User blog:TheWiseOne/Where'd she go?

In the Battle of the Labyrinth after Annabeth kisses Percy in the volcano, (very strange sentence...) where does she go? She runs out and ... what? I'm confused. I know I should know this, but where did she go? Here's the scene:

 ''Annabeth glared at me like she was going to punch me. And then she did something that surprised me even more. She kissed me. ''

     "Be careful, Seaweed Brain. " She put on her hat and 'vanished. '