It is one of my favorite novel till date. I just love the way Agatha Christie writes the novels, she is one of my author to go for mystery novels.
Her each novel will give you goosebumps at the end and you keep on solving the mysteries by your own but the author just swing the twists perfectly that even you will go woo. You can pick her any novels and get the mysterious feeling, her novels are mostly page turner where you cant resist to keep he novels. Thums up to Agatha Christie for her great work.