Earth population: 1.8 billion. In a world already ravaged by climate change, society has become a dystopia of deep fake algorithms, vertical farms and digital totalitarianism. Among the very few remaining free thinkers, a retired extinction ecologist, a marine molecular biologist and a transgender woman accidentally discover a genetic locus that goes back to the origin of life on the planet. Will their discovery help them understand the biggest extinction event that Earth has ever faced? "This is impressing me like no author I've read since Kim Stanley Robinson. Bravo"