Mycelium Seep

Khalek is a teenage boy who lives in an underground city, the denizens of which manufacture their food from roots that penetrate downwards from above ground.

When he discovers a disease inflicting their main food source a series of events leads to the merging of his mind with that of Laura - A vehicle designer from present day earth.

The population in Khalek's world are barred from visiting the planet's surface, which is controlled by A xenophobic race of humanoids. The Humanoids communicate ...