Ava Potter was born on March 27, 1960. Her brother was her twin. But unfortunately, Ava was stolen the night she was born and was put in some random muggle house. Ava's Parents, Fleamont and Euphema, searched for her for years but they never found Ava. Meanwhile, Ava was growing up in a small house with her 'parents' Charlie and Rose Evans. She had two 'sisters' Petunia and Lily. Lily and Ava grew very close.
One night Ava was woken up to someone knocking on her window. There stood two adults, both were average height. They came into the room and told Ava to pack her stuff. Ava did as she was told. Honestly, she wanted to leave that house. Ava loved Lily and felt bad for leaving her but she knew she had to go. The two adults brought Ava to the nearby forest. A second later they were in front of a tall black house.
The next morning Ava met two boys. One Regulus Black who was two years younger than Ava. The other Sirius Black who was the same age as her. (about 6 and a half years old at the time)
One day Ava got a letter. Sirius got the same letter. Sirius had to explain everything about witches and wizards since Ava had lived in a muggle house. Sirius and Ava were practically sister and brother. The night before they went to Hogwarts Ava went out on a walk. About halfway through her walk, some lady came up to her. Her name was Holly Potter and she said that Ava was a very powerful witch, but also very dangerous. Holly then explained everything about Ava and her powers. Before Holly left she gave Ava a box and told her to give it to a muggleborn witch that she trusted with her life.
This is where the story begins.