While hiding she used the name "Greetje van den Berg". She was rounded up by Nazi forces on 18 December 1942. Two months later she was transferred to
Camp Vught, then to the transit
Camp Westerbork, and finally deported to
Sobibor extermination camp on 6 April 1943, along with 2,019 other Jewish men, women and children. who was six years her senior. They were able to communicate in German. He helped her survive; for instance, when she contracted
typhus and was weakened, he carried her to the latrines and helped her rest when the guards weren't looking. They crossed
Ukraine by train to
Chernivtsi and to Odessa (
Odesa), and soon left by boat for
Marseille, France. Chaim had to be smuggled aboard the ship, because
Poles were not allowed to go to France. Because of this, Selma was nervous, and couldn't give any breastmilk to her son Emiel. She went to the kitchen, and asked for milk. She was given 'very heavy creamy milk', which she fed to her son. Because of this, the child got ill, and died within 24 hours. His body was buried at sea near
Naxos. From Marseille, the couple travelled north by train to
Zwolle and returned to Selma's parents' home, Hotel Wijnberg, in the Netherlands. ==After the Second World War==