User blog comment:Merlin-HarryPotter1/Series 5 - Where does Morgana Live?/@comment-4892425-20121103135242

Given her recent alliance with Odin, I think she was hiding out in his kingdom after Ismere. Now that Odin is Arthur's ally, the Dark Tower may be her new home (until this new scheme to bring down Camelot through Gwen eventually fails). I think she moves around to avoid getting captured again.