reason.

The owner of this notebook is also an unlucky person, he is trying to take advantage of the demon's greed, to make a deal with the demon, the final result is unknown, but this notebook was not written in the end, apparently something has happened.

Leo and Aalto's current arrangement is to take advantage of this nature of the demon, and Leo has specially created a healing potion that is very tempting for the demon, which needs to be sacrificed to the demon in the eyeball at a specific time.

If the warlock's notes were true, then the demon would never be able to resist this healing potion that could quickly heal his injuries, and even if it was found to be a trap, greed would definitely suppress reason, rush out, harvest the sacrifices, and then the manor would be able to easily catch him.

However, there was a problem with the whole ceremony, Leo couldn't be present, otherwise the demon had just rushed out and found Leo on the side, and I'm afraid he would immediately retract.

It's just that Aalto presided over the whole ceremony alone, and Leo won't be at ease, after all, Aalto's ability to cast is too weak, and if the demon appears and does something like an attack, then it will be difficult for Aalto to retreat.

So after setting up the manor, Leo went to Geralt, Regier, Sylvia, and Fringilla, and asked the four of them to keep Alto safe.

Time passed little by little, and another three days passed, by which time the weather in Bockland had become very cold, and even a thin layer of ice had formed on the water.

Freezing on the surface of the river is a novelty for the average child, but for adults, freezing on the lake is not a good thing, as the ice is likely to cause some undesirable conditions, such as damage to the river embankment.

However, for Leo and the others, who were waiting for the right time in the swamp manor, this kind of weather was very good, because under the effect of this weather, the energy fluctuations of the surrounding natural energy nodes were very stable, and there would be no accidents.