Post by Tim BrueningPost by Tim BrueningHarry sends Hedwig to deliver letters to Sirius, Ron, and Hermione.
To
deliver those letters, Hedwig finds a house that is both Unplottable and
protected by the Fidelius Charm that makes it unfindable unless
Dumbledore tells you where it is.
How in the world can an owl find such a house? This looks like a gaping
loophole in magical protection spells!
In the beginning of HBP when Harry stays with Ron all their mail was
redirected to the ministry and then sent on.
"And lastly, while you stay here, the Burrow has been given the highest
security the Ministry of Magic can provide. These measures have caused a
certain amount of inconvenience to Arthur and Molly - all their post, for
instance, is being searched at the Ministry before being sent on. They do
not mind in the slightest, for their only concern is your safety
The mail could have been redirected to DD's office and then sent to the
Headquarters.
Post by Tim BrueningThis is a gaping loophole in the Fidelius Charm! All Voldemort need do is
write a letter to "Order of the Phoenix Headquarters" and tell an owl to
deliver it, then come straight back, then Legimen the owl to determine the
location of OOTP HQ!
<with snipping>
The dark lord couldn't Legimen Snape to get the location.
"They were joined, as you very well know, by half of the Order before long!"
snarled Bellatrix. "And, while we are on the subject of the Order, you still
claim you cannot reveal the whereabouts of their headquarters, don't you?"
"I am not the Secret-Keeper; I cannot speak the name of the place. You
understand how the enchantment works, I think?