Lily Evans has a half-sister. Her twin sister, Michela Evans. But Lilly does not know she is only her half-sister. The only reason is this: Michela Evans is the daughter of Zeus. Michela has been going to camp Half-blood since she was 6. She meets James Potter, Remus Lupin, Sirius Black, and Peter Pettigrew when she and Lilly got their letters from Hogwarts. Will Michela be able to keep her secret throughout her seven years of Hogwarts?