These sisters would protect each other if they could make it work. They’d also go on to protect Harry and Hermione’s children, be part of building a better world with them. The love of siblings could simply be that profound. Harry knew that even though he’d never had any brothers or sisters of his own. As much as he detested the Weasleys, no-one could deny the strength of their bonds, not even Harry. Even Dumbledore had been saved from Darkness by the remorse he felt over the death of his sister.