She was sure. Of course there was always a margin of error, but she was sure. Or at least she thought she was.
But Romilda wasn't the only one nervous about this; her shifting and hand twisting was only making things worse for Hermione who definitely did not want to do this wrong. She'd only just finished writing to Harry when the solution occurred to her. After having called herself stupid eighty seven times, she'd found Romilda and brought her to her room.
"Could you please sit down?" Hermione asked, trying to keep from snapping at the other girl. "I've checked and double checked and triple checked and yes, I'm sure. But I need you to think about the memories you've lost I that can find them again. That means I need you to stop thinking about how nervous you are or this is not going to work."