Secretkeepers and memory charms?

[mmgardin]

No: HPFGUIDX 59868

--- In HPforGrownups at yahoogroups.com, "Serena Moonsilver" 
<serenamoonsilver at y...> wrote:
> What happens if you cast a memory charm on a secretkeeper?
> 
> 
> Your thoughts?
> 
> 
> I can envision a scenario where after what happend w/ James and 
Lily, 
> Dumbledore once again casts the Fidleus charm and then promptly 
> memory charms the secretkeeper.  So what do you think?
> 
> Serena


I think that it would take an extremely powerful memory charm to wipe 
out a memory of having had the fidelius charm performed.  
Unfortunately, I don't really have any specific canon to back this 
up - but memory charms have been implicated in altering the integrity 
of memory charm recipient's memories (Bertha and the muggles at the 
QWC come to mind).  My pet theory (which I will post under the 
predicition thread) concerns this very possibility (someone receiving 
the Fidelius charm followed by a memory charm).

Cheers,
Marcia