death, states that the Nazis murdered her by throwing her onto the train tracks during her last transport to Theresienstadt in April of 1945. Peter van Pels (8 November 192610 May 1945; Hermann and Auguste's son, known as Peter in the diary and Alfred in the first manuscript) died in Mauthausen. Otto Frank had protected him during their period of imprisonment together, as the two men had been assigned to the same work group. Frank later stated that he had urged Peter to hide in Auschwitz and remain behind with him, rather than set out on a forced march, but Peter believed he would have a better chance of survival if he joined the death march out of Auschwitz. Peter and his family moved into the secret annex on July 13 1942. Mauthausen Concentration Camp records indicate that Peter van Pels was registered upon his arrival there on January 25, 1945. Four days later, he was placed in an outdoor labor group, Quarz. On 11 April 1945, Peter was sent to the sick barracks. His exact death date is unknown, but the International Red Cross stated that it was May 10, 1945, five days after Mauthausen was liberated by men from the 11th Armored Division of the U.S. Third Army. He was 18 years old, and was the last member of the group to die while imprisoned. Fritz Pfeffer (30 April 1889 – 20 December 1944; family dentist of Miep Gies and the van Pels, and known as Albert Dussel in the diary) died on 20 December 1944 in Neuengamme concentration camp. His cause of death was listed in the camp records as "enterocolitis", a catch-all term that covered, among other things, dysentery and cholera, both of which were common causes of death in the camps. Of all the stressful relationships precipitated by living in such close proximity with each other for two years, the relationship between Anne and Fritz Pfeffer was one of the most difficult for both, as her diary shows. The helpers Miep Gies saved parts of Anne Frank's book (just like the younger secretary Bep Voskuijl). She later said that if she had read it, she would have needed to destroy it, as it contained a great deal of incriminating information, such as the names of all of the annex helpers, as well as many of their Dutch Underground contacts. She and her husband, Jan, took