Obviously the bounty on her head had NOT been rescinded. She needs to find Clark for no other reason than to get some information on what in the devil just happened to her. I assume he has figured out much of it over the years. The question is whether he or they can control it. Also Lois may have some ideas on how to control the portal that have escaped Clark. Doesn't she always??
Side note: My preference is always for a clever/strong Lois character and you certainly seem to be putting forth one in this tale.
This story could go one of a bunch of different ways so I look forward to seeing which direction you take it.
Mike
