Gnomon

When suspected dissident Diana Hunter dies in custody, it marks the first time a citizen has been killed during an interrogation. Mielikki Neith, a trusted state inspector, is assigned to find out what went wrong. Immersing herself in neural recordings of the interrogation, what she finds isn't Hunter but rather a panorama of characters within Hunter's psyche.

Embedded in the memories of these impossible lives lies a code which Neith must decipher to find out what Hunter is hiding. The staggering consequences of what she finds will reverberate throughout the world.