Sunblind

Twelve thousand people live in the Bore, a vertical city drilled seven levels into the earth, convinced the surface is a death sentence. Johanna Richter, a pipe-fitter on Level Five, never questioned the story—until her mentor died under suspicious circumstances and left behind a map to places that shouldn't exist. Now Johanna must descend to the deepest, most restricted level of the underground city, pursued by a security chief who will kill to protect the Council's secrets. What she finds at the bottom will change everything she believes about the world above.