Their voices could be heard in the hallway for any Hogwarts student to hear who happened to be nearby. In a small alcove off to the side of the Charms corridor two curly-headed, dirty blonde twins argued, both of their house colors hidden away from those who passed by.

"Mum was super vague about the details of how they got together, why else would she be, unless it was because we, (the brother motioning between them), are the reason that they are together. Plus this information would be ace for GCM class."

"I can not believe that I let you talk me into this. If mum finds out we even broke into her home office, especially since she is against using house-elf magic that way, we are going to end up dead, or worse expelled! Mum won't even let us come to school if we mess this up."

"Seriously you need to get your priorities straight. Dad would not let her do anything of the sort. Especially since this could potentially change the course of not just our lives, but Mum's, Dad's, Scorp's, and Lyra's, not to mention our friends and family."

The sister, Calí, cast a simple Notice-Me-Not on her and her brother's robes. They both melted into the crowded hallway of students. Caelum grabbed Calí's arm as he followed a familiar sight of bushy curls into an altogether too familiar Transfiguration classroom. He hoped that he could observe his parents, and complete his self imposed mission before everything went to pot.

It didn't take long for both twins to realize that they had in fact arrived at the correct time. This was obviously the redo of their parents' 7th year. Growing up they heard that the war was horrible. That the war was something to learn from, and learning from it would ensure that history did not repeat itself. Little by little, as they got older, they heard more than the bits and pieces they were allowed. They knew it was bad. They knew it was very bad.

They had finally managed to get a hold of a current copy of Hogwarts, A History, as their father had attempted to buy them, all of them, for several years. They knew he was only allowed to redo his 7th year in school as part of a probationary period to avoid serving time in Azkaban, and that their mother had been awarded the Order of Merlin, second class, for her efforts during the war.

About 6 months after the war ended, the school finally reopened, students who were unable to finish their last year of school, or wanted to take the advanced portion of their 7th year were invited to come back to take a few intensive study lessons to be able to sit their NEWTS at graduation time.

"We are going to have to get ole' McGonagall in on this, or we won't be able to last more than an hour." the brother hinted.

"OK, ok, don't get your knickers in a twist." the sister replied.

Most of the students had already sat down, while Headmistress McGonagall was preparing at the front of the room. Neither twin was exactly sure how they were going to pull this off. They took a seat towards the back corner of the classroom.

Caelum grabbed a spare bit of parchment that he had started keeping on his person. His mother's swotty-ness had been passed on to him for sure. He hastily scribbled a note. He quickly went to the front of the room, he waited until the Scottish headmistress had acknowledged his presence, with a quirk of her head, he handed her the note and practically ran back to his seat. He made it back just in time to see McGonagall's expression as she read the note.

It would be extremely beneficial if we could have a private meeting. I'm sure you don't know who we are, but that we are ...different. Let us get through this lesson, help if possible, we will explain all in time.

Yours Truly CM & CM

Caelum had no idea why he actually signed their initials but he figured when dealing with the Gryffindor of all Gryffindors, except maybe Albus Dumbledore, which he never had the pleasure to meet, that maybe just maybe, honesty would be the best policy.

McGonagall made eye contact for the briefest of moments and gave an insignificant nod of her head in agreement. It's not like the woman wouldn't figure out who they were in the next two hours. They both had the exact type of curly hair that their mother has, and a lightened version of her mocha skin. That they had the EXACT steely grey-blue eyes of their father, and a shade of blonde only a few hues darker than him as well. But if you didn't recognize their eyes, then you could take a guess with their hairstyle. McGonagall was a smart old bird, she wouldn't need a lot of time or effort to put the pieces together.

But neither twin could fathom how a couple so in love, a couple so happy with their lives could have ever not been so in love and so happy from the very start. That's why Caelum had guilted Cali into stealing their mother's time turner, the last one in existence, the very same one that their mother had been personally repairing for the better part of two decades, with the intent of reopening the time room down in the department of mysteries.

Cali did want to see for herself, her parent's relationship in its early stages, and Caelum wanted to collect data, (Merlin, her brother was such a swot), and use it as part of his 7th-year thesis for graduation. Something about chemical attraction in the brain being stronger than feelings of attraction from the heart. She honestly had stopped listening to him, and it was about this time that the distinct baroque voice of the headmistress called the class to attention. The professor had barely reminded the students to get out their materials so the lesson could begin before the twins noticed a tanned arm raised in the air at the front of the classroom.

They glanced at one another, they knew this couldn't be good.

"Yes, Miss Granger, do you have a question before we begin?" asked the headmistress.

"Well, Professor, I was curious because it's very unlike Hogwarts even with all the changes this year to take transfer students." stated Hermione Jean Granger, resident swot, goody-two-shoes, and brains of the Golden Trio.

"What's yer point, Hermione?" demanded Seamus in his Irish lilt, he was one of the few fellow Gryffindors to return to sit NEWTs. Harry and Ron had both gone straight into Auror training, Neville started his apprenticeship, but so many had perished during the Final Battle.

Hermione nonchalantly asked, "Well, I wanted to know, who were the two new students in the back of the room?"

All eyes went directly to Cali and Caelum. McGonagall smirked at how little actually got by the brightest witch of her age. They did say help if possible, she would see how far this would go, before her theories were proven correct.

Cali looked over to Caelum, it looked like she was going to have to be the mouthpiece. Merlin's beard!, she never catches a break.

"We are here to collect data to complete some research for a project, and the headmistress has kindly let us sit in on her lesson," stated Cali with a cool air of sophistication that would make her house proud. Caelum smirked to himself but still kept his head down. He didn't want to bring more attention to himself than necessary.

"What lesson is your project for?" asked the bane of Cali's existence at the current moment.

Bollocks, the lesson for graduation is a lesson that Hermione herself only instituted about 10 years ago, when she was the undersecretary, it wouldn't exist right now. "Muggle Studies"

"What kind of data are you collecting?", the golden girl asked, as a long, loud, audible sigh could be heard from the opposing corner from where Caelum was sitting, and Cali was now standing.

"Human interaction"

"To what degree?"

"Does it matter Granger? Does it matter that you don't know every little thing going on in the school, that you don't have all of the answers, all of the time?" stated the pureblood prince from the far corner of the classroom.

Cali could hear Caelum grind his teeth, they had never heard their father use such a tone to speak to their mother. This was going to be way harder than they both originally thought. To this point, how had they even been born?, the air was wrought with tension.

It suddenly occurred to Cali that perhaps Caelum had been right all along. That his swotty Ravenclaw nature had already figured out this grand mystery before they even traveled back in time. Merlin's balls! This is why Caelum was so adamant about traveling back. Showing up in the past, giving just enough information, just enough, about their conception for their parents to forge some kind of relationship. The picture-perfect power couple of all relationships at that.

Cali looked down at her brother, it was now or never.

"Actually, the paper isn't for Muggle Studies"

All heads turned towards the twins once again.

"The lesson is called General Certificate of Magic, or GCM for short. It was instituted by the Minister of Magic in 2007. It was a bill proposed by the Senior Undersecretary to the Minister of Magic at the time."

McGonagall smiled, so it would appear that both of these new students were from the future, and she would bet her tartan that both of their parents were inside this room. The attitude of the girl reminded her so much of Hermione, and it would be possible for her to be their mother, but she still didn't have a working theory for the possibility of their father. Her mind drew a blank since Potter and Weasley were both away at Auror training, and the genetics of the twins didn't point to either of them.

"Which means you are from the future then? Not just sitting in this lesson. You must be here for a reason, and since the best lies are half-truths, you are here to watch human interaction, but between specific people?" Hermione inferred.

Cali smirked, her mother had been so busy the last 5 years, more specifically when she was made the youngest ever Minister for Magic. She actually missed this argumentative tête-à-tête with her mother. Cali glanced at Caelum, it appeared that he finally decided he needed to comment. Cali finally took a seat to get out of the spotlight.

"Actually yes, I'm the one collecting the data for my thesis. The lesson requires that each student from each house complete a specific set of criteria in order to graduate. It is designed to play to the strengths of each house while simultaneously having the student step out of their comfort zone to complete the task, test, project, etc." stated Caelum, as if he were reading from an imaginary textbook.

"So data, research, thesis, you must be Ravenclaw," stated Hermione.

"That would be a correct assumption."

"But not your sister." it was a statement, not a question.

Everyone was getting whiplash from the back and forth of the dialogue. But realizing that they had visitors from the future, had kept everyone seated, and interested in what they could gossip about.

"That would also be a correct assumption", Cali decided now it was time to drop the bombshell.

"I took after my father's house, he is after all one of the reasons we are here.", as she pulled her green tie from beneath her robes.

There was a collective gasp from everyone except the twins, and McGonagall. At this point, the headmistress knew they wouldn't be having a lesson. She decided to address the class, "Well how about you tell us what you can, without disrupting the timeline that is, and do you know when you are going to return home?"

Caelum looked relieved at a question he could actually answer. "We only traveled into the past for two and a half hours, at the end of that time, we will be able to travel back. We figured the less time we spent in the past, the percentage of time-related problems would decrease."

Ginny Weasley, had decided to take the advanced NEWT course so she could join her fiancé in the working world as soon as possible, had up until this point stayed absolutely silent next to Hermione. "So you're telling me, a couple of 16-year-old Hogwarts students stole a time turner, returned to the past for two and half hours, just so they could watch their parents, that we still don't know the identity of?"

"17."

"What?"

"We are 17, we actually turned 17 last month, on the 17th."

Padma Patil, one of the many onlookers finally says, "So do you have names, ages, information about that class you have to take for your project, … anything you are allowed to talk about?"

"Well we are twins, born on March 17th, 2000, we just turned 17, and we are in our 7th year, we were both sorted into separate houses. I know you and your twin were also sorted separately. I have heard many great stories about her." Caelum thought he might have said too much, and cast his eyes down, "We are also supposed to graduate in a few months." stated Caelum.

"Each house completes a different 7th-year project." Cali chimed in.

"What was yours?" Padma asked Cali, not making eye contact with Caelum.

"I had to set up and maintain private lessons designed for a house that was not my own," Cali stated. Padma nodded thoughtfully after this. Cali was still glad she hadn't had to talk about her project longer than necessary.

"How were you able to get a hold of a time-turner?" asked Ginny from the front.

Caelum stuttered a little, and looked to Cali for help, she shrugged. "Our mother is the current Minister of Magic, and she has the last remaining one in existence, locked in her office at home. We broke through her wards, and protective enchantments with some help, and borrowed it for a short time. She doesn't know that we are here…. yet."

As Caelum was explaining, Cali was finally able to take a look around. It was a sea of red, yellow, and blue, and only 2 green ties. Her heart twinged with longing, a need to comfort her fellow Slytherins but she couldn't do so openly, and she knew that. Especially with the two in question being her father, and her Uncle Blaise.

It was obvious that this Padma was different from her Aunt Padma she knew in the future, "So that means you were conceived around the time our class is scheduled to graduate, for your birthday to be roughly 13 months from now."

A look of fear appeared on every face in the room. Cali wasn't sure how much more they could reveal, but they needed to do something, or else their time in the past will have been wasted, and her parents will never get together, and that could and would disrupt the entire timeline.

"Well that is true, our parents are so in love, but would never tell us how they met or started dating, and since our life is in the press a lot, they try not to be fake, so the papers won't have anything to talk about. It wasn't until recently that we realized that blood purity used to be an issue between them."

Padma had always been the quick one in the family, much to Hermione's ire, "So we can assume one of your parents is a pureblood, and the other, halfblood or more likely a muggleborn witch or wizard?"

From the back corner, "That's rich, a mud..muggleborn for Minister of Magic?"

"How would you know that our pureblood parent isn't the Minister?"

"There is no way someone raised pureblood would care that much about wizarding politics."

Cali couldn't control the next words out of her mouth, "Is that why you don't care for the political sphere that mum is in?", Cali slapped her hand over her mouth, before more words could come out.

The wide doe eyes of Draco Malfoy, stared straight into Cali's almost identical ones. "What are your names?"

"Her name is Cali, mine is Caelum. Why?"

"Caelum is a faint constellation of stars in the southern hemisphere."

"I know, we had to follow Black family tradition."

"What kind of a name is Cali, though?" snorted Ginny.

"It's short for Callisto isn't it?", asked Hermione with sadness in her voice that wasn't there before. Everyone was staring at her now, "Callisto is the second moon of Jupiter." Everyone nodded in understanding, and once again turned to face Draco.

Cali shook her head, knowing that her mother had at least figured it out, but she had to set her father straight.

"So Mr. Pureblood, care to tell the class when you stopped actually believing all this pureblood holier than thou bullshite."

"Language, Miss…..Miss Malfoy."

"Third year."

"I'm sorry, what was that?" Cali asked.

"I said THIRD YEAR, when someone physically demonstrated that muggleborns weren't worth less than anyone else, that they were smarter than most, and had a mean right hook," Draco replied.

A gasp from the front of the classroom was the only noise.

Because she was still having trouble believing everything she had heard in the last hour and a half, Ginny stood up, "So you are saying that the last 5 years you have not believed in any of the pureblood supremacy malarkey, even though we just had a bloody war over it."

"You are correct." Draco responded, with his head hung low.

Draco looked over to Blaise, who nodded, Blaise had stayed neutral during the war, because his beliefs on the matter were similar, but he didn't want to risk his life for them either.

The entire room sat in silence. Hermione spoke from the front, "So you came back to make sure your parents would get together?"

"Yes."

"No."

The twins said at the same time. Caelum looked ashamed, "I read an article that dad hid away saying that a surreal revelation during a Transfiguration lesson led to his public announcement of supporting muggleborns and a very public declaration of his long-time love for one."

Cali saw red, "You tricked me Cae, you knew I had to study today, and that James would be upset when he couldn't find me, we didn't even tell Lyra we wouldn't be in the castle."

The class still sat in stunned silence, during the argument brewing between the twins. Seamus spoke up, "So you gonna tell us who she is?"

"WHO?" both brother and sister shouted.

The entire class minus three silent individuals, shouted back "YOUR MOTHER?"

Every eye focused on Draco, but Professor McGonagall had hers focused front and center. Hermione looked like she was about to have a panic attack, but was slowly coming down. Silently counting down from 10 to calm her nerves.

"Is Lyra your sister then?" Hermione asked when she had finally counted down to one.

Cali's and Caelum's eyes shot up, Cali had forgotten she said that in her ranting.

"Yes."

"Who is James, your brother?" asked Ginny.

"I should hope not, he is currently my boyfriend," Cali replied.

"A boyfriend, and your mother approves, and his? You are awfully young to have a serious boyfriend." Ginny spoke aloud.

"Well both of his parents are friends with my parents, we have known each other our whole lives, our mothers are the best of friends. Our fathers get on well enough, and we have been together almost two years, and plan on traveling together after graduation."

"How old is this boy that I apparently let you date, and kind of get along with his father?" asked Draco.

"He turned 17 in December," said Cali sweetly, knowing that at least Padma could do basic maths.

"That means his mother is already pregnant if we assume that she also went to Hogwarts and is possibly in this room since you have said your mother is also in this room," Padma concluded.

Ginny covers her mouth, tears starting to stream down her face, and runs from the room.

Hermione begins speaking again once Ginny has fully exited the classroom, "Let me guess, your full names are Callisto Aries, Caelum Apollo, and your sister Lyra Carina then? and to take a guess your boyfriend is James Potter?"

Both twins gasped, "So how long exactly have you had our names picked out then, …. Mum?" asked Caelum.

The collective gasp was so great, it was as, almost all of the air in the room vanished.

Draco smirked, "Well that can't be right. I always figured if I had a child I would name him after myself."

"I don't think you took into consideration how stubborn our mother really is, especially when it comes to getting her way," Caelum added offhandedly.

Cali smirked back, "Are you sure that when you were actually allowed to name one of your progeny, you didn't pick a horrendous name because you had lost a bet to your best mate in 7th year and he got to name your child instead?"

Draco didn't realize that his mouth could drop any further. Blaise chuckled from beside him, "The funny thing is that bet was literally yesterday, and that I told him I finally decided on a name, and that one of his son's would have to be named Scorpius. Please…. please tell me he did it?" Blaise asked, practically bouncing in his seat.

"Our littlest brother, Scorpius Draco Malfoy, born January 5th, 2010."

Loud raucous laughter could be heard from everyone in the classroom except from Draco, who finally locked eyes with Hermione.