Martha Clarendon...Was she a Wizard?
Was Martha Clarendon a Wizard, or some other very powerful force of good? A being that is the polar opposite of LiNoge? Has been around for thousands of years in different forms and now just so happens to be an old woman?
Perhaps that is why LiNoge killed her very first thing? He sensed her power and that she could defeat him, so he caught her off guard, killing her physical form only.
Or perhaps Martha knew all along the demon would come and allowed it to kill her physical form so she could be born anew, as something much more powerful, which will eventually hunt down LiNoge and destroy him for good?