The Sailor Who Fell from Grace with the Sea - Yukio MishimaPenguin, 1970, Paperback.
Condition: Very Good.
From the cover: “After five years of celibate widowhood, Fusako consummates her two-day relationship with Ryuji, a naval officer self-convinced of his glorious destiny... and they are spied on by Fusako’s son, Noboru, a self-possessed thirteen-year-old, ‘No. 3’ in a sinister elite of precocious schoolboys. Noboru hides his contempt for Ryuji until Ryuji and Fusako get engaged. Then ‘No. 3’ presents a long charge sheet to ‘No. 1’ and, cool and detached, they make plans for Ryuji...”