Prompt: Certainly, I can help you outline an Agatha Christie-style mystery novel in English. Here is a brief plot summary: **Title: \"The Lost Heir\"** **Plot Summary:** The story unfolds in an ancient and dignified estate named Wendell Manor. The wealthy patriarch, Edwin Wendell, suddenly passes away. His will reveals a shocking secret – the heir to the estate is not a member of the family but one of the servants within the manor. As relationships among the residents of the manor become more complex, unusual events begin to occur. A governess goes missing, and the contest for inheritance within the manor intensifies. Lucius Pierce, the manor's butler, investigates the matter. He is a shrewd and reticent individual with secrets of his own. In the process of searching for the missing governess, a series of clues surface, unveiling some previously unknown facts about Edwin Wendell's life. Each person in the manor has a motive, and it seems everyone is concealing something. Lucius Pierce embarks on the investigation, meticulously unraveling the puzzle until finally exposing the truth. The novel will engage readers with twists, misdirection, and intricate family dynamics, leading to an unexpected conclusion. **Character Profiles:** 1. **Edwin Wendell:** Wealthy patriarch, owner of the manor, deceased. 2. **Lucius Pierce:** Manor's butler, astute and enigmatic. 3. **Missing Governess:** A mysterious character whose disappearance triggers the events of the story. 4. **Family Members:** Including Edwin's children and other relatives, each with their own motives and secrets. This plot summary provides a starting point, and you can add more details and twists as needed. Agatha Christie's works are known for intricate plots and surprising conclusions, so feel free to incorporate these elements into your novel. I hope this outline inspires your mystery novel!