In Henning Mankell's book "Sidetracked," Ekholm emphasizes the endless nature of revenge, suggesting that the pursuit of retribution can persist indefinitely without any specific timeframe. This concept reflects a deep understanding of human emotions and their capacity to drive individuals toward vengeance, regardless of how much time has passed.

Mankell's work delves into the complexities of revenge killings, illustrating how the desire for vengeance can linger in a person's psyche, sometimes leading to tragic outcomes. Through this exploration, the narrative reveals the darker aspects of human behavior and the often-unending cycle of violence that can stem from unresolved grievances.