Big top flop / Keene, Carolyn

When a traveling circus comes to River Heights, Nancy, Bess and George decide to compete in the Junior Ringmaster whistling contest to win a spot as the ringmaster on opening night, but when the shiny prize whistle is stolen, the friends must investigate to solve the mystery.

Nancy, Bess, and George decide to compete in the Junior Ringmaster whistling contest to win a spot as the traveling circus's ringmaster on opening night, but when the shiny prize whistle is stolen, the friends must investigate to solve the mystery.

When George wins a contest and gets to blow the big whistle at the circus' opening night, someone switches the whistle with a broken one, and it doesn't make a sound. Nancy, Bess, and George--who make up the Clue Crew--set to work hunting down suspects and finding the whistle switcher.

Nancy Drew and her friends are on the case when junior ringmaster, George's whistle is stolen.