This fanfic will contain spoilers for the Fantastic Beasts movies.
My beta (Thegeekygirl42) edited the first five chapters so if you want to read them again you can, There are no major changes, only changes to the grammar and a couple of thoughts and feeling are added.
In this fanfic I will use some of the theories about Fantastic Beasts as facts. Because I'm not sure if this will be very clear in the fanfic so I'll write a list of all the theories I'm going to use:
1. Ariana Dumbledore was an obscurial.
2. Credence's Obscurus is Ariana's Obscurus and that's why Grindelwald told him that he and Albus are brothers.
3. Credence/Aurelius is the son of Albus Dumbledore and Gellert Grindelwald. He was created with the blood pact.
4. I think the blood pact is the closest thing to marriage that Dumbledore and Grindelwald could do.
5. The blood pact prevents Albus and Gellert fighting so Araina's death was the outcome of the pact, because their spells couldn't hurt one another and they probably spread out to the area.
6. Dumbledore was born on 31 August (Grindelwald run away on 30 May, and Newt and Dumbledore conversation happened three months later or in other words on the 30 August and Dumbledore was 45 in that conversation, and since his birthday is in the summer, his birthday must be on 31 August). The duel between Aberfoth, Albus and Gellert happened at the end of the summer before Aberforth had to come back to Hogwarts, so that means Ariana died a few days before Albus' birthday.
This fanfic is an AU so it doesn't matter that some of the things listed above revealed to be wrong in Fantastic Beasts: The Secrets of Dumbledore they'll still be in my fanfic, it's AU.
Please read '1 September, 1892' before this fanfic. I'll reference it a lot. Go and read it if you want to understand everything.
Disclaimer: The world of Harry Potter and Fantastic Beasts belongs to JK Rowling and Warner Brothers. I don't own anything.
The smoke dissipated. There were four figures on the floor. Three boys and one girl were lying down on the ground. One boy had auburn hair, the second black hair, and the third one had white-blonde hair. The girl was blonde, and she was on the floor, motionless. The blonde boy opened his eyes first. He had eyes in two different colours, one was grey and the other was blue. The first thing he saw was that black smoke got inside his pendant; his eyes widened. He looked at the girl, she wasn't breathing, the boys were still alive. The blonde boy quickly got up, he glanced at the boy with the auburn hair and ran away. It didn't take long for him to arrive at his great-aunt's house.
'Bathilda, I need a portkey right away! I need to leave Britain as soon as possible!' The boy said the moment he got inside the house; he was really upset.
'What happened, Gellert? Is it related to Albus?' Asked his aunt and came to the entrance of her house.
Gellert looked at her with a meaningful look. 'Please arrange a portkey for me.' He said again and went to his room.
Albus opened his eyes. He saw a blurring of his siblings on the floor. He looked for his glasses, they were near him, and he put them on while he approached his sister. 'Ariana? Ariana, please wake up!' He said in a distressed tone, but when he got nearer her, he saw that she was dead.
Aberforth got up as well, and saw the body of his beloved little sister lying on the floor, without moving. 'Ariana?! Ari?! No, no, no! You can't be dead!' Aberforth ran to the body. 'This is your fault! It's all because of your stupid lover!' Aberforth called, saying the word lover as if he was talking about poisonous snake that everyone should stay away from, tears falling from his eyes.
'You are the one who started to argue with him! Gellert! Where is Gellert?' Albus asked, he looked around for Gellert. 'Where is he?!'
'Why do you even care?! Ariana is dead because of him! He used Crucio on me!' Aberforth called.
'You're the one who started it! You shouldn't have interfered when it was not your business!' Albus yelled at his brother and rose to his feet. He ran to the exit.
'I don't believe you are choosing him over your family!' Aberforth roared at him, but Albus didn't hear that part or he just ignored it and continued running.
Albus ran to Bathilda's house, and opened the door without knocking. 'Where is he?! Where is Gellert?!' He asked Bathilda who came to see who entered the house.
'In his room, he just said he wants to leave Britain today. What happened between the two of you, Albus?' Bathilda asked calmly. Albus didn't answer her and ran directly to Gellert's room.
Gellert sat on his bed when he looked up at Albus. They stared at each other for a minute, just looking directly into each other's eyes. 'I know you are probably furious at me Albus, but don't worry, I'm leaving today. I won't impose a threat to your family anymore.' Gellert said finally.
'No! I don't want you to leave!' Albus cried and sat near Gellert on his bed.
'Boys, can you tell me what happened?' Bathilda came to the room, she gave the boys a lot of freedom but something clearly happened.
Albus and Gellert stared at each other again. After a moment Albus answered, 'Ariana passed away,' he whispered and looked at the floor, a tear falling from his eye.
Bathilda grabbed Albus for a hug. 'Albus, I'm so sorry. Is there anything I can do to help?'
'Can you go and check if Aberforth is fine, please?' He asked politely. Bathilda knew the brothers didn't get along very well.
'Of course, I'll go there right away, It's horrible how tragedy doesn't leave you kids alone. I'll help you with the funeral arrangements, like I did with your mother.' Bathilda said and put her hand on Albus' shoulder. Albus nodded in response. 'Gellert, it's really not polite of you to leave before the funeral.' She scolded her nephew before she left the room. The boys waited in silence until they heard Bathilda leaving the house.
'You heard your aunt. It is not polite to leave before the funeral, you are staying.' Albus told Gellert.
'Why? I casted Crucio on your brother, and your sister is dead becuase of me, you won't hear from me again. Don't worry.' Gellert looked down.
'Her death is my fault. I took a vow not to fight you and I broke it. This is my punishment. I should have never fought you in the first place.' Albus lowered his head, tears falling from his eyes.
'I crossed the line. I attacked your brother. I'm sorry.' Gellert told Albus.
'I'm sorry too, please promise me we would never do it again. I can't lose another person I love.' Albus said and grabbed gellert's hand and sat next to him on the bed.
'You still want to be by my side? You are choosing me over your brother?' Gellert asked, shocked.
'We are closer than brothers, we are more than brothers,' Albus answered and kissed Gellert's hand.
'I'm glad that you're not mad at me,' Gellert told him.
'Being mad at you won't change the fact that Ariana is dead,' Albus said, lowering his head, tears keep falling from his eyes.
'Well, she is not completely dead,' Gellert said silently.
'What?! Gellert, what did you do?' Albus asked with wide eyes.
'I didn't do anything,' Gellert answered and threw his hands up in surrender. Albus still looked at him in suspicion. Gellert sighed and took out the pendant. 'Her Obscurus got inside. Part of her is still here, with us, with you.' Gellert took Albus' hand and put the pendant there. Albus put the pendant near his heart, some tears fell on it and the necklace started glowing. Gellert smiled a little sadly, 'We can create a child with the Obscurus. Our child.' he said and put his hand on the pendant too.
'We're going to have a child together,' Albus said quietly with a small smile.
'It'll be more than your child, it will also be your brother because it has Ariana's Obscurus in it, she will always be there, she isn't completely gone.' Gellert added.
'You're not leaving until the end of the funeral, and after that I'll go with you. I don't want to be here on my birthday, I have too many memories from my family here.' Albus said sadly and cried, he put his head on Gellert's shoulder.
'I know you have just lost your family, and nothing will ever be the same but we will build a new family. Our own. I won't leave you, we promised that to each other.' Gellert told him and embraced him.
'Yes, I won't leave you either. Great, now we sound like a married couple.' Albus chuckled.
'A married couple with a child.' Gellert also chuckled. They didn't leave each other and sat together hugging until they fell asleep.
The day of the funeral came quickly. Albus slept in Gellert's room last night so he didn't see Aberforth yet. The funeral was very small, with only Albus, Aberforth, Gellert and Bathilda. When Aberforth saw the two boys together he was furious. 'Why is he here?! He killed her!' Aberforth yelled at them. Albus squeezed Gellert's hand, signalling him not to do anything. Gellert nodded at him but still looked mad.
'Aberforth, I'm sure it's not true. My nephew couldn't do such a thing, you're just grieving.' Bathilda said calmly, trying to calm him down.
'We're leaving after the funeral, don't worry.' Albus told his brother.
'Are you bloody serious?! How are you able to choose the bastard who killed your sister over me?! Over your family?!' Aberforth shouted at him.
'What family? Mum is dead, Ariana is dead, and don't pretend you and I were close,' Albus answered coldly, trying with all of his might to stay calm.
'No, we weren't close because you never cared about this family!' Aberforth yelled and punched Albus in the nose. It was clear that his nose was broken. Albus' glasses were broken too. Gellert planned to draw his wand but the look in Albus' eyes restrained him and he just ran towards Albus.
'Thanks, let's just go from here.' Albus told Gellert who gently grabbed his head to look at his nose.
'Alright,' Gellert answered. The two boys went to Bathilda's house. When they came back, Gellert drew his wand.
'Don't,' Albus said and grabbed Gellert's hand so he couldn't cast the healing spell.
'You don't want me to heal you?' Gellert asked his partner.
'No, I deserve it.' Albus answered.
'You do not deserve this kind of treatment from anyone, especially not from your brother, I'm glad you chose to come with me, your family held you back long enough. Now you can reach your true potential.' Gellert told Albus and hugged. Then he looked at the glasses. 'Can I at least fix your glasses?' He asked Albus who nodded in response. Gellert casted a spell and the glasses were fixed, he put the glasses on Albus' face gently, careful not to touch his broken nose.
'I'll summon my things and we'll leave, go pack.' Albus told him and Gellert nodded and went to his room. Albus wiped the blood from his face. He felt so guilty, that's why he didn't want to heal his nose with a spell. Aberforth had been right to be so angry with Albus. Albus knew his reasoning was right, that the responsible thing was to stay there and try to mend his relationship with his brother. But he just couldn't, and Gellert meant so much to him and he knew they would do extraordinary things together, after all, everything they did was for the greater good.
The boys waited for Bathilda to come back, they needed her to create a portkey for them, Gellert asked her yesterday but Albus distrapted her. The portkey was an old cracked bowl Bathilda found.
'Bathilda, can you please make sure Aberforth will go back to Hogwarts?' Albus asked her. Gellert sighed, sometimes he really didn't understand why Albus worried so much for others.
'Yes, of course, I'll take care of him.' Bathilda answered warmly.
'Ready for a new beginning?' Gellert asked Albus.
'I'm ready.' Albus answered and they both grabbed the bowl and ported away from Godric's Hollow.
Author Note: I know Gellert is more restrained in the fanfic then he actually is, but I do think he respects Albus enough to be like that, especially after Albus chose him over Aberforth, he is smart enough to know that if he'll do something else radical Albus might leave at this point.
I know it said in the book that Elphias was at the funeral, but in this fanfic Albus stayed with Gellert until the funeral, so he couldn't send the letter to Elphias, I'll mention him in the next chapter.
Another thing I changed was that Aberforth blamed Gellert, not Albus, he also thinks it Albus' fault, but here Gellert came to the funeral, so he targeted him and not his brother like what happened in canon.