Sebastian Barry's latest novel is a narrative of disintegration and self-destruction, written in the most lyrical of language.
James McNulty is the latest protagonist from a family whose shop-soiled lives have preoccupied the Irish author for three books now. He's a spectacularly failed husband.
Domesticity and fidelity perplex him; he's more at ease with moments of trauma or drama: torpedoed ship; bodies shredded by a terrorist attack.
As a bomb disposal specialist in World War II, with a temporary officer's rank (hence the title) and then a UN observer in Africa, he's known many such crises. Now it's the 1950s, and he's in Accra, "lurking like a broken-down missionary" among its concussive rains, furnace heat and casual violence.
He's writing - a record of his marriage to Mai, "as alive as any human being ever was, radiating simple joy". She's a wife more devoted, more beautiful than he ever hoped for. So, quite casually, even lovingly, he wastes her money, turns her into an alcoholic, lies to her, betrays her, finally abandons her and their two children.