Instrument of Slaughter - Edward Marston - Bog

January 1916. Britain is on the brink of enforcing conscription. Eligible young men who have not yet signed are despised as 'conchies' and 'shirkers', subjected to hatred and verbal abuse. When a conscientious objector is brutally bludgeoned to death, Scotland Yard detectives Inspector Marmion and Sergeant Keedy are assigned to the case.