her father kept them through the war and published them after her death, when the war had finished.

I think Anne left it where they were hiding, Miep gave it to otto Anne's father when he returned after the war I think

According to http://www.kirjasto.sci.fi/annefran.htm Otto Frank's secretary Miep Gies, who had searched the hiding place, gave Otto Frank the diary after the war. It was published in 1947 as HET ACHTERHUIS. =========== I have been into the hiding place...the pictures of Anna's film idols are still on the walls...hearbreaking.

Otto Frank survived and returned to Amsterdam. He was informed that his wife had died and his daughters had been transferred to Bergen-Belsen. Although he remained hopeful that they had survived, the Red Cross in July 1945 confirmed the deaths of Anne and Margot. It was only then that Miep Gies gave him the diary. Otto read it and later commented that he had not realized Anne had kept such an accurate and well-written record of their time together. Moved by her repeated wish to be an author, he began to consider having it published. When asked many years later to recall his first reaction he said simply, "I never knew my little Anne was so deep". Anne's diary began as a private expression of her thoughts and she wrote several times that she would never allow anyone to read it. She candidly described her life, her family and companions, and their situation, while beginning to recognize her ambition to write fiction for publication. In the spring of 1944, she heard a radio broadcast by Gerrit Bolkestein—a member of the Dutch government in exile—who said that when the war ended, he would create a public record of the Dutch people's oppression under German occupation. He mentioned the publication of letters and diaries, and Anne decided to submit her work when the time came. She began editing her writing, removing sections and rewriting others, with the view to publication. Her original notebook was supplemented by additional notebooks and loose-leaf sheets of paper. She created pseudonyms for the members of the household and the helpers. The van Pels family became Hermann, Petronella, and Peter van Daan, and Fritz Pfeffer became Albert Düssell. Otto Frank used her original diary, known as "version A", and her edited version, known as "version B", to produce the first version for publication. He removed certain passages, most notably those which referred to his wife in unflattering terms, and sections that discussed Anne's growing sexuality. Although he restored the true identities of his own family, he retained all of the other pseudonyms. # http://en.wikipedia.org/wiki/Anne_Frank#Publication_of_the_diary