Lupin and the DADA curse was Re: Snape, Kreacher and the death of sirius

[pippin_999]

No: HPFGUIDX 139385

 
> Carol responds:
> For me, the only reasonable explanation for Lupin's uncharacteristic
behavior is the DADA curse, which also explains why Pettigrew showed
up on the Marauder's Map (which Lupin ought to have turned in) just
as he was looking at it--on a full moon night when he had not yet
taken the potion (which Snape was dutifully bringing just seconds too
late).
> The curse not only caused Lupin to transform without his potion and
endanger three students (insuring that he would be forced to
resign), it may also have caused Wormtail to escape to the Dark Lord. 
That's the only explanation that makes sense to me. See my post on
the DADA curse and the resulting thread for more details on this
theory, which is still a work in progress:

Pippin:
I'm afraid the only reasonable explanation for Lupin's behavior is 
that he's a double agent. We know now he could have sent his
patronus up to the castle for help at any time. Even if he forgot
about the full moon and everything else, it's difficult to understand
why he wouldn't have done so -- unless he knew Pettigrew couldn't
be allowed to fall into Dumbledore's hands.

The curse forced Lupin to reveal what he was -- a killer.  But
Harry's mercy intervened to save Pettigrew's life and give Lupin 
one last chance. Unfortunately, he used it to return Pettigrew
to Voldemort. 

Pippin