[quote=@Raptorman]
I'm not sure how much the public know about it. He withdrew to a lesser known one following the events of the brief war with the aliens but clearly it's location is discoverable since that woman Maria sent Merle there. 
[/quote]

Maria and Vorian would have worked together for a few years, so she knows him personally. I like to imagine her as being the ultra-mega-hacker/stalker who can find out anything about anyone easily. Of course, I'll never explain the technicalities of how she manages it, 'cause how hackers do that stuff is way beyond my smarts.