This story is an idea that just popped into my head. It involves multiple fandoms that I don't own. I also don't know if I should do short or long chapters. Hope you enjoy it!

Camp-Half blood

Percy stood next to the others of the seven as they stared at Gaia. Percy pulled Riptide out of his pocket and uncapped it. The celestial bronze blade hummed with the power of the sea, and the life essence of the Huntress. His eyes glowed a bright sea-green color and his hair whipped in the wind. The sea that was near the battlefield was becoming restless.

Annabeth stood to Percy's right. She unsheathed her bone dagger. Her hair was tied up, and her eyes were alive with grief. As she got into a fighting stance she remembered the sacrifices of both Bob and Damasen. She closed her eyes and breathed before opening them and stealing her face to a look of rage.

Piper stood next to Annabeth and took out her dagger as well. She glanced over at Jason who nodded at her and readied herself by getting herself into a similar stance as Annabeth. Her eyes glowed even more kaleidoscope like than before. Leo stood next to Piper and took his hammer out of his toolbelt. His eyes literally burned like fire. He lit his hammer on fire and began to check if he had all of his tools in his belt.

Jason stood on Percy's left. He took out Hera's sword and brandished it. His eyes were alight with electricity. Lightning began striking random parts of the battlefield. Electricity ran along his body across his fingers and down his blade. The wind started picking up and random monsters were being thrown around.

Frank stood to Jason's left. He pulled his spear out and glowed red with the rage of Mars. His eyes were red. He started murmuring words in latin. Hazel was to Frank's right and she pulled out her Spatha. Arion had just been flung away by Gaia and she was furious. Gems and different metals started appearing in the ground around her.

"You are fighting a battle you cannot win Perseus Jackson"

"I do not care Gaia. I will destroy you."

"How? You have no gods behind you. You cannot kill me!"

"Then we die trying." Water rushed towards Percy from behind and engulfed him before shooting him forward. He flew at Gaia with the water pushing as fast as it could. As his sword was about to drive itself in Gaia's heart, she sunk into the ground and Percy went flying behind her.

Annabeth ran at Gaia next and every time the daughter of Athena threw a blow at Gaia it was immediately blocked. In only a few seconds Annabeth had been thrown back into a wall.

"Jason and Leo ran towards Gaia together and combining both the lightning and fire shot a burst at Gaia. She was caught off guard and was hit by it. She stumbled back and Jason ran forward and thrust his sword at her. Leo came at her from the other side but instead of gaining the upper hand one on one, she grew another arm made of earth and blocked his strikes.

Hazel ran towards Annabeth to see if she was okay. Annabeth was barely conscious but she was alive. After she checked on Annabeth Hazel ran at Gaia to attack her. Gaia once again formed a hand made of dirt and shot it towards Hazel. Hazel wasn't paying attention to it and it caught her in the stomach, punching a hole right through her stomach. Her insides were now outsides. Gaia then hardened the arm and let it be cut off by Jason.

Frank ran to Hazel and caught her as she fell. She had died instantly. Frank roared and turned into an elephant before charging at Gaia. Gaia just swatted him away like he was nothing. Under Leo a hole formed and he fell in. The only thing left above ground was his head. The ground quickly closed and he was decapitated.

Percy pushed himself off the ground with riptide and approached the open side of Gaia. As he walked he saw Hazel with a hole in her stomach and Leo's head. As he reached Gaia he began fighting. Annabeth had now recovered, as had Frank. They both made their way towards Gaia and Helped Percy and Jason. Gaia punched the ground and everyone got thrown back. Gaia stalked towards Jason and said,

"So, you are the right hand man of the Greatest hero of all time. A son of Jupiter, Ironic." She reached down, grabbed Jason's sword and impaled his own sword through his chest. She then moved on to Frank. She picked up Mars's spear and laughed.

"To think Mars could spawn something so weak. You disgrace your family." She snapped the spear before shoving both halves into each of his eyes. Gaia moved onto Annabeth. Percy was now awake and struggling to get up.

"Daughter of Athena, fated to love a son of Poseidon. It never would've lasted." She siphoned some of the dirt off of herself and used it to suffocate Annabeth. Percy, who was completely out of it and not registering anything, walked behind Gaia and took riptide, and drove it through her stomach..

"I told you that you will die." Gaia elbowed Percy in the face and slid herself off of riptide. She twirled riptide a little bit before throwing it to the ground. She grabbed Percy by the back of the neck and showed him the sky.

"Look little hero. It's the huntress. I heard it's your favorite constellation. You will die and she will get to watch your failure." Percy looked up at the stars and saw her, the Huntress. As he was about to give up hope he heard a voice in his head that sounded very familiar.

"Percy, you are the sea, the oceans, every drop of water on the planet is at your disposal. The sea flows through you, as it does every living thing. Even the earth." The voice said. But after that the voice continued but said something he had never heard before, "Perseus Jackson, Bane of Ares, Bane of the Titans, Prince of the Sea, Bane of Tartarous, Friend of the Huntress, and Seaweed Brain. You are the most powerful demigod in existence. Use that power. I will help you kill her."

Percy felt a weight in his pockets. He smiled and closed his eyes. He felt the ocean and sea around him. He felt the water in the ground. He felt the water in Gaia. He focused on the water in Gaia and ripped it out of her. Gaia fell backwards as holes began appearing in her body. Percy turned around and held his hand out. A ball of all the water began forming in front of his hand. He then splashed it on his face. He instantly felt refreshed and reenergized.

He took riptide out of his pocket and rushed forward. As he was doing this he was calling the water from the ground to hold her in place as he made tendrils of water swirl around her sword. He ran at Gaia and once again drove his sword through her heart. This time she couldn't move. She stood in place and was screaming in pain as the water around the sword continued to twist the sword. The water was also expanding and rapidly healing her over and over again.

"This time you will die Gaia."

"How...you have...no gods." She managed to sputter back.

"Then you may not die but you will stand here until Atlas can no longer hold up the sky."

"You wouldn't d-" She was cut off by an arrow to the face. Percy looked all around trying to look for a source and finally found one. An eight year old little girl walked towards him and began talking.

"You did well Perseus. I am sorry for your losses." Percy finally regained some mental stability and looked around. He saw all his friends dead. He lost it and screamed. The water in Gaia exploded and she was blown to bits.

"How did you know I was here Lady Artemis?"

"Other than the powersurge that your father felt, I was sent a message from a mysterious person."

"So did I."

"Come Perseus we will discuss this later. Right now the olympians are having a meeting and you are required to attend." She grabbed Percy's shoulder and they flashed to Olympus.