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Percy was the sea, and the sea didn't hold back.
The sea was uncontrolled, untamed, ferocious and powerful.
And Percy was the sea.
His mind had stopped a few seconds ago, when he had seen Thalia bend over in pain, when he had seen the enemies approaching the two demigods.
His mind raged, like raging waves in a stormy sea, calmed, like the center of a cyclone, and shifted, like fault lines in an earthquake.
Riptide was impaled into the ground, while Percy released all of his power with a single, powerful scream.
The earth trembled, broke and the monsters fell, disappeared, fled.
"Percy?"
Thalia's voice was distant.
Percy looked up, seeing the girl approaching with unsteady steps, but a grateful and worried look on her face. "Are you okay?"
Percy nodded, standing on her feet and looking at her cousin's side. "Are you okay?"
"It was just a scratch." Thalia reassured him. "I feel good now."
Percy nodded.
The movement was slow, Thalia's voice was muffled, as if Percy heard it from the depths of the sea.
"Percy...?"
The boy's eyes closed as he fell forward, shocked by the sheer power he had unleashed.
"Thanks for saving my life." Thalia murmured into her cousin's hair, placing his head in her lap and waiting for help to arrive to take them to the Camp.