Things that puzzle or intrigue me

[eligro2000]

No: HPFGUIDX 68120

1) Is it possible that the prophecy concerned 3 people rather than 2?

2) How did the DE's from Azkaban retain their sanity? Sirius said in 
PoA that he retained his sanity solely by turning into a dog.

3) Why did the howler refer to Petunia as "Petunia" (an informal 
appellation) rather than as "Mrs. Dursley" (a formal appeallation 
more appropriate for one known only a little)? (I continue to think 
Harry's might be somehow related to Dumbledore ...)

4) Is Ron going to die? Clues abound ... his achieving his lifelong 
dream of winning the House Cup, his "die Ron Die" comment, Molly's 
seeing a dead Ron as the first form of the boggart, Hermione's 
keeping in touch with Krum, the letter from Percy suggesting it's 
unwise for Ron to hang with Harry, etc.

5) Why did Bellatrix "teach" Harry the proper way to cast the 
Cruciatus Curse if not for Rowling to foreshadow Harry's further use 
of this curse in a later book?

6) Who was the mystery person thrown out of the Hogs Head?