Synopsis:
The story focuses on the Traveler, who has just arrived in an island penal colony and is encountering its brutal execution machine for the first time. Everything about the functioning of the intricate machine and its purpose and history is told to him by the Officer. The Soldier and the Condemned, who is unaware that he has been sentenced to die for failing to get up and salute his superior's door each hour during his night watch, placidly watch from nearby.
Under the judicial process associated with the machine, the accused is always assumed to be guilty and is not given a chance to defend himself. As punishment, the law the man has broken is inscribed progressively deeper on his body over a period of 12 hours as he slowly dies from his wounds. During their final six hours in the machine, the accused become still and appear to experience a religious epiphany. The machine was designed by the colony's previous Commandant, of whom the Officer is a devoted supporter. He carries its blueprints with him and is the only person who can decipher them, not allowing anyone else to handle them.
Eventually, it becomes clear that the machine has fallen out of favor since the death of the previous Commandant and the appointment of a successor. The Officer is nostalgic regarding the torture device and the values that were initially associated with it, recalling the crowds that used to attend each execution. Now, he is the last outspoken proponent of the machine, but he strongly believes in its form of justice and the infallibility of the previous Commandant.