It’s the Australian Mystery Writers’ Festival and debut author Ernest Cunningham is one of the participating writers. Cunningham arrives at the festival—hosted on the Ghan, the famous train that goes from Darwin to Adelaide—following the publication of his memoir Everyone in My Family Has Killed Someone (also, the title of author Benjamin Stevenson’s novel that first introduces Cunningham) and is, having signed a six-figure advance, now stuck trying to find an idea for a novel.