Instruct: Classify the given review into positive or negative sentiment.
Query: Not up to my -- or Wolfe's -- usual standards

This mystery has all the hallmarks of a hasty, poorly reasoned book. Red herrings are sprinkled throughout the book -- why were the Emersons so upset? why were mother and son searching Rony's apartment? why did they change their mind and welcome Rony to their home? Finally, the big resolution scene never satisfactorily explained how Wolfe figured out "who dun it?"Light on the usual atmosphere and definitely short on the key to a good mystery -- Stout has done much better.