"The Mother Hunt" by Rex Stout

I've seen the Nero Wolfe Mystery version of this many times, so I was never in doubt of how Nero Wolfe would solve the mystery of who left a baby in a wealthy widow's vestibule and then killed a couple of women.  I must admit that anymore, I don't read these books for the mysteries in them -- I read them to spend time with Archie Goodwin and Nero Wolfe and their cohorts.  Hanging out with my imaginary friends for a hundred pages or so is what keeps me coming back for more, and...