Why Petunia Agreed to keep Harry

[justcarol67]

No: HPFGUIDX 93179

- 
> Kia wrote:
> I think the reason why Petunia let Harry stay, is simple blackmail 
> from Dumbledore. I am not entirely sure how Dumbldore could 
> blackmail Petunia in letter without Vernon realising it, but  I am 
> very sure that if Petunia or Dudley have magical talent, Petunia 
> would have zero interest in Vernon knowing about it.
<snip>


Like a number of other posters, I think the original letter informed
Petunia about the protective charm DD had placed on Harry as long as
he stayed at 4 Privet Drive. If Petunia knew that the protection given
to Harry extended to her and Dudley but not to Vernon (because he
doesn't share Harry's blood), she would have a reason to conceal the
full truth from Vernon without either blackmail or magical talent in
any Dursley being involved.
 
Carol