What happened in the camps in the book devils arithmetic?

In "The Devil's Arithmetic," the protagonist Hannah, who is transported back in time to a World War II-era Jewish village, experiences the horrors of the concentration camps firsthand. The Jewish community is rounded up and taken to a camp, where they face dehumanization, forced labor, and the constant threat of death. Hannah witnesses the brutality and loss of life, which deepens her understanding of her heritage and the importance of remembrance. The narrative emphasizes the significance of remembering the past to honor those who suffered.