A Hungarian police inspector knocks on the window to warn Wiesel’s family to escape before the Nazis come and take them to a concentration camp.
When Wiesel and his family know they will be forced to move, and their possessions “had to be handed over to the authorities, under penalty of death” (p. 11). The family lives in Serpent Street, which is in the first ghetto, so they are able to stay in their house and take in relatives. Then, they are forced to leave the large ghetto and sent to the smaller one, where the people have mysteriously left. One night, there is a knocking on the door.
Suddenly, Batia Reich, a relative who lived with us, entered the room: “Someone is knocking at the sealed window, the one that faces outside.” (p. 14)
Later, Wiesel finds out who knocked. It was an “inspector of the Hungarian police” who is a friend of his father’s. He knew what was happening and tried to warn them.