Rosero thought seriously for a while before answering decisively, "Then Delifus must have even more in his hands.
"He must have found the Defense Tower's secret mineral reserves."
"Hmm?" 'Aislin' looked somewhat confused. "Like the Hainalson Family's Cat's-Eye Stone mine?"
"What kind of mineral reserve is that?
"In this energy-starved world, no matter how precious gemstones are, they cannot compare to pure Energy Crystals.
"Even if this world hates us outsiders deeply and tries to turn its own law energy in directions unfavorable to us, it still has to abide by certain rules.
"But it can hide crystal mines formed from excessively concentrated energy deep beneath the earth.
"And the earth... you know its condition.
"Neither Mages nor we can break the seal it formed with the will of the entire world.
"Unless we completely destroy this world.
"But then that would not suit our goals.
"Besides, this kind of Energy Ore contains this world's law energy, so it is of little benefit to us.
"There is no need for us to sacrifice our own power to help those Mages.
"They are merely subordinates, and besides... heh~
"In short, they are not worth it.
"Of course, if they have the ability to do it themselves, we can make a profit off it afterward.
"After all, gold is innocent.
"But to accomplish that, at the very least, one must possess an earth-related attribute.
"Though they may not necessarily be able to control the earth and make it help them, tunnels opened with energy carrying the earth attribute will temporarily lose their ability to repair themselves.
"If it is an Archmage with some ability, building a sufficiently deep and hidden passage would actually be quite easy.
"The Defense Tower is the last Mage Tower in this world with an earth attribute." Rosero