Rosabella

Harry wasn't an only child he had a little sister she was a year younger then him the night there parents she was thought to be dead when she wasn't she was taken by a friend of he who must not be named friends who he had grew up with but she didn't have the hart to kill the girl so she put her under a age spell so she didnt age over the age of five and she was in a freeze spell so she couldn't move hear think or see so in a way it was like she was dead and till she was found when harry was 5 and she was supposed to be 4 she was found and un frozen and the age spell was taken off and she was kept a secret and raised by a Bulgarian family