Near the end of "Radium," John Enger's compelling debut novel, narrator Jim Quinn recalls the story of Unlucky Luke, a farm boy who, during a midnight sprint at a barracks stop en route to military Basic Training, gets out front, trips on a tree root and is subsequently trampled by 50-some recruits who can't see him in the darkness. Never reaching boot camp, Luke is not technically a soldier and so doesn't qualify for disability. He returns to Radium with crippling back pain and a dead-end job.