Heroes of Olympus H2O: Just Add Water Crossover

by softballcrazyoh

After the Giant War ended, Percy Jackson, Annabeth Chase, Jason Grace, and Piper McLean decide they need a vacation. They needed a break from all the monsters, so they decide to go to Australia, the only place the gods have never been in power. During their time there, they meet some interesting girls that might just introduce a whole new problem to their hero to-do list.

10. Siren

Once on the shore, they were greeted by Argus.

"Hey, Argus. How did you get here? Never mind. Are you here to show us our new house?" Percy asked. Argus nodded. Then he started walking down the beach, all four demigods in tow. The girls had gone home since it was getting late. Eventually, Argus stopped in front of a huge beach house. Percy's eyes almost bulged out of his head as he ran in to look around. The demigods all went back to the resort and checked out. Then they brought all of their stuff to their new house. Percy and Annabeth shared a room because they still couldn't bear to sleep apart since Tartarus. Piper and Jason had their own rooms, much to the dismay of Aphrodite. Piper was fine with it though. She wasn't ready to sleep in the same bed as Jason. They hadn't gone through what Percy and Annabeth had.

That night, Annabeth got in the bath to wash off all of the seawater. She stepped into the bathwater and her legs shimmered and turned into her bright orange tail.

"This is going to be hard to wash," Annabeth thought. Then she absent-mindedly started to sing as she awkwardly tried to wash her tail. She wasn't singing words, just a beautiful string of notes as they came to her mind. But she noticed that her voice sounded different than usual. Then Annabeth heard a banging on the door, and Percy and Jason walked in. Their eyes were glazed over and they didn't look to be in control of their bodies. Piper came in, trailing Jason, with a confused look on her face. Annabeth stopped singing abruptly.

"Jason?" Piper questioned wearily. The boys shook their heads and seemed to snap out of their trance.

"What am I doing here?" Percy asked in bewilderment.

"I want to know the same thing," Annabeth agreed.

Piper frowned and turned to Annabeth. "What were you just doing?"

Realization dawned on Annabeth's face. "Singing." Jason frowned but Percy seemed to understand.

"Like the Sirens," Percy said dreadfully. Sadness filled Annabeth's eyes. She was remembering her and Percy's time in the Sea of Monsters.

"Why is this a bad thing?" Piper questioned. "You found your mermaid power!"

Annabeth frowned. "But Rikki said that their powers all had to do with water."

"Maybe with you being a demigod, your power is different?" Jason suggested.

"Must be," Annabeth concluded. "Now everyone out! I have to finish my bath."