The main character of the novel is the English Duke Graham Caldwell. As a child, he was captured and captive by an Egyptian tribe. Only in adulthood did he manage to escape to England, where he immediately declared his rights to the inheritance. In his dreams, he is haunted by the image of a red-haired, green-eyed beauty. The girl in a blonde wig whom he chooses in a chic brothel turns out to be the woman of his dreams in the morning. Later he sees her at a party. This is Gillian, the daughter of his worst enemy. She is hiding in a brothel from her father, who wants to marry her off in an arranged marriage. Graham falls in love with Gillian and realizes that by marrying her, he will take revenge on his enemy. To carry out his revenge plan, the Duke must return to the desert, where he is known as one of the Khamsin warriors, nicknamed Cheetah. Gillian does not want to leave her husband and goes with him to Egypt to look for treasures buried in the sand.