The writer convey a sense of terror and agonising situation of the factory because the word "Beast" evokes a sense of evilness and powerful , highlighting once-a ordinary place that has fallen into a decay, showing a sense of loss and isolated moment. It's using exclamation mark to foreshadow that something might affect the physiological stress on the reader, the physiological stress on the reader would feel a sense of traumatised and flabbergasted of the extreme scene of the beast, the writer strips away its identify as a building turns to a predatory, dangerous creature. Violence is being presented because "Iron"
Evokes a sense of coldness, unfeeling, and impossible to hurt, It suggests a relentless, industrial power that cannot be reasoned with. The beast is watching Mara as if it want to attack her.