A leader in Australian noir, bestselling Scrublands author Chris Hammer is the winner of the Crime Writers’ Association John Creasey (New Blood) Dagger award. In Silver, flawed protagonist Martin Scarsden returns to his hometown to discover his former school friend lying on the floor of his girlfriend’s house with a knife plunged into his back and a postcard in his hand. Chris talks with Guardian Australia’s Paul Daley about his enthralling and propulsive new thriller.