3rd Generation in the past

Narcissa Luna

And Draco was right, another hooded person could be seen walking towards the platform and when they take their hood off everyone was confused.

- I thought Sirius Black only had one kid. - a Ravenclaw asks confused.

Most of the Great Hall was really confused as from what Orion had told them, Sirius Black would die months after he will be born, but this girl look very similar to the two Blacks.

Meanwhile, the people who had met Regulus Black knew that the girl looked very similar to the boy, which make them confused as Regulus is dead and he never had any kid.

The only one who weren't confused are Sirius and Remus who knows the truth about Harry's parentage, which, as it seems, will be discovered soon. This also means that this is Harry's daughter.

The black-haired and grey-eyed girl sighs and then glares at Sirius Theo.

- Siri should have told them. - she whispers but no one hears her. - I'm not Sirius Black's daughter.

Everyone was more confused with this statement, if she isn't Sirius Black's daughter then who are her parents?

The girl sighs again and then looks at her brother, without being seen her brother nods, so she turns to the Great Hall.

- I'm Narcissa Luna Potter-Black and yes, I'm Siri's sister. - she says and leaves the Great Hall in shock, first because of her name, second because of her surname and last because she doesn't look as Harry Potter at all.

Remus and Sirius sigh, they already knew that the secret would be revealed.

Harry, as well as everyone, was shocked, her daughter doesn't look much like him and looks more like Sirius Black.

- Narcissa? - Narcissa Malfoy asks, she was of course shocked because of her appearance and surname, but she wanted to know why Potter would put her name to his daughter.

- That's not the only surprising thing about me, grandma. - Narcissa Luna replies shocking once again the Great Hall. - Don't be so shocked about this, I also call Andromeda grandma.

Both Andromeda and Narcissa look shocked by this development, especially Narcissa as Potter seems to hate her family, but they probably got close as they have a godson in common.

- Why do you look like Regulus Black? - Severus Snape asks, making the people who don't know about Sirius' brother to be confused.

- Who is Regulus Black? - Harry whispers to his friends but they just shrug their shoulders.

- I knew that someone will ask that. - Narcissa Luna rolls her eyes. - I don't actually look like Regulus Black. - she replies, making the people who knew Regulus Black to look at her with skepicism. - You can ask Sirius or Remus.

The people turn their gazes to the mentioned people hoping for an answer.

- Do you look like Rigel? - Sirius asks, this causes people to look at him with questioning glances as nobody knew any Rigel.

- Yes, I do. - Narcissa Luna replies.

- Who is Rigel? - Harry asks, he wanted to know if that was the other parent of his kids and he isn't the only one, many people had arrived at this conclusion, except the delusional four that want him to marry Ginny.

Narcissa Luna starts to laugh as she had realized that people were thinking that Rigel is her other parent.

- Whatever you're thinking is wrong. - Narcissa Luna tells them and then she looks at her mother. - Dad, you're Rigel. Your full birth name is Rigel Harry James Potter-Black. You are the reason of why I look like this.