Opal Marvolo Riddle

Opal Marvolo Riddle is the Biological daughter of James and Lily Potter thereby making her the biological twin sister of Harry Potter. She is the same age as Harry and was born on the same day as him. When Voldemort adopted her, she was given the surname of Riddle and when Voldemort found her, she had a name inscribed into her cradle which gave Voldemort the impression that the name was the name of the infant. He decided to adopt the infant.

Appearance
Opal is a beautiful young lady who has jet black hair which was due to the fire that ravaged Godric's hollow. Like her biological brother, She has beautiful green eyes and fair skin. Despite not being the biological daughter of Voldemort and Bellatrix, she has a strong resemblence to the latter hence she was known as "Bellatrix's daughter" because she took after Bellatrix. She did however not always have black hair as the hair was a result of the fires in Godric's hollow. On her forehead is the same lightning-bolt shaped scar that Harry has on his head however unlike his scar, Opal's is a tiny bit smaller.

Personality
She can be extremely vicious to those who are enemies of both her and the faction she was raised with for her entire life. Up until she discovered that she was the biological sister of Harry Potter, she hated and despised the order of the phoenix because of how she had been raised. Until she had found out that she was his biological sister, Opal hated and despised Harry Potter. Things came to ahead when her sister (Sierra) claimed that she hated Harry and she hated her adoptive sister however once it was confirmed that Sierra had been running around and having numerous children with numerous men including the man she claimed to have hated, everyone was hostile towards Sierra. Opal is really nice to those she likes and when she was alone with Vincent Crabbe she could be really flirty towards him as she loved him and he returned her feelings hence they ended up marrying and having children.

Background
Opal is the biological sister of Harry Potter. This is a secret her parents knew and because of the way that Opal had been brought up and even before her constant hatred of the Order of the Phoenix, they kept this secret far away from her because they wanted to protect her and so they destroyed any birth certificate that provided evidence of Harry being Opal's biological sister. However this did little to shut up any rumours as Hermione and other students made rumours that Opal was not the biological child of Voldemort and Bellatrix Lestrange. However when staff heard these rumours, Voldemort came to the school and insisted for his daughter's sake that they do not bring up these rumors. The key points that Hermione sees in Opal are as follows:


 * 1) She bears somewhat of a resemblence to Harry Potter
 * 2) While there were rumours going around the school that Harry had a lost sister, the name, nature and upbringing of this sister was unknown until Hermione managed to make the connections.
 * 3) Hermione sifts through records of Opal's birth and manages to retrieve the ones that had been destroyed.
 * 4) Opal carries the same scar as harry Potter did.

These rumors did however manage to get to Opal when, in 1995-1996 Sierra told Opal in a mocking tone, "You're not even my biological sister, knowing your famil history I wouldn't want to be affiliated with you anyway. Luckily for me I have some news, you are not my biolgical sister, Voldemort is not your father, you are not a member of my family. You are the offspring of a mudblood and the biological sister of that disgusting boy Harry Potter. I have the documents to prove it. Goodbye 'Opal Riddle' Or should I say 'OPAL SIOBHAN EUPHEMIA POTTER!' Get your dirty hands away from my family!" She then showed Opal the birth certificate that she managed to steal from the Wizarding Archives. This lead Opal into a deep depression and she went as far away from the school as she could. Voldemort was instantly contacted by Albus Dumbledore and he was furious when he came to the school and that is when he decided then and there to disown Sierra for not only being a disgrace to the Riddle family name but for the hateful way she has treated Opal. In an unprecented move Harry offers to help Voldemort find Opal and bring her home. Voldemort is hesitant at first but he agrees and he orders the whole school to help him find Opal.

The students gather in the great hall and Voldemort looks sadly at Bellatrix who arrives to help her husband find their adoptive daughter and then he looks at the students and says to them, "Before we begin the search for Opal, I will say that yes Opal is not our biological daughter and she is the sister of Harry Potter. This is a secret that we wanted to keep from her because we knew it would tear her up if she found out that she was not our daughter. While Opal was not our daughter by blood, we loved her as if she was our biological daughter and she even bore a resemblance to Bellatrix. However, while Sierra is our daughter by blood we have heard of the things our daughter Sierra has said and done and it is from what we have heard that we make the following announcement," Voldemort, seeing Sierra, looked at her and said "Sierra after all you have done, you are to all intents and purposes a disgrace to the Riddle name and therefore it is only fitting that you will be stripped of the right to use our surname. We know about your sexual adventures and we know about what you have done to your sister you pathetic little wench! Hence why from now on you will be taking the surname of one of the men whom you have had sex with. You will be taking the surname of Dumbledore, so from now on you are Sierra Emily Dumbledore"

After Harry comforts Opal and brings her home, he is rewarded by Dumbledore. Opal is asked what she is going to do by other students and she says that despite what she has heard she is going to keep her adoptive name. Harry tells her that she can change her name and become "The Girl who lived" but she refuses the idea and says that she is happy to keep her adoptive names. Voldemort reveals that he is pulling her and Sierra out of hogwarts due to what Sierra has done and he is sending Sierra off to BeauxBatons Academy where he knows that she will be bullied for the rest of her schooling days as his eldest daughter Pandora was really popular and he knows that her friends have heard about what sierra has done to Opal. Pandora's friends love Opal just the way Pandora loves her little sister Opal and so it is due to this that Sierra is bullied relentlessly by the students and she receives no sympathy from her sister who does little to stop the others from bullying her. When Sierra tries to report the bullies to Olympe Maxime, the first response she got was "Why should I help you? You brought this on yourself. You basically asked for these students to bully you. There is nothing I can do to help the fact that you were such a disgraceful little wench!" The next time she repeatedly asked Olympe for help, Olympe responded in french as she said "Vous avez apporté cela sur vous-même".

Opal goes on to marry Vincent Crabbe when she grows up and they have numerous children. Because she followed in her adoptive father's footsteps of having horcruxes and because of herself also being a horcrux, her and her father outlive numerous people including her children, her grandchildren and her great-grandchildren.

Lily and James Potter
Lily and James Potter are Opal's biological parents and they named her after both of their mothers. They would have loved her as much as they loved their son Harry as they would have wanted to protect both from Voldemort, however Voldemort ends up adopting Opal and raising her as his own and as she has spent more time with him than with her own biological parents, Opal would not have had any feelings of affection for them and whatever feelings she had for them may have now been gone as she grows up hating the Order of the phoenix and actively championing the Death Eaters. Once Opal learns that she is their biological daughter and Harry's sister she starts to have affection for them but she says that her affections toward her adoptive parents will never change and she has more affection for her adoptive parents than what she does her biological parents.