Ben thought about it repeatedly and could only think of mining on his own. There were still many undiscovered mining areas in this era, but they were all in the Barbaric Region, which he seemed unable to reach for the time being.
As for the Stone Key, that thing was even more complicated. There were many Elemental Domains, but mortals couldn't enter them. The ones that had fallen into the Main Material Plane were even fewer——
Ben thought perhaps using the terminology from the game would better illustrate the rarity of this item. It was the essential item needed for player guilds to independently build cities and become Lords.
He patted his head, feeling a bit of a headache.
But it was at this moment that the giant voice sounded again:
"Mortal, are you ready to face the next challenge?"
