Disclaimer: I don't own Percy Jackson or any of the characters, no profit intended from this
There's more time off of school *cheers* so I might write more now :)
As Jason and Piper dodged swords, spears, cannonballs, and fires, Jason realized how athletic a demigod had to be. Jason and Piper were sprinting, jumping, diving, and rolling just to stay alive as they sprinted towards the Big House as fast as they could. The Big House was in sight when a cannonball whizzed past Jason's head. "I swear, I felt the wind of that cannonball!" Jason yelled through all the chaos. He wasn't sure if Piper even heard him through the disastrous chaos behind them. Jason stepped onto the porch of the Big House just as a vial of presumably stolen Greek fire landed where he had just been standing. The Greeks wouldn't have thrown their own weapon at their own building! The ground near the porch burst into green tinted flames that lapped at the edge of the porch. "Good time to leave," Piper decided. She nor Jason wanted to be around when the flames reached the porch. Jason invited himself in, nearly busting down the door. "Grover? What in Hades are you doing? There's a full scale war outside and you're eating tin cans now?" Piper was furious with him. Grover was an odd soul, but didn't he have those wooden thingies that made some magic spells or something? "At least go play your wooden pipe thingies and cast some sort of spell." Grover looked guilty, a tin can halfway into his mouth. Piper had thrown some charmspeak into the last comment, and evidently Jason had noticed. Grover looked reluctant to leave, but a forceful look from Jason was all he needed. He sprinted out the door into the war.
As Jason ran up the stairs like his life depended on it (it did) he barely stopped to look at the creepy taxidermy hanging from the walls. Mr. D's leopard was still there, along with other creepy animals. Piper shuddered at the notion of being in the same room as them for an extended amount of time. Instead, she decided to follow Jason up the wooden stairs. The payphone was in sight, and Jason began to sprint even faster. Dialing the code for Poseidon's underwater palace, Jason remembered another one of Leo's jokes. He would always joke that Poseidon's phone was a seashell, so anyone you called had a seashell phone.
Flashback
"Dude, I've never been to Poseidon's palace, but I swear, they probably have shells down there ringing off the hook. Mortals dial the wrong number all the time, probably. Some merman answers the phone and is like, 'Blub Blub Blub?' The mortal looks at the phone weird and chucks it into the ocean." They laughed for a long time until Percy walked in the door and they did their best to stop their uncontrollable laughter. Percy looked at them like they belonged in a mental hospital, sighed, and walked out the door. Jason and Leo shared a look, then busted out laughing.
End Flashback
Jason sighed, remembering their good times without even realizing that in fact, a merman had actually answered the phone. "I'm looking for a Cyclops named Tyson."
Maybe a few more chapters? I have a good idea for an ending ;)