“You’ll never win!” the giant groaned. “You cannot defeat me alone.”
“I’m not alone.” Percy raised the stone head above the giant’s face. “I’d like you to meet my friend Terminus. He’s a god!”
Too late, awareness and fear dawned in the giant’s face. Percy smashed the god’s head as hard as he could into the Polybotes’s nose, and the giant dissolved, crumbling into a steaming heap of seaweed, reptile skin, and poisonous muck.
Percy staggered away, completely exhausted.

The Son of Neptune, Chapter L