A number of Wiesenthal's books contain conflicting stories and tales, many of which were invented. Several authors, including Segev and British author Guy Walters, feel that Wiesenthal's autobiographies are not reliable sources of information about his life and activities. For example, Wiesenthal would describe two people fighting over one of the lists he had prepared of survivors of the Holocaust; the two look up and recognise each other and have a tearful reunion. In one account it is a man and wife, and in another telling it is two brothers. Wiesenthal's memoirs variously claim he had spent time in as many as eleven concentration camps; the actual number was five. A drawing he made in 1945 that he claimed was a scene he witnessed in Mauthausen had actually been sketched from photos that appeared in "Life" magazine that June. He particularly over-emphasised his role in the capture of Eichmann, claiming that he prevented Veronika Eichmann from having her husband declared dead in 1947, when in fact the declaration was denied by government officials. Wiesenthal said that he had retained his Eichmann file when he sent his research materials to Yad Vashem in 1952; in fact he sent all his materials there, and it was his counterpart, Tuviah Friedman in Vienna, who had retained materials on Eichmann. Isser Harel, director of the Mossad at the time, has stated that Wiesenthal had no role in the capture of Eichmann.