How does the author use the incident of Idek attacking Eliezer in the warehouse advance the plot in Night?
It demonstrates how violence is an ever-present threat for everyone in the camps.
It reveals that Wiesel's time at Buna is growing short, even if he does not yet realize it.
It foreshadows that Idek will betray Eliezer again in the future.
It conveys the idea that certain people are not able to evolve over time.