"They live in a world of flickered mirage, in the fractal sheerings of Bahamian light dancing on bright sand in shallow water.
In a place without shade, they are shadows: You see them when they are not there, and when they are, you do not.
They arrive silent as thought, hesitant, shimmering, almost invisible, for the sunlight itself seems to pass through them, cleaving itself into rippling shards that refract around the swimming fish, disolving their individual shapes into an abstraction of the water itself.
When you do see them, always it is just a moment after you have sensed them, as if you suddenly remembered that they were there.
Coming this way.
Shadows on the flats."