Violet
As I descended deeper into the chasm, the light from the surface dimmed gradually. The pale pink glow of the mineral water shifted to deeper shades of rose, then to something darker still.
I kept my syzygy spread wide around me, sensing the rocky walls that enclosed this vast underwater space. The lake was deeper than I had imagined, and it got a point I started to wonder if it really had an end.
The water grew colder and the light continued to fade.
I swam past rock formations that jutted from the walls like grasping fingers, past crevices and openings that branched off into darkness. The pull in my chest guided me downward, always downward.
The last traces of light disappeared, and I was swimming through absolute blackness.
I couldn't see my own hands in front of my face. Only my syzygy told me the walls were still there, and that I wasn't floating in an endless void.
I kept descending.
The cold intensified, seeping through my clothes and into my bones.
