After just figuring out that you were a Demigod---or Half-Blood yesterday.

You were walking around Camp Half-Blood, since that was the only safe haven for Demigods. And since you wanted to explore. But after you passed the training arena while walking around camp, you saw a black-haired guy with sea-green eyes, and looked no older than your age.

He was hacking away at the training dummies with a bronze sword at least three feet long. You couldn't deny his sword fighting skills. Every movement was fast but graceful, like moving a paintbrush at a pace.