If you enjoy reading mystery novels of the "cozy" genre, like those by Agatha Christie and Ngaio Marsh, you'll love this book. But to me, this novel, published in 1950, exemplifies everything I dislike about the cozy genre.
Things I dislike about the cozy genre of mystery novels (with apologies to the many people who enjoy these books):
1. It's actually a romance novel -- though a very prim romance novel -- disguised as a mystery. (Note: if my library copy had come with the cover shown above, I probably would have known this wasn't the book for me. Sometimes you CAN judge a book by its cover).
2. The intelligence of the pre-WW2 mysteries has been replaced by sentimentality, and the author focuses less on the puzzle and more on "characterization", which usually means coming up with some quirky locals to try to differentiate this book from all others just like it.
3. Because it's a sentimental romance disguised as a mystery, you can usually narrow down who-done-it within the first few chapters: there will be a sweet young couple, modest and moral, with a budding romance. One, or both, will be framed or appear guilty due to circumstances. They will spend a large chunk of the text selflessly protecting each other from being found out, even though they know the other isn't guilty. As soon as you meet the young people in love, you can be ABSOLUTELY CERTAIN that they are not the culprits, just suspects.
4. Even though the novel is sure to have a twist or two way at the end, you can usually figure out who did in the first chapters once you've narrowed down that it isn't our young lovers or the other stock characters outlined below. Key rule: no one you like (or who likes our young lovers) is the murderer.
Other stock characters:
A. The eccentric rich person, disliked by many people; often ends up as the victim
B. A rude, immoral, loud, beautiful, flamboyant, possibly famous "red herring"; often a house-guest or relative of above rich person; often ends up as the main suspect until the twist at the end. Although the police suspect our young lovers, you the readers are supposed to suspect this person. Don't.
C. The devoted servant, usually quirky. This person may also be a primary suspect. However, if he/she is devoted to our young lovers, then he/she is not the perpetrator.
D. The surprisingly well-educated detective/police chief, whom the whole class-conscious cast of characters is surprised to find so educated (good characters either like him or are awed by him; bad characters can't stand him). He is often a kindly advocate for our young lovers. This character solves the mystery unless there is an amateur sleuth (see F). Amateur sleuth always trumps well-educated detective.
E. The pig-headed police officer (underling to above detective/chief) who bullies and pesters and suspects our young lovers. He is a foil to our well-educated detective (or amateur sleuth) because he is always several steps behind in seeing or understanding the clues.
F. An alternative (or addition, as in this novel) to our well-educated detective is the unlikely amateur sleuth with unconventional sleuthing methods. This person does not look like a detective (eg, an old lady), so he/she is able to get the scoop and make our pig-headed police officer look stupid. Also always an advocate for our young lovers.
G. A cat. Oh, I really hate it when cozy novels include a quirky cat in their panel of characters. This novel is especially gruesome because said cat is a good judge of characters (eg, likes our young lovers). You can be certain that the murderer is among the people our cat dislikes.
5. These are novels for people who see the world in black and white. Good and evil are very clearly differentiated, and good always triumphs (okay, I like that aspect of the mystery genre). Romantic love always triumphs too -- the final scene is our young lovers reunited and happily planning a future together (which I wouldn't mind if the romance were secondary to the plot, which it isn't; this novel has some nauseatingly sappy passages). If the murderer is completely unrepentant (eg, is "caught in the act" when the detective sets a trap [often recreating the scene of the crime]; is angry and/or violent when caught), he/she will be carted off to jail. But if the murderer is at all repentant or had a difficult past that explains his/her action or in any other way might pull at your heart-strings, then: (1) our amateur sleuth might let them escape to America or in some other way avoid punishment by distancing self, (2) the detective or the amateur sleuth might knowingly allow the murderer to kill himself/herself thus avoiding jail/death penalty or other exposure, or (3) the murderer is killing himself/herself as his/her identity is being revealed, thus making it impossible for our saddened detective/amateur sleuth to step in and prevent this sobering but just end to a bad life.