I have read most of the Nero Wolf Books by Rex Stout several times over. If I had list of my admired authors he would be on it.
In the seventh edition we find Wolf has two visitors from Montenegro. Neya Tormic wants him to investigate a diamond robbery in which Neya is accused of taking the diamonds. As usual Wolf refuse to get involve until Neya tells him she has the paper that says he adopted her when she was two years old. Wolf sends Archie to investigate. While he is there a murder is committed. Archie’s actions will amuse you. The ending is unique and Wolf wins again. I HIGHLY RECOMMEND THIS BOOK AND SERIES.