Solika

Harry, unwillingly, goes with Ron and Hermione to twelve, Grimmauld Place to search for Slytherin's locket. When he finds it, he realizes it's not that easy to open it, let alone to destroy it. When he really needs help, help will come and it will be appreciated... even if it's not in a human form.

Ron finds Hermione writing a letter to Viktor. He starts a row with her (again), but this time Hermione is a little more aggressive...