Over Kill with Dementors

[pippin_999]

No: HPFGUIDX 98072

Susan
> Anyway, when you say the Dementors are tracking Sirius at the 
end of  PoA, are you talking about the night all h*@# broke loose 
in the  Shrieking Shack, when they would've kissed him if not for 
Harry's  patronous?  <

Yes. The sequence of events is as follows:
1) The full moon appears
2)The unconscious Snape collides with Lupin, Pettigrew and 
Ron
3)Black freezes, and throws out his arm to stop Harry and 
Hermione
4)Lupin begins to transform
5)Black catches Harry around the waist to stop him running to 
help Ron
6)Crookshanks backs away
7)Lupin completes his transformation
8)Sirius transforms
9)Sirius battles  the werewolf
10) Pettigrew dives for Lupin's dropped wand
11) Pettigrew stuns Ron
12)Harry uses expelliarmus on Pettigrew
13) Pettigrew transforms
14) The werewolf takes flight towards the forest
15)Padfoot pursues Scabbers toward the lake
 16) Harry and Hermione dash over to Ron
17) From beyond their vision, they hear the yelping of a dog in 
pain
18) Harry runs flat out toward the sound
19) Harry senses the cold of a dementor's approach
20) He reaches the lake shore and sees that Sirius has turned 
back into a man
21) Harry sees least a hundred dementors  gliding toward them 
around the lake.


The Dementors' arrival serves Peter well--not only do they stop 
Sirius, they also leave the entrances unguarded, allowing Peter 
to complete his escape from the grounds. But what brings 
them? Surely a dog chasing a rat wouldn't entice them from their 
posts? Nor can it be Harry's heartfelt desire to help Sirius--the 
Dementors are already approaching, causing Sirius to yelp in 
pain, while Harry is still trying to  get his head straight.

The only way I can figure is that someone not only summoned 
the Dementors from the entrances, but directed them until they'd 
gotten close enough to Sirius to force him into human form. 

We don't know exactly how one communicates with Dementors. 
But if Voldemort can put images into Harry's mind from hundreds 
of miles away, is it far fetched to suppose that a human could 
serve as a dementor's "eyes" ?

Pippin