An artificial intelligence programmed to monitor an underground biological preserve on a distant and inhospitable moon awakes from a forced shutdown only to discover that all of the base's human workers have disappeared. As its disembodied gaze wanders through the installation's empty greenhouses and searches through the crew's logs for something that could explain their sudden departure, the boundaries between nature and the artificial, mind and programming, waking and dreaming begin to blur, until a vision of our future emerges, one where we have been freed from the constraints of our biology, and where our digital ghosts haunt hallucinogenic reproductions of a lost Earth