Yes, "In the Best Families," by Rex Stout, is another Nero Wolfe novel - I'm working my way through them slowly. This is the 17th, published in 1950, and features a largely missing Wolfe! Early on, a very rich woman comes to Wolfe to ask him to find out how her husband of three years always seems to have lots of money even though she cut him off following too many requests for money from her. The woman's cousin, who lives on her property and raises Dobermans for a living, happened to have an instance of someone poisoning one of his dogs (the dog survived) about a month earlier, and it is decided that Archie Goodwin will travel to Westchester County to visit the cousin in his role of detective, looking into the poisoning incident; that way, Archie can get a look at the husband and find out what he can. Things take a turn for the (much) worse when that night, the rich woman is murdered, along with her dog. Before Wolfe can even begin to investigate, however, a rigged package sent to his home leads him to go into hiding; no one, not Archie and not even his good friend Marko, knows where he is. Because Nero Wolfe is determined to do something much more dangerous than finding a murderer, and he needs time and secrecy for his plan to ripen....This is one of the best Nero Wolfe novels I've read, albeit also one of the most melodramatic. There's action, there's intrigue, there's all sorts of surprises; and even Lily Rowan shows up, in a cameo. Highly recommended.