Invisible (a harry potter fan fiction)

Annabel Potter has been looking for her baby brother Harry for years. The only thing she knows is that she's a witch, and on occasions, she becomes invisible for a few seconds at a time. She's been going to Hogwarts School of Witchcraft and Wizardry for two years now. On her third year she goes and finds Harry there! Annabel spends her days trying to get to his attention, but it's hard when every time you try to reach him you disappear! Plus, he has no idea he has a sister. But when she does get to him, something terrible happens. Something that will change both Annabel and Harry's lives forever.