Remorse is the fourth volume revealing the author's moral challenges faced during his thirteen-month tour of duty in the Vietnam War. Ben's response to temptations fueled an accelerating struggle over his values, identity, and spiritual well-being. He was increasingly consumed by emotional turmoil and transformed from naïve innocence to self-doubt and alienated detachment. The stories juxtapose the author's experiences 'between the lines' of letters to his new wife, fluctuating between self-censorship and unfiltered explosions. Ben's correspondence dropped to fifteen letters in contrast to forty-eight sent in his first month, reflecting his withdrawal as he hoped to shield his wife from the truth of his behavior and progressively disturbed mental state. Read 4th Moon: Remorse to follow Ben as he stumbles through a minefield of ethical trials which undermines his strength and precipitates a metamorphosis of spirit.