Mr. Isaacs by F. Marion Crawford is a novel set in British India, centered around the enigmatic and wealthy protagonist, Mr. Isaacs. The story explores themes of mysticism, cross-cultural encounters, and political intrigue, as the mysterious Mr. Isaacs becomes involved in various adventures. Blending romance, adventure, and philosophical reflections, the novel delves into the complexities of East-West relations and the spiritual influences shaping the characters’ lives.