Three Cousins Detective Club

#2 The Mystery of the Silent Nightingale by Elspeth Campbell Murphy, 1994.

Sarah-Jane’s baby-sitter and friend, Kelly, is graduating from high school. Soon, she will be going away to college. Sarah-Jane is sad that she is leaving, but she is happy her family was able to find her a nice graduation present.
After they pick out their present, Sarah-Jane sees a locket with a nightingale on it in a store window. The nightingale is a Christian symbol for joy, and Sarah-Jane thinks that it would have made a nice present for Kelly if they didn’t already have one.
To everyone’s surprise, someone else buys the locket and leaves it at Kelly’s house. Sarah-Jane feels a little strange that someone else took the idea that she’d had for Kelly’s present. However, it is even more mysterious that there is no note or card with it to say who it is from. Kelly asks the cousins to help her find out who gave her the locket so that she can thank them. As it turns out, the present isn’t just an ordinary graduation present. It’s actually a thank you from someone who has been grateful to Kelly for a long time for a kindness she wasn’t even aware that she had done. Sarah-Jane even had a hand in it herself although she also wasn’t aware of it. Sometimes, it’s the smallest good deeds that can make the biggest difference in someone’s life.
The theme of the story is joy.
The book is available to borrow for free online through Internet Archive.
Themes and Spoilers:

The person who left the present for Kelly is Janice, who works for Kelly’s father. The kids had wondered why she seemed to recognize them when they stopped by Kelly’s father’s office early to show him Kelly’s graduation gown. It turns out that Janice has been grateful to Kelly for years for something kind that Kelly did for her when the cousins were very young. Kelly always used to read to the cousins when they were small, particularly Sarah-Jane. She took Sarah-Jane and the others to the library the day that Sarah-Jane got her first library card. That same day, Janice was also at the library.
Janice had never learned to read and was unable to finish her education. For a long time, she was ashamed to admit to anyone that she couldn’t read. Then, she heard about classes at the library for adults who had never learned to read and decided to go there. When she got to the library, she didn’t know where the classes were being held. She couldn’t read the signs, and she was too embarrassed to ask the librarian. There were some people she knew in the library, and she was so afraid of any of them finding out why she was there that she almost left. Then, Janice saw Kelly with Sarah-Jane and the boys. She saw how happy Sarah-Jane was to get her new library card, and she decided that she really wanted to learn to read, too. Janice knew that Kelly wouldn’t look down on her like some adults would, so she asked Kelly to help her find the class. Kelly helped her, even though she forgot about it later, and Janice was grateful to her for keeping her from backing out.
After Janice learned to read, she was able to finish her education. When she realized that the girl who had helped her years ago was her boss’s daughter, she wanted to give her a present. She wanted it kept secret at first because she was still embarrassed that it took her so long to learn to read. She was worried about what her boss would think of her. However, Kelly’s father doesn’t hold it against her, and Janice’s strict supervisor, Dorothy, even asks her to help tutor her grandson, who has been having learning difficulties.





