Prologue

Eris sighs as she looks down at her very best friend, her last request had been to make sure she would never be used by any member of the Silver Millennium Court ever again. The dear Moon Princess was dead because of their duplicity. She knew 2005 was a major tipping point in the Greco-Roman and Judeo-Christian pantheons. She holds on to the princess' soul, deciding to have her be reborn when she could be of the most help. A son of Poseidon and the true vessels of those idiots Michael and Lucifer would all need her help and the hime would be Eris' own daughter. This would throw several cosmic monkey wrenches into the works.

Chapter 1

Serena Winchester glares at her algebra teacher, why the hell Dean thought it would be a good idea to leave her at a damned boarding school like Yancy Academy she would never know. The plus side was that she met Perseus 'Percy' Jackson. Everyone thought he was a delinquent but she knew better. At least she was able to help Percy with their school work and she was teaching him how to recite the exorcism and how to make a Devil's Trap, plus how to hide them exceptionally well. Serena knew he was a half-blood but that he didn't know. She was doing everything she could to help him be able to protect himself. She'd even taken him on a shifter hunt to prove to him that creatures like that existed and Percy started to really take to her hunting lessons.

The trip to the museum put Serena on guard and she deliberately sat with that horrid girl Nancy Bobofit in order to keep her in line. One glare from her kept the little bitch in check. Serena had all of her weapons from her mother which came in silver, regular steel, celestial bronze, the silver was a knife, the bronze a glaive, and the steel were daggers. Serena also had a special bag that carried all of her hunting gear. She knew the algebra teacher was a monster, Grover Underwood a satyr and Mr. Brunner was Chiron. She knew all that and she makes sure to stay next to Percy in the museum but slips away during lunch, she eats quickly and gets everything set up. Mrs. Dodds looks stunned when she is trapped, " Okay, bitch, what the hell do ya want with Percy 'cause I ain't afraid ta gank ya. " Serena snaps.

" Shit, you're one of those Winchesters? "

" I know yer a fury, ya idjit, he's unaware. " Serena snaps.

The fury blinks at this, " Winter Solstice, where was he? "

" With me and my oldest bro Dean, he came up for Christmas. We went to the movies and then on a hunt, just a simple salt and burn. Yeah, Percy's learning the tricks of the Hunter trade, bitch. "

" My master's helm is missing and apparently a certain zappy thing has gone missing as well. "

" Well, shit, gotta avert an apocalypse 'cause ole zap happy's gonna think Percy stole his toy 'cause he's well, ya know. " Serena mutters.

Percy blinks, " Serea, what…"

" The less you know about your true nature the safer you are. " Serena tells him and then pull out her phone and calls her oldest brother.

' Rena, what the hell? '

" Dean, a certain zappy thing and a certain item belonging to a certain Lord of the Underworld are missing, get yer ass to NYC, post haste. Perce and I will probably be in this up to our eye balls and we'll probably only have until the Summer Solstice to find the damned things and return them too. "

She can hear him groan, ' Damn Winchester luck. Sammy and I will be there, Half-blood Hill, right? '

" Damn straight, now I need to see if I need ta gank a fury or not. Love ya bro and tell Sammy I love him too. " Dean had managed to IM her, or Iris Message her and let her know what was going down. She was glad to see Sammy again, he had a decade on her and Dean had fourteen years on her.

" Okay, Percy, I'm going to go with you to explain to your mom what's going down, if you take me along to Montauk then I can help you trick the place out. We can at least keep your mom safe as she can't go to Half-blood Hill. " Serena says, her mother had informed Dean and Sam as to her true nature and they were both clear sighted mortals, well, they may have been legacies too, Eris, her mother wasn't too sure on that. This meant they also had Celestial Bronze weapons to deal with those monsters and they made sure to pull major chaos causing pranks as offerings to her mother. She did the same then Serena remembers the fury, " Tell your lord he was with me and if we get the quest we will do whatever we can to retrieve his symbol, Sally Jackson is not to be touched. "

The fury nods and Serena releases her, " She would have just reformed anyhow. " Serena tells Percy. Then she leads him back outside, " Pretend to go along with the changes, it'll keep you safer until the end of the school year. "

Percy nods, Serea had never led him astray yet so there was no reason to believe she would now. He was the only one allowed to call her Serea and even her older brother had backed down from the glare she leveled at him. Then again Percy had learned that feminine fury was not to be messed with. The only time Smelly Gabe had left him alone was when Serea's oldest brother Dean had been around, as even Gabe knew Dean was not to be messed with in any way. Hell, Dean had threatened to castrate him if he ever touched his little sister or Percy himself and he found out about it.

Serena was surprised to see her brothers waiting at Yancy Academy to pick her up at the end of the school year, " Yo, Perce, free ride, Grover, get your protector ass over here, make life easier. "

Percy and Grover make their way over to the black 1967 Chevy Impala or as Dean had named her, Baby. Serena first gives her wayward brother a punishing hug and then introduces everyone, " Dean, we need to fill in Sally, think you could help us deal with Gabe. I would do it but, in this one instance you're the better choice. "

" Does Percy know? " Grover asks.

" I've trained him as a Hunter of the non-Greek baddies, Grover, I've kept him unaware, got the fury whom was our damn math teacher to leave him alone and told him to play along when the Mist did its thing. " Serena states.

" You know though, that's what threw the trainer off. " Grover says.

" Mom told my older bros and since they already hunted things that went bump in the night they accepted it and made sure I could handle myself. When I realized Perce's situation I decided I needed to train him how to hunt not to mention the fact that Sammy taught me how to deal with that damned Dyslexia and I'm the only damn one that got Dyscalculia as well, Dyscalculia is the math version. Give me ancient Greek to read and I'll be happy. " Serena says and gives Sammy a look.

" Right, you get car sick so you have to have the front seat. "

Dean groans, " You drive, Sammy, I'll take the back since I am shorter. "

Serena was quick to change the station to some newer songs, " Dean, shut up, I need some serious de-stressing so don't bitch about my music preferences. "

Dean winces and Percy grins, " Nancy Bobofit tried to steal her MP3 player. "

" Shit, you don't mess with Rena's tunes. "

" It also needs charged. " Percy admits.

" Dammit, I like my music. " Dean whines.

" I said no bitching, Deana. " Serena snaps.

Dean grimaces, " Check the glove compartment, I think I still have some cookies'n'cream bars in there. "

Serena was searching in mere seconds and pulls out the bars, " Dean, where the hell have you been that they've congealed into one massive mess? "

Sam chuckles at this, " Outer pocket of my laptop bag, Dean. "

Dean hands the candy over and Serena was eating immediately. Percy gives Sam directions to his place and Dean smirks when they reach their destination. " Grover, Sammy, stay in the car, Dean, you'll be going with Sally to the Montauk place she's rented and making it as safe as you can, offer my mom a whole damn cheesecake, New York Style, covered in Boysenberries and she'll also help out. "

Dean nods as they head inside, Dean led the way and smirks when he sees Gabe, " Hey, asswipe, miss me? "

Gabe Ugliano pales as he sees Dean Winchester, " The hell do you want? "

" Just making sure Sally and Percy make it to their getaway unmolested. " Dean answers while Serena helps Percy pack up his and his mother's things.

Back in the Impala Sam grins, " You're a satyr, that was Rena's way of telling me and Dean without raising suspicions. "

" Whom is her mother? "

" Eris, Goddess of Chaos. Eris actually helped us out a lot seeing as how Dean essentially had to raise Rena and myself. Eris has actually made Dean and I her champions as we're good at causing chaos wherever we go. This means that she can see her daughter a lot more often not to mention Eris is the only one whom can teach her some things. " Sam answers.

Grover bleats at this, " Bad enough I'm almost certain Percy is Big Three material. Still she has kept him safe and trained him up. "

" She wanted us here for a reason, we can kick ass and take names including the monsters Half-bloods deal with as Eris gave Dean and I Celestial Bronze weapons. Maybe Serena can convince the Hephaestus kids to make a gun that fires Celestial Bronze bullets too. "

Grover blinks, " The Ares and Hephaestus kids will all be kicking themselves for not thinking of that. "

" Gotta think outside the box. " Sam says and sets to work on his classes while he could. He was also doing odd jobs wherever he and Dean went to make some money, convincing Dean to do so as well.

He was also working on paying down all of the credit card debt that Dean had accumulated from all his scams. Thankfully his odd jobs made much more money than Dean's. Serena and Percy return, " Dean's gonna wait for Sally to return, he wants to speak privately with Smelly Gabe. " Serena informs her older brother.

" Smelly Gabe? " Sam asks.

" My step-father, Gabe Ugliano. " Percy answers.

Percy gives Sam directions to the cabin as Dean had called Sally to pick up the cheesecake to offer to Eris. They chat about every day nonsense stuff though Sam did stop to stock up on his sister's cookies'n'cream bars. Dean had actually called terrified of the fact their little sister had hit puberty at ten. Thankfully he and Dean were both saved from an awkward conversation by a friend of his, Regina. She handled that and The Talk. It was times like that Dean was actually grateful Sam had gone to college not to mention the fact that if Sam could swing it and become a lawyer they could get information legally a lot easier unless they had Serena with them and she manipulated the Mist.

Disclaimer: I do not own Sailor Moon, Percy Jackson, or Supernatural.