This was a really fascinating read! Imagine a future in which the world has been taken over by incredibly aggressive gene-modded plants, humans are on the edge of collapsing below minimum genetic diversity, living in isolated low-tech tribal villages, using the dregs of their old tech to keep the plants at bay and scrape by. Koli finds a piece of tech that both lifts him up and casts him out and through his eyes we get to see both village life and how the rest of the world is coping. I always enjoy Carey's characters and writing style and this is no exception. Recommended! (And a trilogy, so be aware you'll have two more you'll want to read after this one!)