Trying to get away from an engagement he had got himself into more or less against his will, Stephen Knight travels to Algiers to visit his old friend Nevill. On the Journey there he meets the charming and beautiful Victoria. She is on her way to Algiers to search for her sister, who had disappeared years ago after marrying an Arab nobleman. With the support of his friend, Stephen Knight decides to help the girl - but when she also disappears, the adventure begins...