I'm just going to throw out some random supportive points for your theory, well-known to most of the folks on this forum by now. I (and 10% of the world population) have vomited forth thousands and thousands of detailed posts on this subject, so if you're aiming for a solid theory you probably want to search for "Deceiver" in the archives and see the main points made on both sides. Not that your theory's necessarily incomplete--you just want to know what everyone already agrees with and what's still disputed, before you waste time arguing things you don't need to. :-)
: Firstly, Myrdred is never mentioned as having died. This
: isn't a strong point in my theory because he is never
: mentioned as NOT dying, meaning he might actually have
: died after killing Shiver. I'm just saying that with
: no clear clarification on his fate in the journal or
: epilogue, it can't really be determined.
Some might call "The Fallen Lords are dead" in the epilogue a statement of his fate, but then he may not be classified as a Fallen Lord once he's returned to the Light side. And of course the narrator could simply know that Myrdred appeared to die, without knowing that he actually didn't.
A rather strong journal-based point in favor of his survival is that in the journal entry after "Shiver," the narrator talks about The Deceiver still having possession of Soulblighter's crow--present tense. Now this journal is actually dated the same day as "Shiver," but I've presented evidence in the past that this is a mistake--I think it actually takes place two days later, on the same day as "The Forge." Also, at the end of the Forge we apparently see Soulblighter trying to turn into crow-form and failing, which would imply that Myrdred was still around and containing that crow.
: Secondly, when Myrdred kills Shiver, he does so at close
: range. Shiver "explodes" when she dies.
: Perhaps her body was designed to explode on this level
: simply because it would detour the player from
: actually trying to kill her before the end of the
: level "Shiver" (if that's possible, I've
: never tried). I once played the level, and the big D
: killed Shiver and SURVIVED her combustion. An error in
: the tags, or perhaps something in the physics that
: screwed up like a strong gust of wind or something?
: I'm not sure, but this proves (whether you believe it
: or not) that the big D does not always die on the
: level. It is very much possible that he lives to fight
: another day.
You can also kill Shiver much earlier in the level, using Oderic. Unfortunately, I don't think things like this provide much evidence. The script can be outsmarted on most levels, and if you accepted all possible outcomes there wouldn't be much story left. :-)
: If he actually does die, he may have the ability to
: transfer his mind to another body (like the Agents in
: the Matrix), and he might have done this just before
: he died. It's possible, since he can bend other to his
: will, no? He could have possesed one of the heroes and
: actually delivered one of the killing blows to
: Soulblighter's army at Tharsis (not in the actual game
: -- but the storyline of the game itself). This is
: completely stupid, but I'm just saying it could happen
: =)
Some people have theorized that Phelot received Myrdred's mind at the end of that level--otherwise it's something of a mystery why he simply floats off, and why the Champions allow him to depart.
Again, there are rebuttals and counter-rebuttals to all your points and mine in the archives...save your fingers a few hours of superflous typing and check them out at your leisure. :-)
--SiliconDream