The extraordinary story of Bep Voskuijl, Anne Frank’s closest friend during the 761 days she spent in the Secret Annex. Bep Voskuijl was just twenty-three when the Franks went into hiding and she risked her life to protect them, sourcing food and medicine under the noses of German soldiers and Dutch spies. But while Bep’s friendship with Anne blossomed, Bep’s sister Nelly – whose name was scrubbed from Anne’s published diary – was collaborating with the Nazis.

Long after the war, haunted by the loss of Anne, Bep is unable to put to rest the horrifying suspicion that she had been betrayed by her own flesh and blood. Written by Bep’s son, The Last Secret of the Secret Annex is a captivating story of heroism, betrayal and the devastating, destructive power of a secret.