Leon managed to level up his skills quite a bit while he was killing the gremlins. Those creatures couldn't endure a single Plasma Bullet on their heads, so Leon was having a great time obtaining magic weapons that would be used to restore his mana and obtaining status points.
Congratulations! The skill Mana-Eater has leveled up.
You obtained 01 status points.
Congratulations! The skill Plasma Bullet has leveled up.
You obtained 01 status points.
Congratulations! The skill Fast Conjuration has leveled up.
You obtained 01 status points.
...
"Two thousand spears should be enough to produce... twenty kilograms of mithril. It won't be enough to explore an entire world, but it would be a pain to carry more than this."
Although transporting everything using Telekinesis was simple, Leon was focusing on speed, so he couldn't even carry all that much demonic spears while running. Monsters could feel the mana, so burying the weapons on the ground was a waste of time.
Regardless, Leon returned to the hippogryph's world, and then he headed toward the second purple crystal that was the farthest away from the one that would make Leon return to Earth.
"Considering my past experiences, I will find only any traces of them in the last dungeon... "
There was no point in wondering about such possibilities, even if they were right. So, Leon touched the purple crystal... two months later, after investigating the last dungeon of that world, Leon returned to the hippogryphs' world, and then he laid his back on the ground. Leon was exhausted.
"Oh, boy... now what?" Leon said after a long sigh.
Leon didn't find a single trace of human activity in any of those ten worlds. At first, he just investigated the worlds that had less violent monsters, but after finding nothing in those, Leon also examined the most violent planets... but he found nothing. Those ten worlds had dungeons that would take Leon to other planets... but the possibilities were big enough to make Leon feel dizzy just thinking about them.
"I'm overlooking something..." Leon said.
Leon was confident that Amanda, Maya, Hector, Sasha, and Betty didn't flee to another world with a small group of people. In fact, it wouldn't be weird if they left Earth alongside hundreds of thousands of survivors. Considering that, it was evident that they wouldn't move so much away from Earth, and they would keep an eye on the planet in case something happens.
"There is also a chance that they learned a movement skill like Checkpoint or Transfer by chance... Checkpoint would be most likely since it isn't that difficult to reproduce and use. If they had that, they wouldn't have to cross dungeons in case suddenly something happens, and this planet loses its connection to Earth."
A lot of mana would be needed to move between worlds, Leon couldn't imagine a single person having so much mana. But if Amanda and the others managed to find something like Soul Eater, then...
"I can't speculate all that much without any concrete proofs... I guess I will have to take my chances and investigate this world using Mana Dominion."
It was risky, but Leon didn't have much choice. He could only hope that Vigilance would alert him on time in case something happens. Besides, Leon's practice was also going slow since, after so many failures, he decided to focus solely on looking for his friends... Leon had to find them as soon as possible before something happens with him or Earth.
The very moment Leon used Mana Dominion, he felt several presences and some kind of magic barrier... below him. Leon sighed, it was one very basic way to hide, and he didn't think about it.
"I have been visiting this place quite a few times, but I didn't see anyone until now... why? They don't leave their hideout no matter what? That can't be possible... how can they get food and water?"
As always, Leon had many questions, but he wouldn't be able to get the answers alone. So, he started to dig using Earth Manipulation and Geomancy. Since it would be dangerous if the hippogryphs see him doing that, Leon decided to exterminate the few hundreds of them that were living in the nearby mountains.
It didn't take long before Leon finally find something. Thirty meters underground, he found some kind of glass, Leon could feel a lot of mana in it. So, it was evident that it had some magical properties. Leon couldn't see what was on the other side because the glass was very dense, and the mana probably was influencing on that.
"Bingo..."
Although the glass was very dense like a mana barrier, Leon managed to use Transfer and appear inside of it. As long as he was sure that such places existed, Leon used his skills like that. Regardless, it wasn't time to think about that... Leon saw a relatively large city below him. The place was much larger than Leon imagined, and the number of survivors was high just as he had expected, and possibly all the survivors there were ready to attack since their hands were being pointed to Leon, who was falling.
"Hey... I come in peace, don't shoot." Leon shouted and waved his hands.
Leon tried to look as friendly as possible, but since he currently looked like the swamp monster like Yuki said, it didn't work. When he was fifty meters above the floor of the city, the survivors started to shoot at him all kinds of spells. As expected, Anti-Mana Field destroyed those, but Leon's mana was quickly decreasing.
Congratulations! The skill Anti-Mana Field has leveled up.
You obtained 01 status points.
Congratulations! The skill Anti-Mana Field has leveled up.
You obtained 01 status points.
Congratulations! The skill Anti-Mana Field has leveled up.
You obtained 01 status points.
...