During the night of your first day at Camp Half-Blood, you stumbled across an outdoor pool. And amidst the water, you witnessed a young man casually breathing underwater as he sat at the bottom; unfazed by the darkness or water.

He eventually glanced up and noticed your astonished expression. Amused by your reaction, he swam above water.

His damp tousled black hair was plastered against his forehead as he chuckled, “Hey there, newbie.”