[He can't introduce him to Poseidon, but he can do something else. Percy pushes himself to his feet. Unlike how he would be in the real world, he's soaked. He blinks in surprise and then shakes his hand a little bit; the water flies off him, back into the ocean] Do you wanna walk with me? I can show you my home.

[That's...upsetting, but he tucks it away. He'll find a way to save the turtle. He has to] What about the thing that the Emperor's so scared of? The thing she brought us here to fight, or defeat. Will you get better if we get rid of it?