What do the Germans say will happen to the Jews on the train if anyone goes missing? And describe Madame Schachter in three sentences.

They will exterminate everybody in the car if anybody escapes. Madame Schachter had been separated from her husband and two older sons, and she is accompanied by another younger son. She loses her mind during the journey and screams hysterically and repeatedly about a flaming furnace that she apparently sees in the distance. She terrifies the other occupants of the train, and she is repeatedly beaten by young men trying to silence her.