The last hours of Lyra's life before she married Charlie went quickly. By Muggle rules, they weren't to see each other the night before the wedding and while Lyra and Charlie weren't bothered by this, it was a rule Arthur was enthusiastic about.
So Lyra spent the day with Sirius, Remus, Tonks and Teddy, Hermione and Ron, and Dudley. They spent the day in Diagon Alley, where Dudley was fascinated by the colour of the street, the bustling people, the shops selling things that he couldn't imagine.
So day passed quickly, night, soon came.
The day of Lyra's bonding was approaching with ever increasing speed as though time itself wished for the union, Sirius pondered after Lyra and Dudley had both gone to bed. He sat for a while, watching the ebbing flames and thinking of his goddaughter. He remembered the day he found out she existed, the day he was asked to be a godfather. The day she was born and suddenly there was someone in his life that was more important than any other soul walking the planet. The blissful fifteen months they spent together, him and his girl, before the world collapsed. One of his best friends betrayed the other, James and Lily died at Voldemort's hands and his darling Lyra became a hero and an orphan in a space of mere minutes. Remus hated him. Sirius himself locked up with monsters feasting on the memories he treasured of Lyra, Lily, James and Remus.
Then he escaped. Spent a year on the run before being captured and freed again before flying off on a hippogriff that Lyra and her friend had saved from the axe with seconds to spare, just like they had him. He spent a year eating rats and leftover food just so he could be by her side. Two months in this house when everything inside detested him.
And then he was freed.
Kreacher started working with Sirius rather than against him and suddenly the house became a home. A home he shared with Lyra. They had two years together before Lyra was off on a mission he couldn't bear thinking of even now. But she had done it, she had killed Voldemort, she was free, and the girl he could still vividly remember as a baby who fitted into his cradled arms as perfectly as a bludger did in its box was now a woman on the eve of her wedding day.
Night had fallen. It was time. Lyra had a future now and her life would change forever in the next twenty four hours. But he was still there. Sirius was still alive and he was going to be a part of her future because he owed her this much after missing out on so many years. Everyone who deserved to be a part of her life would be there tomorrow. Dudley too. James and Lily, he knew they wouldn't stay away.