Is there trouble in paradise as Alana and Marko become more settled? Or is it just the usual people trying to kill them?

Is there trouble in paradise as Alana and Marko become more settled? Or is it just the usual people trying to kill them?
Will their creator of their relationship survive? Will The Will survive?
So where does Alana and Marko's story originate from is it in a prison cell, is it a man or it is a book?