Final answer:
Elie Wiesel and his father were at Gleiwitz for three days during their imprisonment in the concentration camps discussed in his memoir 'Night'.
Step-by-step explanation:
In the memoir 'Night' by Elie Wiesel, which recounts the harrowing experiences of the author during the Holocaust, Elie and his father were at Gleiwitz for three days before being transported to Buchenwald. The time spent in Gleiwitz was yet another chapter in the series of brutal and inhumane conditions that Eliezer and his father endured in the concentration camps throughout their horrific journey.
Captivated in the evacuation from Buna, they survived an arduous forced march to Gleiwitz, where they faced overcrowded conditions without food or water before their eventual departure on a train to their final concentration camp.