In terms of plot, "Black Sheep Astray" is the last in a sequence of near-future stories set in North Africa, which also includes Black Man's Burden (1961-2), Border, Breed nor Birth (1962), and The Best Ye Breed (1978).
Black Sea | Black Forest | Black Sabbath | The Black Eyed Peas | black | Black | Black Death | The Black Keys | black metal | black-and-white | Jack Black | Cilla Black | Creature from the Black Lagoon | Ladysmith Black Mambazo | black comedy | The Black Crowes | Pirates of the Caribbean: The Curse of the Black Pearl | Men in Black | Black Canary | Black people | Black Label Society | Black Hills | Black Rebel Motorcycle Club | Black Panther Party | Black Mountains | Black Country | sheep | Black Watch | Black Swan | Black-crowned Night Heron |