Magic Springs were special places where the mana associated with specific elements liquefied to form special small lakes.
That was a very rare phenomenon and could be found in less than 0.000001% of the area of Polaris Realm.
However, considering how vast the continent was, there were several known Magic Springs on the mainland, and it wasn't out of the question for a new one to appear.
There were two kinds of Magic Springs—those that were PERENNIAL and those that were not. The difference was obviously in the continuity of these special areas, which could be renewed or not once they were exploited.
It was because of this possibility that Sarah had used such an excuse.
"Unfortunately, the Magic Spring I found was small and non-perennial..." She sighed, pretending to be disappointed that she could not return to such a place to use its essence again.