Beasts and Burdens (Book 8 of The Warden‪)‬

Fears of dying at the hands of the prison's antiquated equipment are breathed to life when an elevator plummets to the basement, risking the lives of two the warden's staff. With no place left to hide inside or outside of the prison, he is forced to send his most prized employee away until it is safe to return. However, leaving behind one danger may only result in encountering several new dangers.