A/N So I tried to do this idea where Harry has a loving family and goes dark thing, but I rushed it through. Some reviews made valid points and when I went through and reread Harry Potter: Knight of Walpurgis I realized that there were a lot of things about the characters that I as the author didn't know.

And so here I am slowing down, thinking through my plot and hopefully this turns out to be a believable story. Some of it will be the same, most of it will be different.

Harry will be going dark, though not evil, and make his own third faction because he disagrees with both Voldemort and Dumbledore. However, his morals and family conflict with what he sometimes sees as right or needs to be done as he tries to make the wizarding world a better place.

The man who calls himself Lord Voldemort walked through the blasted door of Potter Manor. He held his wand ready even though he knew no adult was in the building. He had his spy inform him when the adult Potters were away on Order work without the kids, supposedly safe behind the borders of the Fidelius. Not that he cared about the blood-traitor and the mudblood; but one of his most faithful had begged him to save the mudblood's life, so he granted Sevurus his one request.

Voldemort walked towards the nursery, wand at the ready, about to eliminate two of the three threats to his reign. After the two twins died, he would only have to find the Longbottom heir. It would take time, but it would be done.

He stepped into the nursery, and saw two babies in twin cradles. One boy, and one girl. One green eyed, one hazel. One with the beginnings of black hair, the other golden red. Voldemort raised his wand and aimed it at the girl's head.

"Avada kedavra."

His eyes widened in shock for a split second as the spell rebounded off her forehead and hit the nearly invincible Dark Lord in the chest, destroying his body and causing a small explosion. The twins woke up and began to scream.

Lily and James Potter rushed to the nursery ten minutes later, after being informed by their owl that the wards had been breached. It was their secret last defence, training their owl, April, to fly and inform them if the wards were ever breached. She burst into the Order meeting, screeching wildly. This could only mean the wards were breached.

Peter Pettigrew, who had no idea of this defence, and hadn't planned to be around when the Potters found out their kids were dead, was also at the meeting. The Potters quickly told the rest of the Order members that the Fidelius had been breached and that Peter was the actual secret keeper. He was quickly stunned before the Potters along with Dumbledore and Mad-Eye Moody rushed to the Floo.

Both Lily and James were relieved when they saw the nursery partially blown apart, but both kids were safe with no sign of Voldemort. Lily rushed to pick up Calypso, and James grabbed Harry, both sobbing with joy their kids were alright. After everybody calmed down somewhat, Dumbledore asked to see both twins. He quickly noticed there was a scar on Calypso's forehead with some sort of dark energy in it, while Harry didn't.

"It would appear that Calypso is the child in the prophecy," Dumbledore informed the Potters and Mad-Eye. "Eventually Voldemort will return, and he will come for her. But," he said, holding up his hand to stop Lily, who was opening her mouth, about to say something. "That time is not now. For tonight, let us celebrate the turning of a war."

Once the word got out, all across Magical Britain, wizarding households celebrated the Girl-Who-Lived and the downfall of Lord Voldemort. Rejuvenated Aurors made a push against the demoralized Death Eaters, and a few weeks later, wizarding Britain rejoiced again, this time the end of the war.

After the Ministry was back up and running again, wizarding Britain slowly started getting back to normal. People came out of hiding. Many mourned loved ones lost. But they rebuilt.

The Potters removed the Fidelius after a year. There was no need for it, and it only made things difficult when they wanted to invite friends over. They had grown close to the Weasley's during the war, as Arthur was part of the Order of the Phoenix with the Potters and their kids had sometimes played together when they could safely. Ron was the age of Harry and Calypso, and Ginny was still a little baby. The identical twins Fred and George were two years older than the Potter twins, but they still loved to play together.

Neville's grandmother also often dropped him off at the Potter residence for a few hours at a time. While Lily and James weren't super tight with Frank and Alice, they were still greatly saddened to hear jut a few weeks from the end of the war that the Lestrange's had tortured them to insanity, and were happy to help Neville where they could.

One issue that they had after dropping the Fidelius was all the mail that they got. Thank-you cards, offers for interviews from the media, offers to make "Girl-Who-Lived" toys. When Harry and Calypso were three they went to court over "The Adventures of the Girl-Who-Lived" book series, which was entirely fictional without stating it, and made without permission from James and Lily as her guardians.

The author ended up being fined 10,000 and lost the rights to the books. However, Lily and James let him keep writing them as long as all profit went to St. Mungo's.

James and Lily did their best to raise their children well. They were fully aware that Calypso could grow up to be arrogant if they allowed her to and made sure to tell her that while she was famous that didn't necessarily make her better than anyone else. And they also made sure to remind Harry that he was just as special as his sister.

Even from a very early age both Calypso and Harry were as close as could be. By the time they were four the duo was quite the handful. Calypso was the more impulsive of the pair and would often run around the house yelling if her parents were trying to get her to do something she didn't want to; like go to bed. Harry was a more thoughtful and liked to plan things out; or as much as a four-year-old can. While Calypso would try running from her parents, Harry figured out that his mom and dad could run faster and would try hiding. However, his giggling always ended up giving him away.

The twins were more than enough work for Lily and James, but they wanted more than just two kids so when Harry and Calypso were four Sirius Jr. was born. When they announced his name at the hospital, the older (though no more mature) Sirius's ego got so big he was insufferable for a week.

The twins were fascinated by their tiny little sibling and would love to hold him, though one of their parents were always there to make sure they did it right. When Sirius Jr. got a little bigger, but before he learned how to crawl, Harry and Calypso would love to play with him. He would be sat down on a blanket on the floor with baby toys all around him and the three siblings would be occupied for hours. Sirius's favorite were wooden animals toys that were enchanted to make the sounds the actual animals would make when you tap their heads. Lily would often come home from her potions researching job or James from the Auror Department (whoever got off first that day) to the three youngest Potters playing under the watchful eye of one of their two house-elfs, Mipsy or Pokey.

There were several other members of Harry and Calypso's family. "Uncle" Sirius was popular with the kids, doing things like turning their hair different colors, or once hitting James with a hex that made his ears look like an elf's. The Weasleys were over at the time and Harry, Calypso, Ron, Ginny, Fred, and George all roared with laughter when James retaliated by sticking Sirius's knees together for the rest of the night. They thought how he looked when he walked was hilarious. Unfortunately, Fred and George decided right there that they wanted to be pranksters when they grew up too.

Harry and Calypso's other "Uncle" was Remus Lupin, or "Moony" as they just liked to call him. They understood that he was a werewolf from a young age but didn't really care. He wasn't around as often as Sirius. Later they found out it was because he was spending a lot of time trying to find a job only to get fired after a few months when his employer realized what he was. Lily and James made it clear that he had an open invantation to to stay whenever he liked, but he refused their charity.

Last were their grandparents. Lily's parents both died in a car crash shortly after the twins were born, but there was still James's parents. Charlus Potter and Dorea Potter nee Black were both almost eighty, but most wizards lived to around one hundred so they weren't that old by wizard standards. Dorea was a Slytherin at Hogwarts, but the Slytherin-Gryffindor rivalry wasn't so intense around 1920 (if they are a little less than 80 in 1986 then they would have been born around 1910) and she ended up falling in love with Charlus Potter. A true Slytherin, she was subtle and cunning and when she got married she took over the traditional Potter business of exporting and importing potions ingredients. Because she was female, many people underestimated her and she used that to her advantage. Within a few years she became well-known as a savvy businessperson and made several deals that ended up make up most of what consists of the now-sizable Potter fortune. However, she wanted something a little smaller than Potter Manor so her and Charlus desined the slighly smaller Southern House near Dover. Potter Manor remained empty until Lily and James moved back in.

Charlus was a bit of a Gryffindor and worked as a curse-breaker for a few decades. He rose pretty quickly because he would take risks that would often pay off. However, a few years after James was finally born, he wasn't quite careful enough and was hit by some sort of curse that shrunk his leg. Doctors were able to mostly repair it, but because of the dark magic in the curse weren't quite able to get his leg big enough. It remained a little shorter than the other and he had to retire afterwards.

The Potters had a pretty big and very loving group of friends and family, but people outside of their group could sometimes cause problems.

When the twins were almost six, the whole Potter family was invited to Neville's sixth birthday, with had a few kids outside of their normal friend group. Lilith Moon, Oliver Rivers, and Roger Malone were all from families that Augusta Longbottom knew from serving in the Wizengamot for twenty-five years before she retired and were also all Harry and Calypso's age.

They all seemed in awe of Calypso after hearing so many stories about her (none true) and being only six made her out to be super-powerful in their heads. They also seemed impressed that she acted to normally with Neville and the younger Weasleys.

At one point Harry wandered off from his friends to get a drink of water and Lily, Oliver, and Roger all followed him.

"What's it like?" Oliver asked.

"What do you mean?" Harry was very confused.

"Having the Girl-Who-Lived in your house?" Roger said.

Harry was very young and not used to dealing with people that didn't know Calypso so he was still confused. "Well she's my twin sister, I love her very much."

"Well yeah," Lilith said, "but what's she like?"

"Has she been taught all sorts of magic yet?" Roger asked eagerly. "She's super powerful right?"

Now Harry was very confused. Of course Calypso hadn't been taught magic yet, you didn't start until you were eleven. And yes, she defeated Voldemort but it's not like she did anything. His mom and dad had explained to them that it was just a one in a million fluke of magic. "Well we've had accidental magic happen." Harry was actually first, turning James's hair blue when he tried to make Harry eat all of his vegetables before he could have ice cream. It reminded Harry and Calypso of their Uncle Sirius. Shortly afterwards, Calypso had levitated Sirius Jr. in the air when she was trying to play with him and he kept crawling away.

"Yeah," Oliver said, trying to push the subject. "But she must be getting lessons from Dumbledore right?" In his mind, this made perfect sense. Calypso defeated a Dark Lord and must be really powerful. So of course the most powerful wizard he knew; Dumbledore, must be training her.

"What?" While this made sense to Oliver, it didn't to Harry. "No, why would Dumbledore be giving u lessons?"

"Well of course you wouldn't be getting lessons from Dumbled-" Lilith said, but at this point, Harry had run to find his mom, very upset. The three others, not sure what they did wrong just shrugged and went back to the party.

When he found his mom talking to Oliver's mom, she was concerned when he came up to her looking all upset. She took him off to the side where he explained everything. She picked Harry up and gave him a big hug. "Don't worry about them sweetie," she told him. "They just don't understand. You are just as good as your sister."

"But I don't get it. Why would they think Calypso is so much better than me?" Harry asked.

"Because they have been told stories that aren't true. It just happens. Don't worry, they'll understand when they get older." After a few more seconds, Harry had calmed down, so Lily set him down and he went to go play with Ron and Neville.

Ten months later, the final Potter child, Emily, was born. Calypso and Harry of course loved her, but some of their fascination with babies had diminished, so while they spent plenty of time with their younger sister, it was two-year-old Sirius that spent the most time watching her.

Around this time, James took Calypso and Harry for their first flights on a broomstick. He took turns, sitting behind them and holding on with one hand while steering with the other, while Lily worried from below. She made sure her husband didn't do any crazy tricks, which he couldn't really do with only one hand.

Harry liked flying fine, but it was the more impulsive Calypso that really took to it. She loved it and begged for another flight when her father landed them. James finally acquiesced and she loved it just as much as the first time.

Calypso took more after their father. She loved to watch Quidditch and fly. And the twins were quick to take her under their wing when it came to pranking.

Harry was more like their mother. While he loved to prank as well and liked to fly as well, it wasn't to the same extremes as his sister. He really preferred to beg their mom to teach him some magic. While he couldn't get a wand until he turned eleven, he could learn wand movements and some basic potions as well, and read over the theory. But his mom always said to wait until he was older.

Life went on for another two years. The now four-year-old Sirius spent more and more time in the sandbox Lily had insisted James built. She had loved to play in one as a kid and was disappointed that Calypso and Harry never really liked it. However, Sirius loved to build in it, which delighted his mother. She would sometimes levitate some of the sand above the sandbox to create floating platforms for Sirius to build on, which he always loved.

Eight-year-old Harry got more and more insistent about learning magic, and Lily finally gave in and agreed to give him and Calypso some basic lessons. Just going over wand movements and basic theory of some first-year-spells as well as learning what different potion ingredients did. Most purebloods did something similiar so she didn't think it would give her kids to big of an advantage. Plus, she had heard that her old friend Severus was tough in the classroom and didn't accept anything but the best, so she reasoned that she was just helping her kids stay afloat in that class.

She had never reconnected with Severus. While Dumbledore had told her that he became a spy when he learned she was in danger, Lily also knew he wouldn't have cared if James, Harry and Calypso died. While Severus was her best friend from childhood, James, Calypso and Harry were her family now so she didn't put out an attempt to reconnect.

While Calypso enjoyed the lessons well enough, Harry really took to learning. He would memorize the wand movements and sometimes take books for the library to expand on what his mom was teaching her. Lily even caught him once reading a book that had a list of the effects of potion ingredients. This didn't really bother her, because if her children had a small head-start in their first year, well that was no biggie in the grand view of things. What she didn't realize was that Harry wasn't sticking to first year material.

Something that both twins loved equally was listening to their father as well as Uncle Sirius and Moony if he was over talk about their adventures as students. They thought it was funny when Sirius was in dog form and they would pet him. He would roll over onto his back and look as if he was asking for a tummy rub. Unfortunately for him James and Lupin never let it go so he didn't do that again. However, he would sometimes walk around the house as a dog for fun. James wouldn't transform as much because his wife forbid him to do it in the house, as well as let Calypso or Harry ride on his back. The still-slightly immature auror would wine about that a little, his wife still had him wrapped around her little finger so he agreed without to much fuss.

The twins made a slightly larger fuss when their parents told them on no uncertain terms they would not learn to become animagi until after Hogwarts and that their father, Sirius, and Peter were lucky not to have died learning it on their own and so young.

Once, without James or Lily knowing, Sirius told the twins about a prank they could do without magic. He told them to unscrew the lid on the salt shaker until it was barely on and wait for somebody to get some salt. A few days later the twins got their mother like this. James was laughing so hard and telling the twins good job that he slept of the couch for that night.

Another few years passed and Harry and Calypso eagerly began looking forwards to their eleventh birthdays. When it came they woke up super early as not to miss their first birthday present. Their parents got up just in time for the owl post to come in and for Harry and Calypso to receive their Hogwarts letters. They shrieked and ran around the sitting room in excitement. When they settled down, Lily made pancakes with whipped cream; their favorite, for breakfast. Their whole family came over, Sirius, Moony, as well as their Grandpa Charlus and Grandma Dorea.

When everyone settled down, the twins asked for their grandpa to tell them a story about being a curse-breaker. As much as they loved listening to stories about Hogwarts, sometimes they like listening to his exciting adventures. Emily, now five also loved to listen to them and when asked what she wanted to be when she grew up, said she wanted to be a curse-breaker. Charlus would of course encourage it while Lily would just hope that she changed her mind like young kids so often do. Her and Dorea would sometimes sit down and discuss what would happen to the Potter family without the females around to keep all the man-children in check.

However, the twins were really looking forward to the afternoon, when their parents had promised to let them go to Diagon Alley for the first time. The Potters preferred to stay out of the public eye and so had never taken Harry or Calypso to Diagon Alley with them whenever they went. However, Harry and Calypso were growing up and needed to come back into the world as a whole, and so had promised to let them go shopping for their supplies.

And so it was with great excitement for Harry and Calypso that they got ready to Floo to Diagon Alley. Their "uncles" weren't going with them, but their grandparents were. It was time for the Potter twins to come back into the greater wizarding world.

I hope you guys like this. I spent basically the entire time doing something that I never did with Knight of Walpurgis; giving my characters some development. I basically skipped that step the first time around that isn't a great idea when you are writing a story.

Next chapter will be Diagon Alley, should be out within a few days.