Hermione looked up from the shelf, surprised that he'd even answered her actually. Most people heard her ramble and just sort of tuned her out.
"What? Oh, yes, of course. And to be honest I don't expect to find a way to go back safely. Not really. I time traveled quite a bit in third year, and even goj g back a few hours in my own timeline was very... Difficult."
She shrugged and began absent mindedly fiddling with her fingernails. "But that doesn't mean I don't want to try to understand it as best I can! I can't stand not knowing something that important. Don't tell me you aren't even a little curious as to how it all works!"