The Greater Good is the latest volume of the Ciaphas Cain series. Set in the Warhammer 40K universe, it follows the adventures of the titular Commissar. Ostensibly a political officer, Ciaphas Cain is a somewhat cowardly figure who continually finds himself in horrifically dangerous situations against the Imperium's worst enemies.

    Managing to survive through a combination of luck and a keenly-honed sense of self-preservation, Cain finds himself with a most...