Cassia Potter is the twin sister of Harry Potter. Having been separated after they both survived the Killing Curse, neither knew they had a sibling. But 11 years later, a chance meeting in Diagon Alley reveals everything. At Hogwarts, they discover much more than magic and friendship. And what happens when a certain Hufflepuff boy takes a liking to Cassia?

Rosalie is the daughter of Bellatrix Lestrange, the worst Death Eater in the wizarding world. Everyone avoids her. They think she's evil, that she's no better than her mother. Not even her own cousin Draco seems to give a damn about her. Rosalie has been neglected and hated her whole life. Can a certain Chosen One change that?