Aminatta Forna talks to the award-winning Nigerian novelist Helon Habila about his new book, Oil on Water. She also explores the different ways in which men and women incorporate domesticity in to their fiction, with the help of novelists Louise Doughty and Tim Lott. Plus, a guide to work of Nobel laureate Jose Saramago, who died earlier this year, and whose book The Elephant's Journey has just been published posthumously. Producer: Aasiya Lodhi.