CoS. Question regarding Snape mentioning polyjuice and book name with formula.

[vmonte]

No: HPFGUIDX 125546


vmonte:

I was looking for a reference in CoS when I came across something 
that I think is odd.
_________
Page 159, Cos, U.S. edition:
"What we'd need to do is to get inside the Slytherin common room and 
ask Malfoy a few questions without him realizing it's us."

"But that's impossible," Harry said as Ron laughed.

"No, it's not," said Hermione.  "All we'd need would be some 
Polyjuice Potion."

"What's that?" said Ron and Harry together.

"Snape mentioned it in class a few weeks ago--"

"D'you think we've got nothing better to do in Potions than listen to 
Snape?" muttered Ron.

Page 160:
"But getting hold of the recipe will be very difficult.  Snape said 
it was in a book called Moste Potente Potions and it's bound to be in 
the Restricted Section of the library."

vmonte: 
Snape doesn't show the students how to make the potion, but he does 
tell them where they can find the potion, interesting.
_______
 
Page 164:
Hermione opened Moste Potente Potions carefully, and the three of 
them bent over the damp-spotted pages.

vmonte:
Damp-spotted? Am I reading this wrong? Shouldn't it read dry-spotted? 
Did someone else recently use this book, getting some of the pages 
wet? If so, who? 
__________ 


Page 188:
"If I ever find out who threw this," Snape whispered, "I shall make 
sure that person is expelled."

Harry arranged his face into what he hoped was a puzzled expression. 
Snape was looking right at him, and the bell that rang ten minutes 
later could not have been more welcome.

"He knew it was me," Harry told Ron and Hermione as they hurried back 
to Moaning Myrtle's bathroom. "I could tell."

vmonte:
So, if Snape knew, why didn't Harry get in trouble?


Vivian