Its known to every one that Agatha Christie is a Mystery Queen . The story is about a young boy and girl ; I believe not
more than thirty; accidently land up in an investigation of a murder ( the dying man says only five words "Why didn't they ask Evans") to which they are not related to. Neither they are detective nor police.
A hint that the hero of novel might be in danger ; he is poisoned with morphia with more than 9 times a normal dose ; he survives .The leading lady fakes an accident reaches the villains house and falls for charisma of villain ; tells him the truth . Villian is as we all don't expect is kind of laid back character with not much of finances ; lives life fullest. There is a Doctor who is psycho ; a wife (beautiful, seductive and scared).
The mystery of the five words takes them back to their own place and.........much more. A thrilled journey in 200 pages. Worth a complete read...............