Apparation and Sirius' vault

[huntergreen_3]

No: HPFGUIDX 110473

b_boymn wrote:
>> As far as Portkeys, we have only one instance of a Portkey that 
wasn't controlled by Dumbledore, and that is the Tri-Wizard's Cup. 
However, there is a large group of people that support the idea that 
the Cup was alway a Portkey to take the winning champion to a 
location just outside the maze.
What Fake!Moody did was add another stop to the Cup. Moody's
destination was put on last, so it was used first, that took Harry and
Cedric to the graveyard. That left the original destination
unactivated, and Harry used this to get back Hogwart at a location
just outside the maze. <<

Amey replied:
>>as for the Cup,
"I offered to carry the Triwizard Cup into the maze before dinner," 
whispered Barty Crouch. "Turned it into a Portkey. My master's plan 
worked. He is returned to power and I will be honored by him beyond 
the dreams of wizards."
(GoF)

So, I am not sure the Cup was already a portkey, it could be
 but 
then what Crouch did was not add a stop, but change the destination 
completely.<<

HunterGreen:
But then why did the portkey return Harry to Hogwarts? While that 
quote seems to suggest that Barty changed the cup into a portkey, 
there's another that suggests that it was one already:

"He opened his eyes.
He was looking up at the starry sky, and Albus Dumbledore was 
crouched over him. The dark shadows of a crowd of people pressed in 
around them, pushing nearer; Harry felt the ground beneath his head 
reverberating with their footsteps.
He had come back to the edge of the maze. He could see the stands 
rising above him, the shapes of people moving in them, the stars 
above."

If it was just a two-way portkey, why didn't it bring Harry back to 
the center of the maze?