The main group is in Zerul and on way to the city by the same name (currently at last stop before Zerul City, just to pick a couple of individuals up), the people they're going to meet up are in Zerul City. I'd say Zerul City would be the best place to put Gregory in (he'd most likely be seeing the rest of the people "tomorrow" morning). (Hmm... Once I get that other half of my post up, I assume it'd be Jack's turn with Jaelnec and Olan? Also this week has been a bit ... busy, to say the least.)