A/N: Sorry this is so late! I was really busy and just not feeling inspired. Constructive criticism is welcome! Please review!
Disclaimer: I don't own PJO or HoO or Frozen.
"I'm getting a bad feeling about this," muttered Piper to Leo as they stood atop half-blood hill. Their Roman friends had arrived via Hazel's shadow travel powers (A/N I don't actually think Hazel can shadow travel but lets just pretend she can.) and were standing at the base of the hill. Leo shot a glance down at Hazel and Frank, a couple now, talking to Percy and Annabeth. Jason had brought along Reyna and for some reason Octavian, and they just looked curious, gazing avidly at the cabins, sword arena, and Big House.
Piper still looked worried, "I mean, Percy said that the Romans can build an entire war fort in a day! What do you think they're going to do with five people in twenty minutes?"
Leo looked slightly less confident but still said, "Come on Pipes, do you want to build a snowman?" Piper punched his arm. "Do not quote that movie at me," she ordered, but she was smiling.
Ten minutes later Coach Hedge, the only person available to referee since Chiron had to teach archery class to the Ares cabin, yelled into the megaphone that Leo had unwisely given him for Christmas.
"Alright cupcakes listen up! Here are the rules that Chiron insisted that I enforce: you will have twenty minutes to build ammunition and forts, and devise strategies! The teams will be Greek vs. Roman because Valdez helpfully pointed out that that will be the most violent! I am required to say that non-snow related fighting would result in a penalty. Magical powers and items are allowed! Begin!"
With that Jason, Reyna, Octavian, Hazel, and Frank ran to one side, and Percy, Annabeth, Nico, Piper, and Leo ran to the other.
Annabeth stood at the top of a hill and smiled, the terrain was perfect. They had flipped a coin for higher ground and the Greek team had won, meaning that their fort was currently being constructed at the top of a moderately steep, rocky slope with a frozen stream running down the side of it. The Roman fort was being constructed at the base of the hill. At least, Annabeth hoped it was, since the snowstorm Jason had summoned made it nearly impossible to see anything.
She turned around to watch her team assemble their fort under Leo's instruction. Nico had raised several skeletons to make snow bricks, Percy was using his water powers to move yet more snow and cover the fort in ice, and Piper was making snowballs.
Twenty minutes later the Romans were ready. Their fort was built into the hillside, using some of the huge boulders as part of the walls. They'd sprayed water from the creek on the hill above them to make it harder for the other team to reach them and, parts of the fort even had a roof studded with long icicles to defend against the catapults Leo had surely built.
Their plan was simple, Jason would keep up the snowstorm to decrease visibility while Reyna and Octavian kept the Greeks occupied. Hazel would shadow travel herself, Frank (in the form of an arctic fox), and several snowballs to the back of the hill where Frank would turn into a polar bear and they would charge the fort from the open back. It's perfect, thought Reyna.
At the beginning of the fight, Jason was ready, crouched in a rocky crevice about half way up the hill; close enough to keep the snowstorm completely surrounding the Greek fort without making visibility difficult for his own team. Even through the cloud of swirling snow Camp Half Blood's fort gleamed like a star, a huge semicircle of snow coated completely in ice, thanks to Percy's water powers.
Coach Hedge sent out a piercing blast from his megaphone and the Enemy fort began firing snowballs from over their wall with quick precision. He did his best to deflect as many as possible with storm winds, but they just kept coming. How could the Greeks know where to aim without being able to see?
"Hey Jason," he almost got whiplash turning around as Annabeth took off her invisibility cap and smashed a snowball into his face.
Hazel was worried when the storm died. She and Frank were crouched behind a cluster of boulders, looking up at the back of Camp Half Blood's fort. Annabeth wasn't there but Percy and Nico were building snowballs, and a few feet away Leo and Piper were firing catapults.
She nodded to Frank and he threw the first snowball, hitting Piper neatly in the center of her back. Startled, Nico's defenses were slow as he raised a wall of black stone to cover his remaining teammates. It worked, but not before Hazel's snowball hit him in the leg. Hazel and Frank were about to celebrate their victory when a snowball slammed Frank in the shoulder.
Sadly, he turned into a polar bear and wandered back down the hill while Hazel shadow traveled back down to the Roman encampment. Things were not going well. Jason was out, and so was Reyna, though on the bright side, before her elimination, Reyna had managed to eliminate Annabeth. Octavian was stewing when something bizarre happened.
Leo yelled and sent a flash fire down the slope, melting the snow, which quickly refroze in the frigid air. This was odd in itself but then came Percy, sledding down the hill on a war shield, spinning, screaming and launching snowballs in a totally Percyish fashion.
He managed to hit Octavian, but Hazel ducked, launching her own snowball and miraculously hitting him in the ribs. Now it was just Hazel and Leo facing each other from opposite sides of the hill.
Never one for subtly, Leo charged down the slope, snowball in hand, screaming like a maniac. Hazel raced to meet him waiting for him to come, when he was almost on top of her she dove sideways into his shadow. As he looked around, confused, she reappeared behind him and smacked a snowball into the back of his head.
She smiled, "Romans win."
A/N: So, that was the last chapter since it's only a two shot. I might make a sequel if I get any ideas (hint hint).