PJatO || Nicercy || HTTYD || Mischief Makers and Dragon Riders || RotG || HiJack || PJatO

Title: Mischief Makers and Dragon Riders – The New Demigods

Fandom: Percy Jackson and the Olympians / Heroes of Olympus / DreamWorks

Disclaimer: All rights concerning the movies reserved to DreamWorks. 'Guardians of Childhood' is property of William Joyce. 'How To Train Your Dragon' is property of Cressida Cowell. All rights concerning Percy Jackson reserved to Rick Riordan for he created the awesomeness that is Nico di Angelo. And everything else related to Percy Jackson and the Olympians / Heroes of Olympus. Aside from the Gods, they belong to the old Greeks. This fanfiction and its OCs on the other hand are entirely mine. No money is made with this, though reviews are more than welcomed.

Warnings: shounen-ai, magic, fluff, hurt/comfort, angst, explicit intercourse, anal, shoujo-ai, hetero

Main Pairings: Nico/Percy & Hiccup/Jack

Side Pairings: Piper/Annabeth, Jake/Will, Frank/Hazel/Leo, Jason/Reyna, Malcolm/Katie, Shane/Lacy, Chris/Clarisse, Eret/Astrid, Fishlegs/Heather, Paul/Sally

Rise of the Guardians Character: Jackson Overland | Jack Frost (Khione)

How To Train Your Dragon Characters: Hiccup Horrendous Haddock III (Hephaestus), Toothless (Night Fury), Fishlegs Ingerman (Athena), Meatlug (Gronkle), Heather (Aphrodite), Windshear (Razorwhip), Snotlout Jorgenson (Ares), Hookfang (Monstrous Nightmare), Tuffnut Thorston (Hermes), Ruffnut Thorston (Hermes), Barf & Belch (Hideous Zippleback), Astrid Hofferson (Athena), Stormfly (Deadly Nadder), Eret Eretson (Ares), Skullcrusher (Rumblehorn)

OC Dragons: Festus (Leo's Razorwhip), Shadow (Nico's Night Fury), Blueberry (Percy's Golphin), Snowpiercer (Jack's Polar Serpent), Aegis (Annabeth's Silver Phantom), Maimer (Clarisse's Monstrous Nightmare), Trick & Treat (Connor & Travis' Hideous Zippleback), Torry (Lou's Mood Dragon), Trouble (Cecil's Terrible Terror)

Percy Jackson Characters: Perseus Jackson, Nico di Angelo, Annabeth Chase, Malcolm Cage, Katie Gardner, Jake Mason, Nyssa Black, Leo Valdez, Shane McNabb, Drew Tanaka, Piper McLean, Lacy Hunnigan, Mitchell Logan, Clarisse la Rue, Travis Stoll, Connor Stoll, Chris Rodriguez, Cecil Rogers, Lou Ellen, Will Solace, Jason Grace, Reyna Avila Ramírez-Arellano, Frank Zhang, Hazel Levesque, Tyson, Sally Blofis, Paul Blofis, Mrs. O'Leary, Blackjack

Summary: Camp Half-Blood requests help from their European counterpart Berk when dragons start populating North America again. They need to learn how to live with dragons instead of killing them as they normally do with monsters. So while Nico goes on a quest to bring in the European dragon riders led by a son of Hephaestus named Hiccup Haddock, Percy goes on a quest to collect a son of Khione by the name Jack Frost. Jack and Percy get along great and so do Hiccup and Nico. Between the two sets of blossoming bromances, surely the boys can manage to figure out their romantic life too.

Mischief Makers and Dragon Riders

The New Demigods

Chapter 1: Percy Befriends Jack Frost and Nico Takes a Quest

The past two years since the end of the Giant War had been surprisingly calm. The demigods spent their time rebuilding their homes and establishing peace between Romans and Greeks. The former heroes enjoyed retirement and the most exciting tasks at hand were quests to retrieve new demigods. It was wonderful, really. Nico spent his days at camp now, he had made friends, trained and managed to overcome his social fears and the fear of standing true to himself. Well, it helped that about a year after the war and after Percy and Annabeth broke up, Annabeth and Piper got together as the second out and proud couple camp had; after Jake and Will. Things got easier for Nico. The greatest help with that were his friends though. Will, Cecil and Lou. The three had made things so much easier for Nico, had helped him settling at camp and training. At first, the son of Hades had been very reluctant about training, knowing that the only one who could really rival his powers was Percy. But Lou Ellen and her magic proved to be a pretty good match too. So Nico trained. A lot. Not just his powers; he also gained quite some muscles. And according to Will, the growth spurt Nico had hit at sixteen, had really helped Nico too. The blonde son of Apollo was a very invested match-maker for Nico, who could only roll his eyes at his best friend's efforts though. There was only one love for him and that love was attending college by now, studying marine biology and being very much single ever since Annabeth and he broke up. In short; Percy Jackson.

At this point, Nico had completely accepted that. He had accepted his feelings for Percy and after having tried to get over Percy after the Giant War, Nico now saw that there was no one else for him. There was only Percy and there probably always would be only Percy.

"Nico di Angelo, the brooding bad boy I was desperately looking for!"

Nico slowly raised one unimpressed eyebrow as he turned to look at the widely grinning Latino who just entered his cabin. Leo Valdez was rarely good news. Most of the time, things exploded when Leo was around. Nonetheless, Nico motioned for Leo to step up.

"What do you want, Valdez?", asked the son of Hades suspiciously.

"Your help. On a quest", declared Leo with a bright grin. "We're going to man the Argo II and travel to some secluded Scandinavian island, because there is some demigod over there, who should be collected, according to the gods. I already asked Piper, Annabeth, Nyssa, Jake and Will. And Will said I should also bug you about coming along. You know, seven demigods and all that."

"Why me? Why not... Percy?", asked Nico, massaging his temples.

"Haven't you heard?", asked Leo a bit confused. "Percy is on his own quest. There is some mischief maker in... Burgess, or something. Chiron send the Stolls and Percy out." Nico made a face at the idea of Percy being on a quest all alone with the Stolls. "It's some really big deal", continued Leo, eyes sparkling. "I got the quest from my dad, because apparently I have an older brother on that island. A very awesome big brother, because he and those other kids are some kind of... dragon trainers. The gods agreed that they should be brought here so they can share their skills with us. Imagine, riding a dragon into battle! Well, not that I'm hoping for a next battle, but still!"

"Dragon riding?", asked Nico curiously, raising one eyebrow. "...Very well."

"This is gonna be awesome!", exclaimed Leo, pumping his fist into the air.

"I highly doubt that", grunted Nico and shook his head.

/Burgess, with Percy & the Stolls\

"You know, when Chiron said there was a 'mischief maker' in this town, I was kind of expecting... you know, one of your kind", grunted Percy and made a face.

"So were we", huffed Connor with a glare. "But this is worse."

"Less whining, more getting us out of this!", exclaimed Travis next to his younger brother.

"I should be able to get us out, just give me a moment to concentrate", sighed Percy.

Thy were in the middle of a lake. Frozen to said lake. The three of them had been in hot pursuit of the demigod in question and somehow everything had kind of... gotten away from them. Percy and the kid clashed, Percy used his powers in an attempt to catch the boy with his water-powers. Then, in the middle of August, the lake froze around them. The stranger snickered and flew away. He literally flew away. Percy had no idea what was going on here, but Jackson Overland was not your average child of one of the Olympians. And honestly, Percy already had a hard enough time memorizing how to recognize kids of the Olympians. Closing his eyes tightly, Percy tried to find a connection with the essence of the ice; the frozen water. It took a while to reach the deeper parts of the lake that weren't frozen and forced the connection from there on out until the ice cracked and in the end fast melted. Before the Stolls and Percy could fall, the water practically gripped them and carried them to the shore again. Connor and Travis were short of kissing the land.

"Okay, so, any speculations on who his godly parent is?", sighed Percy.

"Well, that's not too hard a guess", huffed Connor and rolled his eyes. "Leo talked a lot about the lady after the Giant War. According to Piper, he even had a crush on her."

"Lady Khione, goddess of snow and ice", supplied Travis when Percy still looked lost. "Would also explain why he was able to fly off like that. Khione is the daughter of Boreas, god of the North Wind, and Oreithyia, goddess of mountain winds, and her sister is Aura, goddess of the cool breeze. Literally the entire family aside from Khione are wind-related."

"...Why do you know that?", asked Percy a bit stunned.

"That new camper we told you about, the chick that came in like March, she's a daughter of Aura and she goes on and on and on about her family tree", sighed Connor and rolled his eyes. "My mom's father is the god of the North Wind and his brothers those of East, South and West! We are all very important! Without us, there wouldn't be any currents! We make weather, bla, bla, bla."

"But since she was the first daughter of Aura around, we had to help build her a cabin", muttered Travis annoyed. "And the entire time, she cited myths and relations and listed powers... urgh."

"Okay, okay, okay! Enough of that!", laughed Percy and held his hands up in surrender. "So yeah, goddess of snow, makes sense. Since he's literally leaving a trail of snow behind. How about we follow that and... try again? Maybe this time, he'll listen instead of freezing us."

/Argo II, with Nico & the others\

Going on this quest had been an awful, awful idea. Nico already regretted it three days into the journey. Listening to Will's mother-henning was already bad when he had his own cabin to flee to, but now they were stuck on this small ship. The banter between Leo, Jake and Nyssa was also quite the headache. All the technological babbling. The worst – even worse than seeing Will and Jake kissing and cuddling, which already ranked right up there with seeing Hades and Persephone making out – was spending two weeks on a ship together with Annabeth Chase. Nico was not a fan, to say the least. He had never really been. She was too knows-it-all, bordering arrogance really, then the fact that she had gotten to date Percy Jackson. Okay, maybe mainly the part about her having dated Percy. But now she was dating Piper and honestly, that got annoying fast too. Then again, Nico generally got annoyed by happy couples. They made him want to claw his eyes out.

"You need to get laid", declared Piper matter-of-factly as she sat down next to him and handed him a cup of coffee. "The way you glare at every happy couple ever makes me fear I'll drop dead."

"What can I say? You people are disgusting", muttered Nico grumpily, emptying the cup in one go.

"You're only saying that because you don't have the love of your life sitting on your lap during movie night, or cuddling with you in bed, or, well, releasing all that pend-up energy with, if you know what I mean", chuckled Piper teasingly. "When are you going to confess to Percy?"

"I already did that. In public", muttered Nico defensively.

"Yeah, telling everyone how you're 'over' your 'crush'. Because anyone with half a brain is gonna believe that", snorted Piper ridiculed and rolled her eyes. "That was about as believable as when you pretended to be in love with Annabeth, you idiot."

"What else was I supposed to do?", sighed Nico exhausted. "Saying I'm over him may be the best way to actually start moving on. Was I supposed to say I can get lost in your beautiful eyes, or listen to your dumb, dorky jokes all day long, or stare at that ridiculously perfect ass of yours for even longer...? Because that is not going to help me. It's just going to get me Percy's pity."

"Will's right, you're hopeless", sighed Piper and got up from her seat. "Have fun wallowing in self-pity then. I'll check in with the others, see how long it'll take us."

While Nico grunted, Piper rolled her eyes and left the room to go and find her girlfriend. Annabeth was involved in some kind of heated debate with Will. Piper didn't even want to know what it was, so she decided to instead selfishly interrupt them by sitting down next to Annabeth and kissing her. The blonde was instantly dazed and returning the kiss eagerly.

"Great. Thank you, Piper", called Nyssa out relieved, giving her thumbs-up. "They started to get on my nerve. The next alternative would have been to crash the ship into the nearest iceberg, but I was afraid Celine Dion would be popping up and start screeching..."

Piper snorted amused. She liked the daughter of Hephaestus a lot. Then again, she generally got along better with the tomboyish girls, like Nyssa or Lou Ellen. As she and Annabeth parted, Piper pulled her blonde a little closer and Annabeth was more than happy to snuggle up to her girlfriend.

"So, Nico got a stick up his ass", pointed Piper out casually.

"Funny, I always assumed his problem was that he doesn't have a stick up his ass", said Nyssa.

"The problem is that he doesn't have his stick up Percy's ass", corrected Will annoyed.

"Everybody knows that", sighed Annabeth, chin resting on Piper's shoulder. "Everybody aside from Percy. It's kind of sad, that he doesn't... get it. I mean, at this point, Percy truly just... needs happiness. The war had gnawed him down and while most of us seem to have some kind of way to cope, someone to cope with – Reyna and Jason, me and Piper, Leo and Frank and Hazel – he is still trying to shoulder everything on his own. He's horrible like that, trying not to burden anyone. What he needs is someone to love, someone to love him and force him to face his fears and feelings."

"Nico sure is stubborn enough to try and force Percy to confront his problems", offered Will.

"The problem however", called Leo out with a broad grin. "Is that they're both too stubborn to face it. Believe me, I always get to hear all the complains from Hazel whenever I visit my Romans."

Piper heaved a sigh. Leo was right, there really was no one who could compare in stubbornness to those two demigods in particular. It would take a miracle to make them fess up.

/Burgess, with Jack & Percy\

Percy and the Stolls had split up, because even though Burgess was a small town, it was still pretty big when three foreigners were searching for one particular kid who knew the town like the back of his hand. Percy however had one advantage over the Stolls, because he could feel water and snow was essentially frozen water. So the intense snow-storms were easy enough to track.

"Not this time, you don't", called Percy out and lunged at Jackson.

Jackson hit him with an intense wave of snow and tried to blow him away with the help of the wind. But this time, Percy had his own trick up his sleeve. He summoned a harsh, cold rain that instantly dragged Jackson down, causing the surprised demigod to land uncomfortably on his ass. Smirking, Percy jumped Jackson and came to straddle Jackson's waist, holding him down by the throat. Percy stared stunned as he finally got a good look at Jackson. He was ridiculously gorgeous. Pale, translucent skin like porcelain, eyes as blue and deep and bright as ice-crystals and hair white as snow. He was wearing a dark-blue hoodie with a silvery-white ice-pattern and brown leather-pants that looked more like they had been painted on, really. If cute bottoms were his type, Percy would probably be all over the son of Khione. Percy however preferred to be the cute bottom in his relationship, so as things were, he just stared down at Jackson a bit ridiculed.

"How has no one ever called you out on being a demigod? You look like you're out of some anime or something", blurted Percy out, looking a bit dumbfounded. "I mean, your hair alone!"

Jackson grinned up at him amused. "Yeah, no kidding. But well, what can I say? No one sees me. No one... ever saw me. It's kind of... like I'm invisible. The weird freak with the weird white hair. People steer clear of me, especially since monsters started trying to eat me. It just... looks weird to mortals. They don't see what I see? So they're even more freaked out about me..."

"...That why you ran?", asked Percy curiously, leaning back some but staying seated on the white-haired boy's waist. "Because you thought we were monsters? Or bullies? Because we're not."

"Naw", shrugged the other. "You're other demigods, aren't you? Grandpa North warned me about you. Told me I'd be better off on my own, with him looking out for me."

"...Grandpa North?", echoed Percy curiously. "Look, I'm Percy Jackson, the other two were Connor and Travis Stoll. Yes, we're demigods, like you. We came to bring you to a safe place."

"Grandpa North, as in Boreas, god of the North Wind. He's been... looking out for me", shrugged the son of Khione. "I'm Jack. Jack Frost. And I don't believe in safe places."

"Jack Frost?", repeated Percy with a grin, tilting his head. "That's a good one. Since your name's Jackson. Okay, listen. I never believed in safe places either, you know?"

"Because your life's been so hard?", questioned Jack, raising one eyebrow doubtfully.

"Well, when I was twelve, I already had spent half my life with an abusive stepfather, then there were the monsters trying to eat me and me thinking I'm going crazy because I didn't know about demigods or anything and no one believed a word I said, which added to all the bullies trying to beat me up and knock me down for being different and a bit slow", listed Percy casually. "That was when I was brought to camp. I didn't believe in a safe place either, a place where I could belong. But it exists and... no matter your powers or parentage, you're not weird there. You're just... one of us. You're a demigod, you belong with demigods. You deserve to be safe."

Jack stared at him doubtfully, eyebrows knitted as he slowly looked Percy up and down. Speaking of weird, Jack was pretty sure Percy's eyes were even weirder than Jack's hair. White was at least a color people knew – or lack of color, as his buddy Aster the art geek would point out – while this mixture between green and blue was pretty unnatural. And they were sparkling so bright, it was ridiculous. Though, honestly, they were rather beautiful. The whole guy was rather beautiful and looked rather honest. Jack doubted the guy was a liar and what would he gain from luring Jack somewhere? If he was a monster, he could have already eaten Jack.

"You have powers", whispered Jack softly. "The... rain-thing you did and the thing at the lake. You have weird powers like me. I never met anyone with powers like mine."

"Yeah, I got powers", agreed Percy mischievously, summoning the rain above them to form a shield and cover them from even more rain before forming a ball of water to levitate in front of them. "I'm the son of Poseidon, which means I can control water, just like you can control ice. You... know about your mom? Since you said your... grandpa is watching out for you? What happened to you?"

Percy slowly slid off Jack's lap so the two could sit opposite each other while Jack contemplated the answer himself. "I... didn't know what I was, until like... a year ago, maybe. Used to live with my dad, my... stepmother who I thought was my mother and my baby-sister Mary... We were in a car accident, crashed into a frozen lake... I guess... that triggered my powers for the first time. Used to be a brunette with brown eyes, you know? But when my, uh, godly genes broke out, I kinda... bleached out all over? My powers over ice saved me, I surfaced hours later, it was already the middle of the night... First thing I saw was the full moon, it was so... overwhelmingly mighty and... it talked to me. Or, well, so I thought. When I came properly to it, I realized this beautiful woman flying in front of the silver moon. She kind of melted in, with her white skin and white hair. It was my mother. She... came to check on me, told me that Jackson Overland had died, that I was reborn as something... more. I was the strongest child of hers in centuries. She gave me the name Jack Frost, said it was why her and my dad picked Jackson because of Jack Frost, or Jökul Frosti, some other snow god she is friends with. She told me I could do much, I just had to... be careful. She gave me into the care of my grandparents, grandpa North and grandma Tooth have been watching over me ever since. But... if it's really safe at that place you come from, why... didn't she send me there?"

"First of all, grandma Tooth?", echoed Percy doubtfully before shrugging. "And your mom, she... chose the wrong side in the last war between the gods two years ago. I guess she may have felt like maybe you as her son wouldn't be welcomed? But that's not true."

"Huh...", nodded Jack thoughtful. "And yeah, grandma Tooth, because first of all I have a hard time pronouncing Oreo... Oray... Oreithyia – see, hard time – and she's actually kinda looking like a fairy. Like the tooth fairy, that's why I started calling her Tooth, you know?"

"It's... nice your godly family has been watching out for you, but I think it's time that your demigodly family watches out for you", stated Percy as he got up and offered Jack a hand. "I mean, the gods helping is all nice and stuff, but... where are you living? Do you have friends?"

"I'm living right here, at the lake", shrugged Jack, reluctantly taking Percy's hand. "And I have a friend, his name is Aster. He's a Pooka – that's some monster-bunny race from Australia, but honestly, he's actually really cool, not like a real dangerous monster or anything."

Percy forced a small smile as he made a simple hand-gesture to get them both dry again and make the rain stop. "My very first friend was a satyr. And my baby brother is a cyclops. I also have a pet hellhound and a pet skeleton kitten, though the latter is living with my parents at the moment – mom and mortal stepfather. So, yeah, I know unconventional is... good and fun, but sometimes, parts of your life should be conventional. Regular. Having a home to return to. Support. A... decent meal on the table trice a day? Because looking at you, skinny boy, I doubt you got them."

"Okay, okay, whatever. I'll come with you", sighed Jack in defeat. "But... You're... You're gonna vouch for that place, right? So if this turns out to be not as good as you promise, you're in a lot of trouble and I am out of there faster than you can say your own name."

"Deal", agreed Percy and they shook hands on it, both grinning a little. "You're gonna like Camp Half-Blood. And I think you're gonna get along great with the Hermes-kids... which reminds me that we should maybe start looking for Trav and Con before they get themselves in trouble..."

"They do that a lot?", asked Jack amused.

"Kids of Hermes", was all the answer Percy gave. "You'll love them."

/Argo II, with Nico & the others\

"Are we there yet?", whined Leo, leaning against the mast.

"No, not yet", sighed Nyssa a bit annoyed.

"And yet?", whined Piper, sitting shoulder-to-shoulder with Leo.

"No, still not", grunted Jake, more than just a bit annoyed.

Jake and Nyssa had taken over the control so Leo could get a break and Annabeth was leaning over a table to discuss their approach with Will while Nico was in the crow's nest and glaring into the horizon. In short, both Leo and Piper were bored out of their minds and that was not a good combination. Those two friends were very hard to endure when they were bored.

"Let me correct you", announced Nico as came down. "We're there. I can see the island of Berk not too far off. Can feel the magic surrounding and protecting the island. Welcome to Berk."

Author's note: Sooo, here's to something new! HiJack is actually in my top five of favorite all time ships, so it is due time I start paying attention to it. And what better way to start than with a nice crossover to another one of my top five OTPs? ;)

As a little orientational help, I put the respective godly parent of the HTTYD/RotG characters in braces behind the character in my little list up at the head of the story. So, if you usually skip that, maybe take a look for orientation. There is also a list of OC dragons that will sooner or later show up, considering the purpose of this story is to teach the American demigods how to train a dragon.

Next chapter is gonna feature the first encounter between the Argo II and the dragon riders of Berk. Also, Jack and Percy bonding, because that's a bromance meant to happen!

Next on my updating-schedule is "The Queen of Olympus" for next Wednesday.