They reach the edge of Asti's head, as far as they can go before it becomes a slide down into the ocean. Percy's expression turns as pensive as his voice as he stares out at the water, feeling it pull at him. Calling. He's more aware of it now than ever, the power he has within him.

That he's capable of things he never thought he would be. "You'll stop me, right?" If he screws up too bad. Starts heading down the same path as Luke. He doesn't want to put that on her, but right now he's being realistic enough to know that if the urge to use water in a way it really should never be used comes over him, she's the only one he's going to listen to.