24 JANUARY 2004, page 46

Distance Learning

AicIan Hartley Chalbi desert J am in Kenya's Chalbi desert, where temperatures soar to 140 degrees. Out here east of Koobi Fora, the Cradle of Mankind, black volcanic rocks......

Challenge Nigella

Petronella Wyatt I t is time for me to reveal myself in my true colours, as incognito heroines used to say in Georgette Heyer novels or secret agents in Cold War thrillers.......