Mercury was not a rare substance.
In Hell, even gold was cheap, not much more expensive than ordinary copper and iron.
But mercury typically existed in a mineral form, and the mercury here was quite pure, as if someone had specifically refined it.
Not only that, but the mercury that flowed out from the spatial rift carried a strange odor, like that of demons, yet mixed with something else.
Parurier could only guess that a large amount of mercury existed inside the spatial channel frequented by demons, and had managed to let some flow out by opening it slightly.
Although unexpected, Parurier thought it was not worth fussing over.
Spatial chaos dominated the area, and it would not be strange if even a dragon emerged instead of mercury.