Does anyone have any idea's for a static image on The boy in the striped pyjama's?

The image of the gas chamber might be an example of a static image in the novel.  The idea of the gas chamber is one image or concept that does not change throughout the novel.  Bruno undergoes a change in voyaging to the other side of the fence.  Shmuel undergoes a change in that he finds a friend to whom he can turn when he is confronted with the sad and fearful condition of searching for his father.  Both boys change because they essentially die for their friendship.  The gas chamber is static because it undergoes no change.  It is the non changing end, the representation of the final solution for millions of Jewish individuals targeted and millions of other individuals through no fault of their own were deemed as "enemies of the Reich."  Within all this change, the gas chamber is static, and continues to do what it does throughout.