Where light still rules. Warmth, colour, and the familiar blue you can swim back up into.
The last of the sun. Colour drains away until only a single, bruised blue remains.
No sun has ever reached here. The only light left is the light that is alive.
Crushing. Freezing. Eternal dark — pressure that would fold steel like paper.
The bottom of the world. Eleven kilometres down — and even here, in one small circle of light, life still holds on.