OK... theory I read while I was gone

[grindieloe]

No: HPFGUIDX 56951

I have heard of this Lupin = James theory many times, and it was in a 
book I just finished as well (which I assume is the same book several 
of you mentioned in prior posts).  While I do see some evidence that 
this is possible, my main problem with this (and it always has been) 
is the fact that Lupin (as James) would know of Sirius' innocence.  
Wouldn't James himself know that they had changed to Peter as the 
Secret Keeper?  Lupin does not believe in Sirius' innocence until the 
Shrieking Shack scene, so this just doesn't go with the Lupin is 
James theory. 

I think that if Lupin really was James, he would have gone to the 
ministry long before now to explain that Peter was the Potter's 
Secret Keeper, not Sirius. In fact, as some of you have mentioned, I 
do think that Sirius acts more like a father to Harry than anyone.  
Of course, he certainly is the closest that Harry has to an actual 
father, so that could be the explanation... or there could be 
something more to it.  

grindieloe