It all started on May 20th 1979. Sybill Trelawney made a prediction to Albus Percival Wulfric Brian Dumbledore inside Hog's Head. "The one with the power to vanquish the Dark Lord approaches ... Born to those who have thrice defied him, born as the seventh month dies ... And the Dark Lord will mark him as his equal, but he will have power the Dark Lord knows not ... And either must die at the hand of the other for neither can live while the other survives ... The one with the power to vanquish the Dark Lord will be born as the seventh month dies.. And a witch who has the power to lead one to defeat the other will be born 9 months later...his cousin."
One of Voldemort's spies (Severus Snape) heard part of the prediction and told his master.
On July 31st 1980, Harry James Potter was born to Lily Evans and James Potter, but Neville Longbottom was born the day before to Alice Black and Frank Longbottom. As predicted, on April 11th 1981, Megan Lucille Lily Potter Black was born to Sirius Black, Alice's brother, and Lucinda Potter, James' younger sister.
October 31st of that year started out as a normal day…until it changed the wizarding world.
"Good morning my angels." Sirius said, walking up behind his wife, who was standing over their 6 months old daughter's crib. He wrapped his arms around her waist and kissed her neck.
"What are your plans for today?" Lucinda asked. Today was the day that they were officially going into hiding with the Potters, although they had already been spending most of their time there.
"I'm going to put everything in the Gringott's vault, like you asked, pick up a few supplies and meet you later on tonight." He said, pausing every once in a while to kiss her. "And you?" he asked.
"I need to go see your sister and then I'm going straight into hiding." It showed that neither of them wanted to hide, but Dumbledore had told them it would be best and they both wanted to make sure they took every precaution to ensure their daughter's safety.
"I'll watch her while you get ready." He said, picking his little girl up into his arms and rocking her around, singing a lullaby.
About an hour later, everyone was ready to leave. The house had been ridden of everything valuable, only furniture remained. Sirius and Lucy kissed and said they loved each other before going their separate ways.
"Lucy! Come in, come in." Alice urged when she saw her sister-in-law on her front porch. "Frank's off hunting down more death eaters, Sirius is doing the same I trust?" she asked, leading her into the living room where Neville was playing on the ground.
"Actually, he's putting our things in order. I really think you should reconsider Dumbledore's proposal. The prophecy can be talking about Neville just as easily as it can be talking about Harry. Don't be stubborn about this Alice, please." Lucy begged.
"We were thinking of sending Neville off with Frank's mother, Augusta, or something. He can't let all those death eaters walk free and I can't be without him. Don't worry about us; just take care of that little angel." She urged.
The two women and their babies spent the next few hours sipping tea and pretending everything was okay. Lucy left with a heavy heart. They were all so used to seeing danger around every corner that they'd almost forgotten what it was like to be carefree and safe. "I'll see you soon." They both promised before Lucy went to leave and ran into Minerva McGonagall.
"Where are you off to?" the teacher asked her old student.
"We're taking Albus' advice." She said.
"You're going into hiding with your brother?" she inquired.
"Might as well be locked up with someone you like." She said with a slight laugh. "You're here for the order's business?" she asked longingly, remembering when she was still an active member of it.
"You'll be back soon enough." She promised before they parted.
When she arrived at the house in Godric's Hollow, her brother let her in, taking his niece over to his son's crib.
They were in the living room, with James amusing the kids with magical smoke when they heard him outside. As soon as they realized what was going on, James told the women to go protect the children while he fought him off for as long as he could. They locked themselves in the bedroom and held their children close. When Voldemort arrived, he asked them to step aside but they refused. So, he killed the women before attempting to do the same to the kids. He pronounced "Avada Kedavra" and saw the flash of green lights but the crying didn't stop. Instead, it backfired and he found himself fading into nothingness. He fled before someone came looking for him, leaving the infants in the crib.
Barely an hour later, Frank and Alice Longbottom showed up. Alice brought Harry and Meg to St. Mungo's while Frank waited for Sirius and Hagrid to show up. He directed them to the hospital.
"Her name is Megan Black, my sister Alice brought her in along with my godson, Harry…" Sirius tried to explain his predicament to the healer, who was trying to silence him as he babbled.
"Right this way, Mr. Black." She said with an apologetic smile.
"Thank you." He said before following her.
She led him past rooms with more of Voldemort's victims, but most hadn't been as lucky as the two babies that slept. "Alice, how is…Baby!" Sirius exclaimed when he saw his daughter in the plastic bassinet. Harry was in another one right beside her.
He held Meg and rocked her back to sleep while talking with his sister about what had happened, how the fidelius charm had been breached. "Alice, can you watch her…them until I get back. There's someone I need to find." He asked of his sister.
"Of course." She assured him.
"Daddy loves you." He told his baby girl before leaving St. Mungo's, wanting revenge. He crossed Hagrid on his way out, offering to take Harry, since he was his godfather.