Snape at Goodric's Hollow / Sirius - Peter SK switch

[Cindi H]

No: HPFGUIDX 120486


Lissa:
> <snip>
> But in PoA, Snape still seems to believe that Sirius is the spy, when he 
> yells at Harry that he'll die like his father, arrogant and believing in 
> Black.  (Is that PoA?)
>
> Snape then runs to the Potters, tries to explain.  The bit about James 
> not believing him rings incredibly true to me- it sounds too realistic 
> and fits JKR's themes too well.  <snip>
>
> Because Dumbledore says that Black was the Secret Keeper, and then the 
> events that occur the next day, Snape believes it.  Heck- Remus believes 
> it, so why shouldn't Snape?  Dumbleodore's word is law.  So when Sirius 
> escapes, Snape still does believe the true spy has escaped. <snip> 


Cindi H:
Do you think maybe that Sirius and Peter switched places (secret keeper) 
and did NOT tell the Potters?  
 
Sirius certainly did not tell DD since he testified that Sirius was the 
Potter's secret keeper, so Snape may have overheard VM planning to kill the Potters.  Snape would still assume it was Sirius who betrayed them (but not hearing the actual betrayal to VM) and not knowing that Sirius and Peter switched places.  Only Sirius and Peter knew of the switch.
 
Therefore, James would not believe Snape if he came to warn him (to repay 
his life debt to James).  James knew that his best friend, Sirius, as secret 
keeper, would never betray him.  But James, still holding a grude against 
Snape, was too arrogant to believe that Snape would warn him of the serious (pun) impending attack.
 
I think James was killed right away as soon as VM arrived.  The voice heard 
by Harry was Snape's telling Lily to take Harry and he would hold off VM.  
This would still coincide with the priori incantatem that James came out of 
VM's wand after Lily.