I've been listening to the books the Silo series on Apple TV is based on
The first book is called Wool and second is Shift. I've really enjoyed them so far.
It's about a post-apocalyptic society who live in a massive underground silo. The sheriff of the place elects to go "outside" which is essentially a death sentence as the outside it a toxic wasteland (or is it?). The story then follows a woman on the bottom floor (floor 144 (about a mile underground)) who runs the mechanical generator maintaining electricity for the whole "city." She's chosen as sheriff and uncovers a huge mystery surrounding the sheriff's death. Lots of interesting world building and mystery as you learn more about the silo. Highly recommend.
Silo is a series of post-apocalyptic science fiction books by American writer Hugh Howey. The series started in 2011 with the short story "Wool", which was later published together with four sequel novellas as a novel with the same name. Along with Wool, the series consists of Shift, Dust, three...