At Anne Frank's school, more and more seats remained empty. Every day, the same question was on everyone's mind: ‘Who is missing?’ What happened at the Jewish Lyceum?

After invading the Netherlands, the Nazis introduced an ever-increasing list of anti-Jewish measures. The goal was to exclude Jews from society. In 1941 Jewish students were forced to attend separate Jewish schools. Anne and her sister, Margot, went to the new Jewish Lyceum in Amsterdam.

After the summer holidays of 1942, Anne did not return to school. She went into hiding with her family. The Nazis had started to deport Jews to concentration and extermination camps. At the Jewish Lyceum, a growing number of seats in the classroom remained empty. The Jewish Lyceum would not see the end of its second year. The school closed its doors in 1943. There were no students or teachers left. The children either received a call-up for deportation or they went into hiding, like Anne. Others were arrested during one of the many round-ups that the Nazis undertook in order to send all the Jews away.

Of the thirty Jewish students in Anne's class, seventeen were murdered by the Nazis. Most of them were killed immediately upon arrival at Auschwitz and Sobibor. Only three children survived the camps. Nine others survived by going into hiding. Jacqueline van Maarsen, Anne’s friend, survived because her mother managed to get classified as non-Jewish.