(Hogwarts, November 2028)

Mia couldn't sleep, yet again. She knew that she probably wouldn't sleep that much, if her parents were anything to go by, but it was different this time. There was an eerie feeling.

She glanced out her window at the stars, but this did not bring her comfort as it normally did.

"We see the world differently, time-lords. We see everything that was, everything that is, and everything that could be. And we have to deal with that."

She remembered her father telling her that. Perhaps this dread was a sense that came with her anatomy.

A pebble hit her window. She ran to it and opened it.

"Mia!"

"Rose! What're you doing here?"

"Need your help!" the redhead called back. "Are you registered yet?"

"Animagus?"

"Yeah!"

"Yes!"

"Then come on!"

Mia closed the window again, dressing quickly, grabbing her diary and sonic screwdriver and running outside.

Luckily, she didn't run into anyone except the Fat Friar, who whispered, "You should be in bed, young lady."

"You're not a true Gryffindor until you've broken out a few times," Mia whispered back.

The ghost chuckled.

She managed to sonic the door open and slide outside. A vixen was waiting for her.

"So you want me to run all the way somewhere with you."

The fox shook its head.

"All right then," Mia said, stowing her diary and the sonic screwdriver into her pocket and transforming into a pony.

The vixen ran off immediately, and Mia followed, horribly aware of the pounding sound of her hooves, but she was outside, at least.

Rose reached the gates first, squeezing through them easily in her form. Mia changed back to her human form, pulled the screwdriver quickly out of her pocket and pointing it at the gates. They opened.

She locked them again.

"They've just gotten bad news," Rose, who had transformed back into a human, explained. "I wouldn't want to intrude." She disapparated.

There were noises from under her feet, and River was sitting on the seat – or what had been a seat; extension charm, Mia guessed – closest to the steps that led up to the console, her back to Mia.

She did not look around as Mia climbed the stairs to the console room.

"What's wrong?" Mia asked, startled, sitting next to her mother, whose eyes were filled with tears.

"Sarah-Jane's dead," River murmured. "Luke just phoned."

Mia hugged her. "I'm sorry."

"You didn't know her," River said. "I only met her once. At Torchwood. She was wonderful."

"Of course she was wonderful. Everyone's always wonderful."

Mia had not noticed the absence of the noises. The Doctor had joined them.

Mia got to her feet and hugged him instead.

"I hate it," he muttered. "Everyone around you dies and there's nothing you can do about it – and you're still alive, left on your own."

"You've got me," Mia murmured reassuringly. "You've got mum."

"For how long?"

"For as long as you need us," said River quietly.

Mia nodded.

"We'd better go and visit them," River murmured.

"Where's my room?" Mia asked.

"I don't think it's moved since you were last in it," the Doctor said.

"She likes me!" Mia exclaimed, in an attempt to lighten the mood. River half-laughed.

Mia headed towards her room. Her father was right, it was in the same place. She picked out an outfit for herself and changed.

"We're here," the Doctor called.

Mia left her room, closing the door with a sigh, and following her parents out of the TARDIS.

Luke was waiting for them. He looked terrible, wearing a t-shirt and a scarf, his eyes red and puffy.

Mia hugged him.

"Hello," she murmured. "I'm Mia. I'm sorry to hear about Sarah-Jane, I wish I could've met her. I know I would've liked her."

"Hi," Luke replied quietly. "I know she would've liked you, too. She would've been pleased to know the Doctor had a family."

Mia nodded, waking slowly into the house while her parents hugged Luke.

A girl, with light brown hair, who did not look much younger than Mia, was standing in the hallway.

"Who are you?" she asked, her lip trembling. She looked distraught, which was understandable.

"Mia Song," Mia replied. "I'm the Doctor's daughter."

"Sarah-Jane's friend?"

"Yes, he was."

"I'm Sky," the girl said, as Luke, the Doctor and River entered the house.

"Pleased to meet you, Sky," said River.

"Who are you?" Sky asked, looking between the two of them.

"River Song."

"The Doctor."

"You were Sarah-Jane's friend, weren't you?" Sky asked.

"Yes."

"She said that killing was wrong," Sky muttered to herself, as the five of them climbed the stairs to the attic. "But she's dead. Is that not wrong?"

She looked up at Luke questioningly. He hugged her tightly.

"Mum was happy when she died, remember, Sky? She was with us, and she said that she was so lucky to have a family."

Sky nodded, tears starting to roll down her cheeks. "I remember."

"When's the funeral?" River asked, after a pause.

"Tomorrow," Luke sniffed.

"Hi guys, the door was open so – oh"

"I told you that was the TARDIS."

"It looked different!"

Luke smiled, it seemed, in spite of himself. "Doctor, River, Mia. Meet Clani."

"I wish you'd stop calling us that."

"Clyde and Rani, then," Luke amended.

"Who are you two?" Clyde asked.

River held out her hand. "River Song, his wife." She nodded her head towards the Doctor.

"Why didn't you tell us you were married?" Rani asked, shaking River's hand.

"I wasn't," the Doctor said.

"I'm Mia Song," Mia said, with a small smile. "Their daughter."

"And that you had a daughter?" Clyde demanded.

"I met you lot ages ago," the Doctor said. "None of this had happened to me."

"How old are you now?" Rani asked curiously.

"Nine hundred and twelve."

"How old were you when you met us?"

"When I was 'dead'? Nine hundred and eight."

"So in four years you had a teenage daughter? How does that work then?"

"Time travel," said Mia wearily, sitting down.

"Can we stay the night?" River asked.

"Of course," said Luke.

"I'll go and move the TARDIS," River offered, leaving when no one raised any objections.

A few moments later, it materialised in the attic. River stepped out.

"It looks different," Luke said.

"It is different. Look inside."

"I prefer it this way. It looks … warmer."

"Do you mind if we stay too?" Rani queried. "I just cleared it with my parents."

"Of course I don't mind," Luke murmured. "It's great to see you all."

"I'll go and make tea," said Mia. "Does anyone want any?"

"Can I come and help you?" Sky asked.

"Sure," Mia smiled, walking downstairs to the kitchen, Sky following.

"How long have you known Sarah-Jane, then?" Mia asked, pouring water into a kettle while Sky took the teabags out.

"A month," the girl replied sadly. "She taught me so much. I'm going to miss her."

"At least you've got Luke," Mia said. "He sounds like the best big brother anyone could want."

"He is," Sky murmured.

There was a pause in conversation. Mia took the milk out of the fridge and found seven mugs in the press, setting them on the table.

"He's going to leave, isn't he?" Sky asked. "Where would I go then?"

"What do you mean?"

"He goes to university," Sky said. "He doesn't live here."

"I'm sure he won't leave you," Mia said. "You're his sister."

Sky nodded, brightening the slightest bit.

I love Sky so much. Haters gonna hate. She will be okay; she'll find somewhere to stay.