Well, Seraph would certainly be on the lookout for anyone with connections to Cyre, so they might have heard of him asking around or else he heard of them if that's a piece of information they'd publicly made known.  It more something to start a meeting with, than a fast friendship - for himself, Seraph is just trying to piece together what happened to him.<br/><br/>After that, they could have wondered around and done jobs or such?