Researching Runes

With a sigh, Arthur touched the necklace around his neck. He had many questions more but Miko had already disappeared after revealing the information she had. 

The reason her family was sought after is that the seven families believed the prophecy that the traitor's descendants would aid the outsider, that was expected to bring doom into them. There was also the fact that their ancestor is the one who split the world, making them suspects of holding knowledge on how to undo it. 

Thus, the Era of Yore would come back in full glory, bringing the calamities along with it. 

She said there was a limit to how much she can say, so she gave him this telepathic necklace before telling him shocking information. 

Her family already knows that he was still alive. This could only be explained that there was someone close to him that has informed them.