Platform Nine and Three-Quarters

"Harry, Mia." Having chosen their wands, the two heard a knock on the window and turned to see Hagrid. When the children looked at him, he held up what he had brought: a white owl and a pure black cat.

"Birthday presents."

The children ran out excitedly and crowded around Hagrid. The owl was Harry's, and the black cat was Mia's.

"Hagrid, how did you know I like cats?" Mia hadn't expected a present too. Ever since they had entered the wizarding world, everyone's attention had automatically focused on Harry, the Chosen One, while she was merely the Chosen One's sister, mentioned in passing. Mia didn't mind, though; she even thought all that attention was bound to put some pressure on Harry.

But Hagrid's gesture told the siblings clearly that, in his eyes, they were both children he cared for. Mia thought Hagrid really was a good person: from taking them away from the Dursleys to giving them their first birthday cake, and now this belated birthday present, it was the first kindness the two little ones had received upon arriving in an unfamiliar world.

"Thank you, Hagrid." Harry and Mia hugged Hagrid's legs.

Now that the siblings had come to the wizarding world, they needed to know some of the truth. The street was no place for a conversation, so Hagrid took them to a restaurant and told them the truth about Voldemort and Lily and James's deaths.

"Is he dead?"

"I don't think so. He's still alive, but he just doesn't have the strength to come back. You must have weakened him badly that night. That's why you're so famous."

The train station

Hagrid left after taking the siblings to the station and handing them their tickets; he still had to deliver the Philosopher's Stone to Dumbledore.

"Platform Nine and Three-Quarters? There's no such platform, is there...?" Harry glanced at the information on the ticket and felt something was wrong. He was just about to look up and ask Hagrid, but Hagrid had vanished.

"Mia? What do we do?" Harry instinctively turned to the most reliable person at his side for help.

"Let's go to platforms nine and ten first. There'll be a way." Mia believed things would work themselves out.

The two little figures pushed their luggage, piled almost higher than they were, as they searched for the platform. Mia secretly vowed to learn the Undetectable Extension Charm. This was too much work.

When they reached platform nine, Harry looked all around but couldn't find Platform Nine and Three-Quarters. He was just about to ask a station attendant when Mia tugged at him.

"So many Muggles every year. Platform Nine and Three-Quarters, that way!" Molly held her daughter's hand and ushered her four sons along.

"Let's go over." Mia pulled Harry along behind them and watched Percy and the Weasley Twins pass through a stone pillar and disappear.

"Wow." Harry's eyes widened in disbelief.

"Hello, ma'am. Is Platform Nine and Three-Quarters here?" Mia walked up to Molly and carefully tugged at her sleeve.

Molly looked down at a face that was the very image of Lily's. She crouched to meet Mia's eyes and gently stroked her face.

"Dear, tell me, what's your name?"

"Mia Potter, ma'am." Mia obediently let Molly stroke her face.

"Mia." Seeing this unfamiliar woman, Harry hurried over as well.

"You're Harry, aren't you?" Molly looked at Harry. Ginny's eyes widened when she heard the name, and she covered her mouth.

"Yes." Harry was a little confused.

"Good children, good children. Just go through there. Don't be afraid. These are my children, Ron and Ginny. Ron's starting school this year too." Molly pulled her children over and had Ron demonstrate first.

"Thank you, ma'am." It was getting late. If they didn't get in before it was time, they wouldn't be able to get in at all, so Molly didn't say much more and hurried the two children through.

Mia pushed her luggage through first, and Harry quickly followed. When they opened their eyes, there was a train in front of them with 5972 written on it. They looked up to see the sign: Platform Nine and Three-Quarters, Hogwarts Express.

The two hurried aboard, put their luggage away, and found a compartment to sit in. Then a red-haired boy pushed the door open. It was Ron, Mrs. Weasley's son, whom they had just seen.

"Sorry, all the other compartments are full. Can I sit here?" Ron asked, poking his head in.

"Of course." Harry didn't mind. Mia was asleep.

"My God, are you really Harry Potter?" Ron asked Harry excitedly as soon as he sat down.

"Yes." Harry had grown used to being asked.

"I'm Ron Weasley. Can I see your scar?"

"Of course." Harry swept his hair aside.

"Wicked."

They were talking rather loudly, and Mia woke up. She opened her eyes and saw the person who had suddenly appeared in the compartment.

"?"

"Sorry we woke you, Mia. This is Ron Weasley. Ron, this is my sister, Mia Potter." Harry realized they had disturbed his sister and felt a little apologetic. Mia shook her head.

"Hello, Mia. I'm Ron."

"Hello." Mia nodded. She wasn't much of a social person.

An awkward silence fell. Just then, a woman came past pushing a snack trolley. Harry made a sweeping gesture and decided to have one of everything, but Mia stopped him.

"If you buy that much, can you finish it? Just pick what you like."

Though they didn't buy everything, they still bought quite a lot. The three of them ate snacks and chatted, and then a rat suddenly appeared.

"Ah!" Mia was a little afraid of rats. Luna pinned the rat down with one paw.

"Scabbers! Sorry, this is my pet, Scabbers." Ron hurriedly rescued his rat.

"Scabbers? Luna, come back." Holding her black cat in her arms, Mia looked at Scabbers and sifted through her hazy memories. Animagus, Peter.

"What's wrong? Are you all right, Mia?" Harry knew his sister was most afraid of rats and bugs, and seeing that she wasn't reacting much, he was a little worried.

"It's nothing." Mia shook her head. It wasn't time yet.

Seeing the conversation fall silent once again, Ron hurriedly spoke up. "Let me show you some magic."

When both siblings looked at him, Ron picked up his wand and pointed it at Scabbers. Just then, a cute girl with curly hair suddenly appeared.

"Have you seen a toad? Are you doing magic? Can I watch?"

"Of course. Sunshine, daisies, butter mellow, turn this stupid, fat rat yellow." The wand flashed, and Scabbers ran away. Well, Ron realized his two older brothers had tricked him again.

Mia couldn't help laughing.

"Are you sure that's a real spell? It doesn't look very good. I've tried a few simple spells myself, and they've been very useful. For example, Reparo."

Hermione took out her wand and pointed it at Harry's glasses. They were quickly repaired.

Hermione. Mia looked at the girl in front of her, her interest piqued.

"Hello, I'm Mia Potter. Can we be friends?" Mia said to Hermione, taking the initiative.

"Of course. I'm Hermione Granger. Nice to meet you."