Wicked Oblivion

Hermione has been writing in her diary since her second year (Don’t worry, I’ve checked it for any possible Riddle peculiarities) at Hogwarts. One night, while with the Order, she witnesses something terrible and wishes that things were different. However, the wish goes awry, because the fairy who granted the wish is none-other than the Darkness Fairy. How will Hermione deal with her new position at Hogwarts and in the war? Dark fic, AU.