Actually, Yusuf Zuck had returned this time only to give himself an explanation. He knew that this return would likely yield nothing.
After all, three thousand eight hundred years had passed, and Ember Vance was most likely dead, her bones possibly fossilized. Thus, he merely sought some peace of mind.
The first day after returning, he began using the process of elimination to trace Ember Vance's trails from those years ago, and called out Lily Case, asking Lily Case to lead him to the location where she had received Ember Vance's message years ago.
The Message Jade Disc was not omnipotent, and it had a distance radius. Beyond the radius of the disc, messages could not be received. Since messages from Ember Vance were received back then, it indicated that Ember Vance was actually not far from Lily Case.
