Board Thread:Lore Discussion/@comment-26356342-20150721070617/@comment-9212235-20150727043110

You're free to play it this way and believe this. As you said "headcanon" and all that, but the ascension to godhood by the CoC does not require him to previously be immortal just as the ascension of Arden Sul, Talos, Mannimarco, Vivec, and others who followed one of the Six Ways. The CoC's apotheosis was by Way of the Fourth.

The Vestige is an entirely different beast. Haskill has a little to say about the matter, as he is of the same sort-ish. Personally, I find that it diminishes the Prisoner and his/her place in the Mythic. The idea that every Prisoner is the same person just ruins that for me.

Sorry to burst your bubble.