Annabeth slipped and fell on the muddy hill. Percy stopped to help her up, but by then the monster was towering over them.

Percy raised Riptide, supporting Annabeth with his free arm. Leo moved forward and helped Annabeth get her balance back.

Storm clouds circled in, thick, black, blue and purple. Hurricanes of various sizes and strengths touched down around them and the ground trembled beneath their feet.

The monster was at first confused at the new goings-on, but roared in defiance. Percy yelled back and lunged, his powers moving with him.

"Percy!" Annabeth shouted. He didn't hear her.

"Annabeth, run for help. I'll see what I can do." He noticed a glare of stubbornness in her eyes. Annabeth was one to stand and fight. "Celestial bronze might not work on this thing. Look." Leo pointed. Percy had slashed at the monster, having drawn glowing blue blood from its front leg. Other than angering it further, there was little effect. "Go!" Leo conjured up a lighter from his tool belt.

"You owe me!" She shouted over a clap of thunder before turning and sprinting up the hill. She slipped and stumbled a bit but thankfully she disappeared over the hilltop without injury.

Leo looked back at Percy as thunder cracked again. Rain started to fall in thick, heavy torrents, slamming against the ground and their skin with dulls, consecutive and miniature thuds.

Louisa had faced this thing, right?

But how had she done it?

Fire danced across his palms and up his arms. The monster shied away from the flames. Percy looked round and saw Leo. He grinned.

Leo felt quite pleased with himself. He had a Big Three child's approval- a Big Three child that wasn't Louisa.

Another thing that made him pleased with himself was that he now had water proof fire. That was such a massive bonus.

Leo hurled a fireball at the monster, hitting the abomination square in the eye. It shrieked in pain, stumbling back and tearing up the hill.

"Percy, you know that green energy thing you can do?!" Leo shouted over the storm. He saw Percy nodding. "With me then!" Riptide shrunk into pen form and disappeared into Percy's pocket. Leo summoned another fire ball as the minor earthquake subsided. Percy was retracing his energy from the earthquake to create a basketball sized sphere of humming, sea green energy. Together, they threw their powers as if to score three pointers.

Their attempts were joined by a wide volley of arrows and yells from the Ares, Athena and several other cabins. Percy and Leo looked at each other before cheering in delight and charging forward on the tide of adrenalin.

The monster wailed in outrage, stomping its feet angrily. The Athena kids threw lengths of rope over it and pulled the monster to the ground. It struggled greatly and nearly got to its feet. The Ares kids hurled their swords and spears before charging forward and dragging the ropes and the monster back down.

"What is it?" Clarisse bellowed over the storm.

"Don't know!" Percy and Leo shouted back. Clarisse glowered up at the storm as thunder rumbled again.

"Prissy, get rid of it!"

"Can't!" Leo chucked another fiery orb at the beast as it roared. The energy disappeared down its throat. "Nice shot, Leo!" Leo smiled to himself. Yeah, nice shot, Valdez. His smile faltered.

He knew he was going mad, but he didn't expect voices.

Especially not Louisa's…

Can someone do me a favour and read my Percy Jackson meets The First Female Assassin please? It'll be a huge help, PLEASE!? :D