OOP: EVEN DUMBLEDORE HAS MAGICAL LIMITS

[ssmith621964]

No: HPFGUIDX 64499

SPOILER
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Okay, I am sure that I am missing somewthing very important that 
prohibits it, so please gently correct me when I ask a stupid 
question.  Wasn't one of the rooms in the MoM filled with Time and 
lots of Time Turners?  Why didn't someone just use a time turner to 
go back and prevent Sirius falling through the archway?

Also, if this was not possible why didn't Dumbledore simply intervene 
and save Sirius?  Just a minute before as a Death Eater tried to 
escape from the "arena of death", Dumbledore's "spell pulled him back 
as easily and effortlessly as though he had hooked him with an 
invisible line".

SO when Bellatrix hit Sirius with her second jet of light and Harry 
jumped down the steps pulling out his wand and Dumbledore  turned to 
the dais too, and Sirius seemed to take an age to fall-WHY, OH WHY 
did Dumbledore NOT cast the same spell he had used on the DE and pull 
Sirius to safety? It would appear the greatest wizard that ever was 
has limits to his talent.  What do you think.
Sue