Ponessa glanced up at the Slytherin girl again. She gave a quick, nervous wave, as she did to everyone, and her eyes fell back onto the yellowed pages of the book:

And the silken sad uncertain rustling of each purple curtain
Thrilled me--filled me with fantastic terrors never felt before;
So that now, to still the beating of my heart, I stood repeating
"'Tis some visiter entreating entrance at my chamber door--
Some late visiter entreating entrance at my chamber door;
This it is and nothing more."

She re-read these selected words a few moments before turning the page.