The Case of the Flapper 'Napper (The New Adventures of Mary-Kate & Ashley, No. 21) (New Adventures of Mary-Kate & Ashley, 21) Paperback – January 9, 2001 by Mary-Kate & Ashley Olsen
Book 21 of 46: New Adventures of Mary-Kate and Ashley
 
Talk about style! Ashley and I were invited to a cool costume party at the house of a famous mystery writer, Fiona O'Leary. We couldn't wait to hit the ballroom for the big 1920s dance contest.
The whole flap started when Fiona's adored cat disappeared. And everyone thought our dog Clue "dunnit"! Ashley and I were sure our pooch was framed. But we'd have to prove it -- or Olsen and Olsen could end up Clue-less!
 
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