The Rock 'N' Roll Mystery
by Gertrude Chandler Warner
The Aldens are helping Greenfield’s most popular band get ready for a music festival. A big-time music producer will be there to watch the show, and everyone in Greenfield is hoping the band will be famous soon. The day before the festival, the band’s instruments are stolen! Can the Aldens find the instruments—and the thief—before the big show?