CHICAGO: Award-winning author and journalist Hammour Ziada swoops in on Sudan in “The Drowning.” As a military coup takes over Khartoum in 1968, the agricultural town of Hajar Narti awaits a bleak future while its residents fish out a dead body from the Nile. Ziada’s book has been translated by Paul Starkey and tells the story of the residents of Hajar Narti who have built