Where is she?

Harry found Ron at the back of the library, measuring his History of
Magic homework. Professor Binns had asked for a three-foot long
composition on "The Medieval Assembly of European Wizards."
"I don't believe it, I'm still eight inches short ..." said Ron
furiously, letting go of his parchment, which sprang back into a roll.
"And Hermione's done four feet seven inches and her writing's
tiny. "

"Where is she?" asked Harry, grabbing the tape measure and unrolling
his own homework.

"Somewhere over there," said Ron, pointing along the shelves. "Looking
for another book. I think she's trying to read the whole library before
Christmas."

Harry told Ron about Justin Finch-Fletchley running away from him.

"Dunno why you care. I thought he was a bit of an idiot," said Ron,
scribbling away, making his writing as large as possible. "All that junk
about Lockhart being so great -"

Hermione emerged from between the bookshelves. She looked irritable
and at last seemed ready to talk to them.

"All the copies of Hogwarts, A History have been taken out," she said,
sitting down next to Harry and Ron. "And there's a two-week waiting
list. I wish I hadn't left my copy at home, but I couldn't fit it in my trunk
with all the Lockhart books."

"Why do you want it?" said Harry.

"The same reason everyone else wants it," said Hermione, "to read
up on the legend of the Chamber of Secrets."

"What's that?" said Harry quickly.

"That's just it. I can't remember," said Hermione, biting her lip. "And
I can't find the story anywhere else -"

"Hermione, let me read your composition," said Ron desperately,
checking his watch.