Determined to elucidate the mysteries of the sulfurous life of her grandmother, Kim Nelson continued his investigations at Istambul. But she became the fiercely coveted key of a treasure and her will to know leads her into increasingly dangerously troubled situations. Ruined and ready to do anything to rebuild a fortune, the adventurer Amin Dorman is convinced that the research carried out by the young and beautiful English aristocrat will lead her to the treasure which the Sultan Murati intended for the Germans on the eve of the First World War. According to him, the secret of it was held by Jade, the favorite intriguing of the despot. To his subtle erotic maneuvers succumbed the grandfather of the young woman and his wife. Kim did not, she, cease to understand what retinent irresistibly retistiblely Lady Nelson to the harem of the sultan. The name of Ebu Sarki mentioned in the intimate journal of Jade, his aieule, constitutes an element of wantlessness of the old time, he returns to the deep truth. Thanks to Malek, she has discovered the enigmatic character of the fact.