On either side of the moonlit path was the water, navy blue in the darkness. Land was a distant line of brilliant lights, the etched shadow of mountains against the sky. And below was ocean, miles of ocean, and Emma felt the familiar cold of fear, like a block of ice applied suddenly to the back of her neck and spreading through her veins.
Miles of ocean, and oh, the vastness of it, shadows and salt, fierce dark water filled with alien emptiness and the monsters that lived there. Imagine falling into that water and knowing it was below you, even as you treaded water, desperately trying to remain on the surface; the terror of the realization of what was under you—miles and miles of nothingness and monsters, blackness stretching away everywhere and the sea floor so far below—would tear your mind apart.