Snape flying away

[pippin_999]

No: HPFGUIDX 187309

Zanooda:
> > I wonder, why Quirrell needed to learn the secret from
> Hagrid, couldn't he overcome the dog some other way (I mean
> other than music) - to use Avada Kedavra, for example :-).
> Or, if he could knock out a troll, why not a giant dog?
> >
> 
> 
> Susan:
> 
> LV was "present" in Quirrell's turban too! He couldn't
> figure something else out? Of course, then we'd have a
> different story.

Pippin:
I think Voldemort wanted to get through the barriers undetected. A brute force attack would probably raise alarms.  Once he got the stone, he would still need  time to brew up the elixir and to create a rudimentary body which could imbibe it, so the longer the theft remained undiscovered, the better.

In any case, Fluffy, like other magical creatures, could be highly resistant to magic. A stunning spell, or even an AK, might not work. 

Pippin