In 1977 Narcissa Malfoy starts spying for the Order of the Phoenix.
Hermione had two goals in her Fifth Year: defeat Voldemort and date Marlene McKinnon. Hermione already knew how to kill Voldemort. Seducing Marlene seemed infinitely more difficult than burning a few Horcruxes created by a wizard terrorist. Teenage hormones really skewed her perspective. (one-shot)
James Potter loves a good adventure, but he gets more than he bargained for when Carina Black tumbles into 2028. Portraits, pendants, and purebloods should not be trifled with.
Rose Weasley didn't plan to do any of this. All she planned to do was sit on the couch, drink wine, and cry on someone's shoulder.
Hermione walked away when she saw him. She didn't have time for hallucinations. But he uttered "Hermione" in such a tone that hallucination or not she turned around and looked at Harry Potter for the first time in years.
Sirius finds her in the bookshelves. It doesn't mean much at the time. (one-shot)