Why not floo instead of thestral to London?

[john_the_walker82]

No: HPFGUIDX 91569

<carolynwhite2 at a...> wrote:
> Is anyone else as irritated as me that Harry and Hermione didn't 
just 
> floo out of Umbridge's office straight to Grimmauld Place, instead 
of 
> wasting all that time being caught and riding thestrals to 
disaster 
> in the MoM ?

It seems highly unlikely that, given the protections on 12 Grimmauld 
Place, that you would be able to Floo in, especially when not 
expected. I think that the fireplace can only be used as a 
communication tool, rather than a travelling one. I wouldn't be 
surprised if the Hogwarts fireplaces operated the same way. After 
all, what is there to prevent the school from just giving students a 
time to Floo into their common room fireplace at the start of term, 
rather than having to take a long train journey from London?

John the Walker