Living on the Edge is the 2014 follow-up book to Sam Childers' best-selling Another Man's War, co-written with John Perry, detailing his continued work in East Africa helping orphan children and child-soldiers after his conversion from a life of crime and drug dealing to becoming the "Machine Gun Preacher". The book provides first-person accounts of his ongoing battle to rescue children from horrific lives as child soldiers and sex slaves, offering unedited stories that were not included in his first book.