"Thank Merlin!" Hermione said breathlessly, catching sight of the exchange students. She bore down on Hiei, eyes bright with relief, and shoved her book - the massive Defense text, Harry realized - under Hiei's nose. "Could you look at this?" she asked, flipping it open to the first chapter and tapping the page.
Hiei pushed the book away slightly, probably so he could actually see the text. "'In the beginning, the universe contained infinite mass and infinitesimal dimension,'" he read aloud. His eyes flicked up to Hermione, and he made a soft, disdainful sound. "The translation is close enough."
"But how can that *be*?" Hermione demanded - not sounding shrill, but rather challenging.
Hiei shrugged. "I don't care."
Hermione paused, visibly taken aback, before she flipped the page and plunged ahead. "That wasn't what I was really worrying about, anyway." She gestured into the book. "Where's the rest of the chapter?"
Hiei cocked his head slightly to the side. "Why are you asking me?"
"It's your textbook!"
"No, it isn't." Hiei didn't let Hermione ask the obvious next question. "Genkai's never used a specific text with us. Her copy of that one," he glanced at the book, "is a scroll. I didn't know it *came* as a book."
"Then how can I read the rest of the chapter?!" Hermione wailed.
"Don't." And with that, he turned on his heel and went upstairs.