A huge international corporation has developed a facility along the Juan de Fuca Ridge at the bottom of the Pacific Ocean to exploit geothermal power. They send a bio-engineered crew - people who have been altered to withstand the pressure and breathe the seawater - down to live and work in this weird, fertile undersea darkness.

It's the eve of the 22nd century: a world where the dearly departed send postcards back from Heaven and evangelicals make scientific breakthroughs by speaking in tongues; where genetically engineered vampires solve problems intractable to baseline humans. And it's all under surveillance by an alien presence. Daniel Bruks is a field biologist in a world where biology has turned computational.

Tom Dreyfus is a Prefect, a law enforcement officer with the Panoply. His beat is the multifaceted utopian society of the Glitter Band, that vast swirl of space habitats orbiting the planet Yellowstone, the teeming hub of a human interstellar empire spanning many worlds. His current case: investigating a murderous attack against one of the habitats that left 900 people dead, a crime that appalls even a hardened cop like Dreyfus.

Humanity is a dying breed, utterly reliant on artificial labor and service. When a domesticated robot gets a nasty little idea downloaded into its core programming, they murder their owner. The robot discovers they can also do something else they never did before: They can run away. Fleeing the household they enter a wider world they never knew existed, where the age-old hierarchy of humans at the top is disintegrating into ruins and an entire robot ecosystem devoted to human wellbeing is having to find a new purpose.

Rumors begin to spread of a species of hyperintelligent, dangerous octopus that may have developed its own language and culture. Marine biologist Dr. Ha Nguyen, who has spent her life researching cephalopod intelligence, will do anything for the chance to study them. The transnational tech corporation DIANIMA has sealed the remote Con Dao Archipelago, where the octopuses were discovered, off from the world. Dr. Nguyen joins DIANIMA’s team on the islands: a battle-scarred security agent and the world’s first android.