Final answer:
Stevenson reports on the harsh treatment of Duncan Richardson by the prison staff in his novel, revealing the dehumanizing nature of the prison system.
Step-by-step explanation:
In Stevenson's novel, he reports and reveals the lives of the prison staff and how they treated Duncan Richardson. The prison staff is portrayed as harsh and neglectful towards Duncan. They treat him with indifference, providing him with only bread and water and isolating him from other prisoners. This treatment reflects the dehumanizing nature of the prison system and the lack of empathy from the staff.