The tower was a living creature of some sort. We were descending into an organism.
An extract from Annihilation by Jeff Vandermeer
As I wandered through the darkened spaces, my sense of place began to fall away... was I moving up, through or down? As my observations of the Urpflanze, the Urform and Amorphous grew, the walls began to fall away, I sensed the space open up into a vast blackness without edges, without ceiling or floor; a space lacking in orientation...
