Julia

“What are you doing with all those books anyway?" Ron asked, limping back to his bed.
"Just trying to decide which ones to take with us," said Hermione. "When we're looking for the Horcruxes."
"Oh, of course," said Ron, clapping a hand to his forehead. "I forgot we'll be hunting down Voldemort in a mobile library".”
― J.K. Rowling, Harry Potter and the Deathly Hallows

“When in doubt, go to the library.”
― J.K. Rowling, Harry Potter and the Chamber of Secrets

“Fred and George, however, found all this very funny. They went out of
their way to march ahead of Harry down the corridors, shouting, "Make way for
the Heir of Slytherin, seriously evil wizard coming through ......

Percy was deeply disapproving of this behavior.

"It is not a laughing matter," he said coldly.

"Oh, get out of the way, Percy," said Fred. "Harry's in a hurry."

"Yeah, he's off to the Chamber of Secrets for a cup of tea with his fanged
servant," said George, chortling.

Ginny didn't find it amusing either.

"Oh, don't," she wailed every time Fred asked Harry loudly who he was
planning to attack next, or when George pretended to ward Harry off with a large
clove of garlic when they met.”
― J.K. Rowling, Harry Potter and the Chamber of Secrets

“Yeah, we’ll call you,” muttered Ron as the knight disappeared, “If we ever need someone mental.”
― J.K. Rowling, Harry Potter and the Prisoner of Azkaban