Madness string 95095

Random mermaid
It came from between the folds of time and space and worlds and light and dark. Something that is but should not be slipped in and called out to them as their god, and they believed it, and they tasted it, and touched it, and laid with it, and became its property and did its will, and IT IS STILL HERE.

This illustration depicts the protagonist, having been newly transformed into a water baby, learning from a salmon and his wife of the existence of other water babies.