Hermione + Ginny
"Honestly? I've no idea." Hermione knew Ginny had been taken a year later than she and the others had been, and the fact that no one had reported her, Lavender, or even Millicent as missing in her timeline perplexed her greatly. Everything she'd learned from owning a Time Turner told her that this was an impossible inconsistency.
"If our experience is anything to go by, especially when combined with some of the other stories I've heard from other people in Marrowood..." She trailed off, knowing that what she was about to say sounded crazy. "I don't think they've noticed a thing. What I do think, though, is that there's multiple timelines, different versions of our world... I don't know how it all works, but it doesn't make sense that you wouldn't have noticed a thing about us disappearing."