Smiles appeared on the faces of The Eternal Mountain King and Sky-Flame King as they heard that. Since the Scarlet King could determine the date on which a formation was installed, he would know whether it was after or during the era in which their family had control over the Silver City.
As for how the young man was capable of that, they had already accepted he had access to all sorts of unique powers, so they just took it as a new one. The duo waved their hands and produced two starry gems without wasting time. These were usually meant to save Saint Techniques, but they could also be used to store other essential information.
Cain took the two starry gems and nodded to the two Kings before glancing at the others. While The Eternal Mountain King and Sky-Flame King surely had the most crucial and profound knowledge, the others present should also have some understanding of the Silver City, and he wanted it all, no matter if it was redundant.
