Beacon 23: The Complete Novel, takes us to the far edge of Sector 8 to Beacon 23. A lighthouse that allows space ships to navigate each sector at speeds faster than light. Without the Beacon such travel becomes catastrophic. Our hero, Digger, is alone with his thoughts and memories after serving in the front lines as a soldier. He has a bad case of PTSD. The story is deeper than most SF, but it is an engaging story with plenty of action. Howey does his usual good job of character development- you really feel for Digger; laughing and crying along with him. The book is a little dark but not unduly so.