The Key to Rebecca

" He is known to the Germans as 'Sphinx'. He arrives suddenly in Cairo from out of the desert, armed with a radio set, a lethal blade and a copy of Daphne du Maurier's Rebecca - a ruthless man with a burning, relentless conviction that he will win at all costs. The stakes are high, for the survival of the British campaign in North Africa is in the balance. Only Major William Vandam, an intelligence officer, and the beautiful courtesan Elene can put an end to Sphinx's brilliant clandestine reports of British troop movements and strategic plans."