That -is- an issue I thought about for a bit, and the only reasonable explanation was that she had someone or something she needed to make sure was alright somewhere in the world, possibly not even in a city. Or maybe try to get a boat to go to another region.
I'm not quite sure where to meet up just yet, since Khawill apparently wants to start RP'ing with me from the bat and I'm not sure where his/her characters are headed, but... Vermillion seems like a pretty safe bet, dunnit? That way, Jackson would be able to go east and up along the coast, to Lavender.