Blue Starfish

Harry, Hermione, Draco and Ginny are back for Harry's fifth year, and after Harry discovers he and the others have strange powers they can neither explain nor control, they are sent to a different wizard school to master their magic. Meanwhile, what is Sirius hiding from Harry about his past with Lily Potter? And what is Voldemort's Evil Plan? H, Hr, D, G love quartet, with SB/NM pairing. (Prequel to be set in MWPP era, detailing Sirius' life at Hogwarts - SB/RL slash, and lots of angst splashed in there).