The High-Rise Private Eyes #3: The Case of the Puzzling Possum (I Can Read Level 2)

The Beat Goes On

One day, the trombone is missing from Mr. Riley's music store. The next day, it's back. Then it's gone again. Who could be taking it -- and why?

This sounds like a case for the High-Rise Private Eyes -- Bunny Brown and Jack Jones, ace detectives and very best friends!