Polyjuice potion/Why did Snape take the UV?/Hermione's Parents

[a_svirn]

No: HPFGUIDX 156863

> Magpie:
> This is one of these things that I just can't get my mind around.  
> How is Snape in any way skillfully getting information about Draco's 
> task through this vow?  

a_svirn:
I am not saying that he's getting information through the vow. I meant 
that he'd been doing it up until the subject of the vow come up. As 
for the vow itself I simply don't get why he took it.