“They want us to surrender,” the boyish voice says. He speaks urgently, the din of a prison behind him. “It’s probably the last time I’m going to call you.”
And so it proved. That voice note, sent on the afternoon of 26 January, was the last his family ever heard from Yusuf Zahab, an Australian teenager caught in the middle of a deadly Islamic State attack in January on the prison where he was being held with 750 other boys, none ever charged with a crime.
