Four travellers stepped ashore at Outer Harbor recently. Behind them was a trip by taxi over the Sahara, through African jungles, and into Mau Mau territory. In all, 7,815 miles with sheath knives as arms. Their names: Mrs. Helen Lyon, an Englishwoman staying at Brighton; her son Malcolm, 22, a student of French at St. Mark's College; Mac Cooper, 24, an Adelaide University graduate who has been studying industrial fermentation in Europe; and Peter Dennett, 23, a jackeroo from Victoria. Here, MALCOLM LYON tells staff writer David Bowman about their astonishing trip across little-known parts of Africa. Hollywood misled us about the Sahara (News (Adelaide, SA : 1923 - 1954), 1953)