Nobody saw it arrive.
It is a sleek, silver disc, inhabited by two of the fleet’s most decorated soldiers. It is an alien ship, fully equipped with the latest and most sophisticated otherworld technology. It has entered a new region. As a craft, its military capabilities are phenomenal. Slowly, it lowers towards a truly vast expanse of sea. It settles noiselessly on the surface. The craft floats silently on a frothy sea. The water looks murky. Great bubbles slide around on its surface. The occupants arm themselves and open the main hatch.
Moments later the two indescribably ugly aliens emerge. The saucer rocks gently on the surface as they stagger out onto the railed observation deck built into the edge of the craft. They each make notes on what they are seeing, on their hand-held report pads.
Momentarily the sky grows dark.
The woman returns to the kitchen, notices that she hasn’t emptied the sink after washing up and pulls the plug. She doesn’t notice the tiny disc swirling around and disappearing down the plughole. She doesn’t hear the strange screams, screams that are being drowned out by the familiar gurgling of the emptying sink.
Nobody saw it leave.