I have read this book before. It must have been over 21 years ago because I hadn't started writing book reviews at that time. But even so, I still remembered many of the solutions to the mysteries, and a couple of them I even remembered the whole puzzle after the first paragraph of the story.

Sadly, these are not great mysteries. One or two of them are clever, but most are barely competent. I'd recommend Hot or Cold and possibly Friends and Allies but that's it.