Fungal engineer Genesis Darrow thinks moving from the agrimune to the corpmune will be a fresh start. Her sleep aid, ShutEye, is an instant hit among the workers, many of whom work as data miners, trading their privacy for housing.
But Genesis is hired for very different work: fusing the company's AI with fungus.
As the corpmune prepares to celebrate its 25th anniversary, though, a strange sound that only Genesis can hear leads her to unravel a conspiracy with deadly consequences.
When her new body changes Iris in expected ways, however, Genesis realizes that she may have created beyond her--or even the corpmune's--control.