[S11.E01: Out Of The Darkness]

I thought there was only one Death. He did tell Dean that he and God didn't remember which one of them was older.

He did say that. Of course, he could have been lying. After all, that's when Dean and Sam were going around killing the Horsemen. He may have just woven a really good tale so that Dean didn't try and kill him. We only have Death's word on any of that and Supernatural beings are usually not very trustworthy on this show.

[S11.E01: Out Of The Darkness]

Hello!  New to the board and late to the game (or at least this thread) but I thought I'd add my two cents re: Darknesses statement of "I don't know this Death and HE doesn't know me".

 

I think that she was referring to not knowing this *current incarnation of* Death rather than the concept of death itself, otherwise there is no point to her saying "and he doesn't know me." To me, she sound slightly pissed that someone who never knew her was telling tales. Why should we trust that Death was telling the truth?   Maybe the reason Death was so set on making sure that Darkness didn't return is because she had a hand in the demise of the prior Death (or Deaths).  

 

I also think it's a mistake to assume that while Darkness was "away", she had no knowledge of what was happening in the world.  She seems very up-to-date considering when she was locked up the world was nothing more than primordial ooze.  Maybe she was aware of everything that was happening, after all, we don't know the extent of her abilities.  Darkness is a complete unknown.  Neither the Demons or Angels know anything, they only have rumors and legends to go on. And we know how inaccurate those can be on this show.  

 

Final thought: The whole point of the first episode what that "saving people" meant saving everyone, or at least trying to.  Both Dean and Sam have walked on the dark-side but both, in the end, chose the side of good.  What if the point of this season is to "save" Darkness?  Or at least to offer her the ability to chose what she is.