The patient tells Hana and Caravaggio that in the late 1930s he was exploring a region of the Sahara Desert near the Egyptian-Libyan border. He is revealed to be Hungarian cartographer Count László de Almásy, who was mapping the Sahara as part of a Royal Geographical Society archeological and surveying expedition in Egypt and Libya with a group including his good friend, Englishman Peter Madox. Their expedition is joined by a British couple, Geoffrey and Katharine Clifton, who own a new plane and are to contribute to the aerial survey efforts.