Like its predecessor, Gregor and the Prophecy of Bane explores the grim realities of war, violence, and prejudice, intensifying the stakes through bloodshed and moral dilemmas. Boots’s kidnapping demonstrates the immediate dangers of the Underland. Gregor, already traumatized by past events, is consumed by fear, knowing that his baby sister could already be injured or worse. As the story unfolds, the prophecy makes the war’s consequences even more personal when Gregor is forced to consider taking a life: “‘I see,’ said Gregor. But he didn’t. That is, he couldn’t really see himself doing it. Killing the giant white rat. The whole thing was surreal” (123). His primary goal—to slay Bane before the gnawers can kill Boots—establishes conflict as the driving force behind the plot. Unlike battles in the Overland, this battle has no room for compromise. The Underland’s wartime mentality and dark prophecy shape every major decision, creating a central plot where violence isn’t only inevitable but seems fated.

The nature of the quest further reinforces this theme, since each character must endure physical and emotional hardships to survive. Facing tentacle beasts, deadly insects, serpents, and enemy rats, war demands that no one remain passive.