Tuesday, November 5th, 17:00. It was after a long trip we took to Lake Toba in North Sumatra, Indonesia. The lake was undoubtedly wonderful. The dark blue water was calm like keeping a magical secret in its depth. And anyone who saw the lake could tell it was deep, the deepest lake in the world.

I had just finished showering and was ready to hit the bed when I saw a glimpse of my reflection in the bathroom mirror. It felt different. So I looked closely.

The reflection was the picture of a girl, wrapped in a blue babydoll dress, her feet dangling in the air like she was flying. No, not flying. She was drowning,...