I initially went to the safe area of Area 17 where the villa is.
First, I have to prepare the particular by finding the place where I can apprehend the lost thieves.
I mark all the lost thieves inside the labyrinth. There are approximately 300 people in total. 90% of them have committed felony like [Murder].
Next, I look for the working field that Rudaman talked about. I try searching the main ingredients of the fiend drug, Ruin Weed and Decay Stem in each area. Although there are places where they're growing wild, I pick ones where they're growing densely that have obviously been tended by humans, and have carriers and lost thieves nearby them. There are three places all in all. Moreover, the places cannot be reached without going through troublesome areas.
Next, I search to see if there's any noble or their servants. Miss Gina's party [Moonlight], and other three noble parties come up. Judging from their positions, every party is innocent. They're quite enthusiastic to hunt by staying overnight. Even miss Gina who was at level 6 when I first met her has smoothly leveled up to 9 now. They're probably leveling up efficiently by constantly fighting higher-leveled enemies.
Next, I need to prepare the place where I can temporarily put the lost thieves. I can't exactly bring them to the authority in the middle of the night.
The chosen site is in one corner of Area 37. It's a bit deep but since it's an area with plant-type monsters, it has watering holes. I've picked the place where Gushing Holes can't geographically appear, and with only one entrance to it.
I look for the shortest route there. I can likely get there in 20 minutes if I break the walls in two passages along the way.
While relying on Invisibility and Spy skills I fly on the passage ceilings with Sky Drive. It seems that no one from the explorers parties along the way noticed me. Even if they do, they will probably regard it as a new kind of monster.
The hall where I've arrived at is quite a damp place with water dripping from the ceiling.
Fern-type plants are growing in colony. It looks like they're monsters. I tried throwing an ant leg from the storage to it, and the fern leaves became like a chainsaw, cutting the leg. I'm unsure whether this monster belongs to a fantasy or a horror work. Let's check the leaf's structure later.
I catch sight of monsters that look exactly like triceratops between the trees. It's probably not a normal dinosaur since violet flashes sometimes appear on its orange-colored transparent horns. While producing chewing sounds, these monsters are munching the leaves that are rotating like chainsaws without even caring about it. There are also two-meter class dragonfly-like monsters fluttering around.
Geez, it's completely a Cretaceous era.
I pull myself together and begin the clean-up. I swiftly cut down the stronger monsters with [Flexible Swords]. Since they'll likely smell if left alone, I put them into the storage with [Magic Hand] in no time flat.
After I've exterminated the big ones, I use [Remote Arrow] to eradicate the small fries. I retrieve the bodies just like I did with the big ones.
In just 10 minutes, I've completed clearing the monsters in the hall.
In the center of the room, I put a lot of bowls with clothes inside and dried meats from insect-type monsters in jars. These dried meats were something that the mansion children had made for practice. They're terrible thing that even made the beastkin girls to put down their forks with just a single bite. It was clearly a failure, but I couldn't throw them away just like that either, so I stowed it away in the storage. Might as well use it for the lost thieves I'll be capturing.
Next, I block the only passage to the room with a big rock that I had stored in the storage from the aisle. Then I put a carved seal board on the middle of the passage. In addition, I make hard stone walls at a certain length in the passage afterward by using [Stone Wall] magic on the soil taken out of my storage.
The impromptu prison is complete with this.