An investigative team looking into who betrayed Anne Frank and her family in Amsterdam during the Holocaust has signed a book deal.
"Anne Frank: A Cold Case Diary" details the investigation led by former FBI agent Vincent Pankoke and will be published in the summer of 2020, HarperCollins Publishers told The Associated Press on Thursday.
The publisher has acquired world rights to the book, which was among the most talked about at last month's London Book Fair.
Pankoke has been leading an international effort to solve the mystery over how the Jewish family's attic hideout was discovered in 1944.
Anne Frank was sent to Auschwitz and then the Bergen-Belsen concentration camp, where she is believed to have died of typhus the following year, at the age of 15. Her father, Otto, the only survivor in the family, later found her diary, which has been translated into over 60 languages and sold millions of copies.
