CHAPTER DISCUSSION PS/SS 11, QUIDDITCH

[potioncat]

No: HPFGUIDX 188421


>Carol: 
> Harry concludes that Snape tried to get past the three-headed dog on Halloween night, but that can't be right. Several days, at least, have passed since Halloween at this point and Harry would have noticed Snape limping in Potions class if nowhere else if it had occurred then. But my question is, why did Snape try to enter the forbidden corridor at some point *after* Halloween? Why go in at all when all he needs to do is prevent Quirrell from entering? 

Potioncat:
You know how some staircases and hallways go different places on different days of the week? I think time is a bit dodgy at Hogwarts too. I used a time turner and read ch 17. Quirrell confirms that Snape was bitten on Halloween trying to head him off. All I can think is that Snape was trying to do the same heroic dash through the trap door that Harry will do later on--to see if Quirrell had gotten in.

But I agree there seems to be a longer passage of time between Halloween and the day before the Quidditch match. Harry does notice that Snape is limping when he approaches them and takes QTTA. But there wasn't any indication before that he had been injured.