It was quite simple really, but the Politos should have subscribed to some form of shape or formation for the layout of their Vaults.

For example, with seven of them, they could be placed equidistantly to form a septagon-like shape.

Unfortunately, this came up as wrong.

Darius then tried to see if it had been layered out with other unique and random shapes that made sense. When they all failed, he moved on to another style, which was logic and security.

In other words, he was now trying to pinpoint the location of Vaults using locations the now-extinct race would have regarded as secure enough and hard to access.

For example, this sinkhole, when placed against an older map of Pokterr before the Insects had raided everything - which Darius obviously had access to in his Database - was at the bottom of a mountain.

They had clearly dug out this place underneath the mountain in order to create the subspace which housed this Vault. This was quite a clever thing to do, as who would think to dig beneath a mountain like this apart from Dwarves, which weren't native to this continent, or Moles?

And even if Moles could find their way here, they were notorious for their simplemindedness and kind nature, so the last thing they would do would be to break the indestructible Vault doors down, assuming they even could.

And so, Darius kept choosing locations that were in hidden valleys or in the center of treacherous deserts to see if he could score a lucky hit. Unfortunately, nothing panned out still, which left him quite a bit speechless.

Okay, so with a map this big, the margin of error was too high. If he wanted to use this method, it might take a few days, and this was a problem since the troops would be deployed soon for the culling, and those 'Chosen Ones' would be arriving here soon.

He had to clear this particular Vault and hope that the location of the others were unknown to those above, though - after so many millennia - it wasn't impossible that this location had been disclosed in order to hide the existence of the rest.

Darius put aside the document and left his two Branded Servants in the house as he walked outside then gazed at the towering door. To open this thing, he had three main methods.

The first was to use an item or his Morph ability that came with 50 points in Charisma to mold himself into a member of the Polito Race, hoping to fool the identification of the door.

The second was to use Transmutations to try and turn the entire thing into another material or metal. If he turned it into an iron door, its indestructibility and sentience features should naturally disappear.

The third was to use a specially made spell that could unlock or work with this particular material.

Assuming the door had a sensory ability, it must have long ascertained that he, Gunner, and Xela were not part of the Polito Race, but if he walked to the house and came out with the face of a Polito person…

Well, unless the 'sentience' here only meant awareness but not intelligence, it would certainly not work. Not to mention that those who had come before had countless years to try this method, so it would be a miracle if nobody had ever attempted this.

50 points in Charisma might be hard for humans, but for other races like angels, mermaids, succubi, and the like, it would be a breeze. Look at Jeanne, as a half-angel her Charisma had been at 32 the first time he had met her, and at 40 the second, after he had cured her from overusing her powers.

The idea of using Transmutation was solid, but the problem would be the cost. To change an entire door of this size, even if it was from relatively close substances, would still drain a lot.

Darius was not sure his mere 200 CP per day (100 base and 100 for converting Lunar Dew) would be enough. He still had not unlocked partial conversion, so he was unable to spend a few days doing it bit by bit.

He wasn't even sure what existed close to Holy Silver which was used to make the door. All he could think of were things like Pure Silver, Dark Silver, and normal Silver. Well, he was free to try, assuming there was no danger in approaching the door.

Finally, the third option was also bust because it would require months of experimentation, even for him. Besides, Darius was certain this idea had also been attempted before.

In fact, people with special abilities related to unlocking doors or dealing with Holy Silver must have been sent here countless times, yet they had all failed.

So, what made Darius so arrogant that he thought he could do what others hadn't? It was the sole thing Darius had that those who came before him did not, his Transmutation ability!

This would be his key to success, as it had always been in the past.

Darius calmed down and analyzed the door for a few seconds before he suddenly teleported before it, then placed his hand on the nearest place he could touch. Immediately, his mind overclocked as he made an attempt.

[Would you like to change the Holy Silver Divine Door into a Pure Silver Divine Door? This will cost 344 Conversion Points.]

Darius did not give up and made many attempts in a single split second.

[Would you like to change the Holy Silver Divine Door into a Dark Silver Divine Door? This will cost 465 Conversion Points.]

[Would you like to change the Holy Silver Divine Door into a Silver Divine Door? This will cost 883 Conversion Points.]

[Would you like to change the Holy Silver Divine Door into an Iron Divine Door? This will cost 3423 Conversion Points.]

[Would you like to change the Holy Silver Divine Door into a Holy Iron Divine Door? This will cost 222 Conversion Points.]

[Would you like to change the Holy Silver Divine Door into a Holy Gold Divine Door? This will cost 201 Conversion Points.]

Immediately, Darius felt his spiritual senses that came with his high Luck tingle in a way that it had only once before, when he was facing Marasmus. Straightaway, Darius teleported away, right back to where he had stood before.