Ernie, who was seating in the Gryffindor table (inter-house rivalry disappeared when Nanoha shook up the social system with inter-battalion rivalry), piped in. "What's with our Professor-"
"She's no professor anymore," Fred interrupted.
"-our Instructor anyway? how did she manipulate the rules that way, anyway? She's no Hogwarts student, how does she know what to do?" Ernie finished.
Harry explained. "Nanoha used to work in a place with all sorts of red tape." Harry couldn't quite express the sheer impossibility of difficulty that Nanoha told him about in regards to the laws and protocol that governed an intergalactic bureaucracy. "The first thing she did when she got here was look into the paperwork stored in the library."
"The entire thing was was planned from the start. Dumbledore had this all figured out since summer, and Nanoha was his greatest asset as a smokescreen," Fred said.
"The scope of thing, it's quite tremendous," George said. "Do you know what this means, brother?"
The twins spoke in unison. "Dumbledore and Nanoha had played the biggest prank in school! This one will be hard to beat." Everyone else stared at them.
"Anyway, Dumbledore will be back, right?" said Neville hopefully. "I'd hate to be stuck with-"
"That insane poisonous toad," Dorian said.
"You forgot swollen and self-righteous," added Eckhart.
"...with that in Dumbledore's office," finished Neville.
"I wouldn't worry about that. Hermione's right about her not being officially Headmistress. I heard from the Fat Friar, right after the Educational Decree was official last night, Umbridge tried to enter 'her new office', but the gargoyle won't let her in, no matter what password she used," Ernie said.