Alright it's been a while, so I'm probably going to start bringing the story to a full start. As you can see I've already been working my way to this. So my suggestion is anyone other than Marcus and Shade, if you haven't posted, I suggest posting now. Otherwise be prepared to think of some reason your character would join this quest in addition to a logical way your character would learn of it. An example would be overhearing Garv's conversation outside, or asking him later. When Garv has the map laying out on a table later(and he will) you may not deduce what he's doing based on the map. It is simply a map of the world, nothing special about it. 

The exception is Athena of course as she hasn't officially joined the RP yet.