Diana is a middle-aged, single mother, and hears a voice in her head.
The voice belongs to Moosevan, an immense entity who inhabits a distant planet.
Her world is threatened and she wants Diana's help, but everyone puts the voice down to the menopause. Yuri believes her, though he is usually drunk in charge of a ten-inch reflector and has a bizarre theory about the movement of the asteroids.
Then two cosmic intelligences decide to help. They may understand the Universe; unfortunately the behaviour of mere mortals is beyond them.

Synopsis provided by the author.