Prologue

Disclaimer: I do not own Percy Jackson and the Olympians or The Heroes of Olympus, by Rick Riordan, or Supernatural. I'm not that creative or talented. Please read Author's Note at bottom.

"Unicorn!" a small girl screamed, staring at the startled white horse.

"Yay!" another cried beside her, clapping her small hands together with glee. "Whets ride it!"

The pale unicorn whinnied, a frightened expression in its eyes as it turned and galloped off. The toddlers didn't seem to mind much, though, as they joyfully chased after the beast, their sequels echoing through New Athens.

Annabeth Chase watched on from a distance in amusement, smiling as the two girls stumbled across the pavilion. Having unicorns around was still a bit of a shock, as no one really believed they existed until Camp Jupiter offered a few as a symbol of peace; teaching the Greeks how to use their horns for medical purposes. Camp Half-Blood, in turn, taught the Romans how to ride Pegasi and to use them in battle.

In fact, since both camps had established a peaceful co-existence, they had exchanged many ideas and tactics, as well as created lasting friendships. One such idea Annabeth had taken away was a Greek version of Camp Jupiter's New Rome; a small city she and the Camp had named "New Athens". Just as New Rome was a place where Roman half-bloods could leave peaceful for the rest of their lives, New Athens became an optional safe haven for older Greek demigods.

Its construction begin not long after the Second Giant War, soon after the Greeks and Romans made their peace (and after the Romans nearly burnt down the entire camp). After five long years, it was still expanding and being put together, Annabeth collaborating with the Roman builders on its designs and many buildings.

Annabeth had rarely gotten a decent night's sleep. Being the official architect of Olympus, working on new designs and ideas for New Athens, and still working on new cabins for Camp Half-Blood had so far been a draining and tiring experience.

And she had to admit, she loved every minute of it. Creating new schematics and blueprints helped her take her mind off everything else around her, and everything that had happened. Basic meaning: it helped her to hold it all together and not completely brake down multiple times a day. The pain had dulled and the nightmares had become slightly less frequent, but the pain was still there.

She'd learned to shove the memories into the very back of her mind, constructing a thick and sturdy wall to hold them at bay. During the day, she kept her mind occupied by her work and immersing herself in her friends. But at night, no matter how much she denied it, the past still haunted her. The monsters of Tartarus still hunted her, and Gaia continued to taunt her.

Annabeth sighed, shaking the thoughts from her head. She would not let the scars show. She was Annabeth Chase, daughter of Athena, Hero of Olympus, the leader of Camp Half-Blood. People looked up to her, asked her for advice. She'd endured the worst that any Half-Blood could face and come out the other end alive. She was a survivor, and it was her duty to be strong. She wouldn't be broken.

"Come on Blackjack," she said, patting the black pegasi's muscled shoulder, "I promised we'd welcome in some new families." Blackjack whinnied, and Annabeth once again found herself wishing she could understand him. He ruffled his feathers, forcing himself into a gallop as he made his way down Half-Blood Hill, Dashing towards the shining marble of New Athens in the distance.

The city was at the other end of Camp, to the West across the new property lines. Annabeth and Blackjack swiftly passed through the near entirety of the valley, passing waving campers and playing children as they neared the Gateway.

Blackjack slowed as they neared the two giant, 15 foot celestial bronze statues guarding the city's entrance. Both had been secretly made by the Hephaestus cabin after the war was over, and each depicted a demigod sitting atop a rearing pegasus, the horse's wings meeting in the middle to form somewhat of an arch. The one on the right was Annabeth herself, her dagger at her side with her laptop case slung over her shoulder. An owl perched on her case, staring out across the hills. She wore a wide grin, her hair curling in the wind. It was truly an amazing sight, but in Annabeth's mind, nothing compared to the one next to it; mainly because of her insistence of personally adding to it.

Resting to the left was Percy's immortalized glory. He was riding Blackjack, Riptide brandished and held out as if in the midst of battle, as well as a replica of Tyson's shield hanging on his left arm. Waves curled around the Pegasi's hind legs. A bronze minotaur horn hung at Blackjack's side. Percy showed off a large smile as well, warming to his friends and daring to his enemies. At the base of both Pegasi's hooves lay tokens of their shared quests: Zeus's Master Bolt, the Golden Fleece, Artemis's bow, a small model of the labyrinth, the Empire State Building, and quite a few more.

Sighing, she painfully motioned Blackjack over to the towering monument to Percy, stopping at its base to stare at the golden plaque. Well, on each there was multiple plaques around the mammoth rectangular base, each describing certain quests, events and displaying a small bio. Yet this wasn't even the true memorial; Annabeth was still working on a special plan for that one.

Annabeth took a short moment to hop off Blackjack's back and stare up at the statue. It was a painful sight; one that constantly reminded her of the loss she had been force to endure. Yet it also spoke of a hope, a reminder of a promise.

She took out her necklace, running a finger over the bright coral pendent Percy had given her as a present during their early time as a couple. "Alright, Seaweed Brain. You promised me. You promised you'd find a way. Well, it's been five years, and I promise you I'm still waiting."

A/N: Hey guys! If you're reading this, thanks for surviving the first chapter! This story is a work in progress, with my ideas usually coming up as I go. Constructive criticism is welcomed, and notice I say constructive. Please be kind, this is my first story :). I'll probably edit this story a lot as I go along. I'm not quite sure yet how far I'll go into the Supernatural crossover, since this is mainly Percy Jackson. Please review! Again, thanks for reading, and if you made it to the end of this, here's an invisible blue cookie!