After the family was forced to move into the Lodz ghetto, Rut attended school in the ghetto. She was in the sixth grade and her homeroom teacher was Miss Lena Kagan, the math teacher. Rut's real hero was her brother Salek. He taught her about literature and poetry and helped her with sciences.

After closing of the schools Rut, who was 13 years old, went to work in a dressmaking factory. She received an additional bowl of soup there. In August 1944, Rut and her family were deported to Auschwitz-Birkenau. Both of her parents and her brother were murdered, but Rut survived and returned to Lodz, where she found out that her grandmother and her uncle had survived.