In a subterranean, post-apocalyptic world where the life expectancy is less than early 20 s, Deuce, the protagonist in this story, leaves the enclave in search of food for others. At fifteen, she is deemed the Huntress and is paired with Fade, a teenage Hunter. When the two discover that the neighboring enclave has been decimated by tunnel monsters, they run to tell the elders who do not take their warnings seriously. Exiled from the enclave, the balance in the struggle for survival is about to be overturned "