In August 1944, Anne Frank and her family were captured by the Gestapo and sent to their deaths. This book follows a modern investigation into the case, attempting to discover who betrayed the family.

Less than a year before the end of World War II, on August 4, 1944, Nazi occupiers seized eight Jewish people from a small annex in Amsterdam.

Anne Frank and her family were on board the last train traveling to the Auschwitz concentration camp.

Anne's father, Otto Frank, was the only survivor.

Anne Frank's diary has been read and studied by over 30 million people.

Despite several investigations, it has never been determined exactly how the family's whereabouts became known by the Nazis. Only one thing seems certain — someone betrayed them.

Rosemary Sullivan is a poet, biographer, anthologist, and Professor Emerita at the University of Toronto.

The Betrayal of Anne Frank follows a new investigation into the case, using modern technologies to try and determine how and why the family was betrayed.