(A/N: This is an AU where Sirius, Lupin and Tonks are still alive.)
Voldemort had raised his wand. His head was still tilted to one side, like a curious child, wondering what would happen if he proceeded. Harry looked back into the red eyes, and wanted it to happen now, quickly, while he could still stand, before he lost control, before he betrayed fear—
Harry Potter and the Deathly Hallows
BOOM! There was a flash of bright purple light, and a baby with tufts of silvery-blue hair appeared right between Harry and Voldemort. She was wearing all black. Harry and all the Death Eaters were very surprised. The baby giggled at everyone's astonished faces. Harry looked around. Where had the baby come from? Harry looked up at all the Death Eaters' expressions. Bellatrix looked, for some reason, exasperated. Voldemort looked…scared? Lucius looked annoyed. Narcissa looked resigned, as if weird things like this happened every day. She sighed. Most of the other Death Eaters looked bewildered. Harry was the first to break the silence.
"We should get her to a safe place," he muttered. "There's a war going on here!" The baby started crying VERY loudly.
"Oh. My. God." said Bellatrix. "Not NOW!" She picked up the baby,
Harry stared at Bellatrix and the baby in shock. Absolute shock.
"Why don't you go with Cissy for a bit? We've got something important going on right now," said Bellatrix calmly.
Harry stared at Bellatrix with even more shock. He shook his head. "Who are you, and what have you done with Bellatrix Lestrange?"
Bellatrix sighed. "Potter…just go back to your friends for an hour. We will sort this out. We'll take the baby to Malfoy Manor until the battle is over." She looked completely exhausted.
"Er…"
"DO IT BOY, OTHERWISE I'LL CRUCIO YOU!"
Convinced that this definitely was still Bellatrix, he jogged back through the woods towards Ron, Hermione, Ginny, Sirius, Remus, Tonks, and countless others who were probably wondering where the Chosen One had suddenly disappeared to, casting a quick Diffindo at the ropes binding Hagrid, who followed him.
"Guys! You won't believe what's going on! Voldemort was about to kill me -"
"HARRY JAMES POTTER!" everyone yelled at once.
"Alright, I'm sorry I didn't tell you first, but-"
"Harry, that is NOT the point!" said Ginny loudly, sounding remarkably like Mrs. Weasley.
"Okay, but wait for it! So this baby with blue hair randomly appears right between me and Voldemort and starts crying! And then Bellatrix Lestrange picks the baby up and says something like "Go with Cissy." And all the while, Voldemort's looking scared, Narcissa Malfoy's looking like she's got to put up with this every day, and Lucius Malfoy is just looking annoyed. What even was all that about? And then Bellatrix says they're going to take her to Malfoy Manor!"
"HARRY, WERE YOU NOT THINKING? THEY'RE DEATH EATERS! DO YOU TRUST THEM?" said Hermione, shocked at her friend's lack of intelligence.
"Oh no!" Harry's brain caught up with him. "Okay, I'm going to Malfoy Manor! It's my fault! Who's coming with me? We've got to rescue the baby!"
Sirius, Tonks, Remus, Ron, Hermione and Ginny all volunteered to go with him. "Alright, everyone. Disapparate at the count of three. Ginny, you can go with Hermione. Okay, is everyone ready? One..two..THREE!" They all disappeared with a very, very loud 'crack!'
They all appeared outside Malfoy Manor, but the issue was that they'd all visualized the same spot.
"Oof!" said Sirius. "Nymphadora, get off me!"
"DON'T call me Nymphadora!" said Tonks. "And I would, but Ginny's on top of me."
"Well, what else am I supposed to call you? I can't call you Lupin, can I? That'd be too confusing!" retorted Sirius.
"Everyone calls me Tonks anyways," she said. "I guess they're just used to it, Uncle Sirus!"
"Don't call me that! It makes me sound old! Okay, I'll call you Tonks! Calm down, cuz!" he said, going red.
"Sorry!" came Hermione's muffled voice from under Harry. "I think we all thought of the same place."
"Gosh, Ron. You're heavy!" said Harry, sounding squashed.
"Padfoot!" groaned Remus. "Why did everyone have to fall on me?"
Sirius grinned. "Sorry, Moony."
They began the complicated procedure of attempting to stand without trampling anyone. It took a good three minutes. Once everyone was up and standing, they all burst out laughing. Until Remus interrupted them. "Uh, guys? I thought we were going to go and rescue a baby?"
"Right!" said everyone hastily.
"Wait a minute. The gate's locked. Alohomora! Oh, never mind that. Everyone, stand back! Bombarda Maxima!" said Hermione.
The gates burst open, and they all ran through to the entrance.
"Right," said Harry. "Tonks, Remus, Sirius: stay on guard outside. Make sure no one gets in. Ron, you and I will scout ahead under the invisibility cloak. Ginny, Hermione, stay with the others outside until I send you a patronus. Then you two have to come in, help get the baby back, disapparate her to the Burrow, and get someone, maybe an underage student to stay with her there. When I send up red sparks, everyone except those two gets back to Hogwarts. Hermione, Ginny, once you're done, come back as well."
Everyone nodded, and the plan went into action. Harry and Ron ducked under the Invisibility Cloak and crept towards the main doors.
"Ron!" hissed Harry.
"What? Hey, do you think there'll be spells on the door?"
"Not just that. Why are you so tall? We'll be seen."
"Harry! There's no one there."
"Right, I forgot," said Harry. He tapped on the doors. Surprisingly, they creaked open. What if someone had been there already? "Wands out." They both held their wands at the ready, and crept into the living room.
At first glance, it looked like no one was there. Then they heard a sniffling noise. Cautiously, they removed the Cloak and walked towards the baby, who was in a corner of the room.
"Mama?" said the girl.
"No," said Harry. "I'm not your mum. But we'll get you back in no time."
The girl frowned at Harry, as if she was trying to remember something. Then she brightened visibly.
"Of course!" she said suddenly. "You're my cousin Harry, aren't you?"
Harry and Ron blinked at this sudden progress in speech.
"Everyone underestimates me!" she sniffed.
"Err…." said Harry. "Would you happen to know how we're cousins?"
"Yeah, don't you?" she said sassily. "Okay, so your godfather, Sirius Black, is actually related to your dad. And my mum is Uncle Sirius' cousin. So…"
And then it dawned on Harry. "Oh. My. Gosh! You're Bellatrix Lestrange's daughter!" He backed away. "This is your home!"
"Yes, I am, and it is. Is that a problem? I'm not going to hurt you? I don't care what my parents did!" said the girl coldly. "Why don't you take a seat? It's not a trap!" she said impatiently.
"Er, sure," said Ron.
"So…" said Harry. "How are you so good at talking? You're like, what? 5 months old?"
"Two," she huffed. Harry and Ron's jaws dropped.
Ron was the first to recover. "She sounds like Hermione. But I doubt that even Hermione-"
A silvery otter flew through the door and spoke with Hermione's voice, "Ron, Harry, what's going on? Have you been captured? It's been over fifteen minutes."
Ron facepalmed. "We forgot to send her a patronus! One second." Ron conjured his dog and told it, "Tell Hermione and Ginny to come in. Everything's fine. Nobody's here"
Outside, Ginny and Hermione were looking at each other in confusion. If everything was alright, why had they taken so long? The girls carefully opened the door and walked inside. To their surprise, Harry and Ron were sitting on the sofa with the baby and…having a conversation with her.
"Hey, you can't blame me! I was so bored! And…the house is a bit scary without anyone here," said the girl.
Ron grinned. "Well, you did save Harry's life by turning up when you did. I'm not gonna blame you."
"How many times do you think daddy's tried to kill him by now? Five? Six?" said the baby. "Wait. Who's that?" She pointed at Ginny and Hermione.
"Oh, that's just our friends. Ginny, Hermione, this is…" said Harry.
"Delphini," she filled in.
"Er..nice to meet you, Delphini," said Hermione.
"Wait, are you a Black? Delphini's a Black name." said Ginny.
"Partially," said Delphini.
"So she's your cousin, then!" said Hermione.
"Oh, you've missed a lot," grinned Ron.
"Shouldn't we get going?" asked Ginny. "You know, we don't have very long-"
"Oh, we've solved that problem," said Harry. "You see, this is her home."
"WHAT?" said Ginny and Hermione loudly.
"Yeah," said Delphini, unimpressed.
Hermione was putting things together. "What you said earlier about your dad - you're Voldemort's daughter!"
"NO WAY!" said Harry, Ron and Ginny together.
"Yes way," said Delphini. "Because I am."
Ron nearly fainted. Harry grinned. "Hey, Delphini, you know how you said that you wanted to meet the rest of your family? Well, I've brought some of them with me. I'll call them." Harry cast his patronus and sent it to Sirius, Tonks and Remus.
A minute later, the three of them entered to…a perfect tea party.
"Er…guys," said Remus. "Care to explain?"
"Delphini, these are your cousins Nymphadora ("Don't call me Nymphadora!" she interjected) Tonks - err, Lupin, Remus Lupin and-" started Harry.
"SIRIUS BLACK!" said Delphini. "It's really you, Uncle! I've heard so much about you from mum!"
"Someone's got a favorite," muttered Tonks. She glanced at Delphini's hair. "Hey! You're a metamorphmagus too!"
"Yes! Someone recognizes me for what I'm worth. It is I, the Great Sirius Black, king of the world-" he was cut off as Remus pushed him over.
"Ow! Moony!"
"Padfoot, set a good example. She's your niece!" said Remus jokingly.
Delphini laughed.
So Ron made everyone tea (except Delphini) and they kept talking for another hour until…
"WHAT ON EARTH IS GOING ON IN HERE?" It was Lucius Malfoy.
"Okay everyone, on three! One, two, THREE!" There was a loud crack and they all disappeared.
Lucius blinked.
"Hi Uncle!" said Delphini brightly.
The End!