Balloon Blow-Up

de Franklin W. Dixon, Scott Burroughs

Joe and Frank Hardy win a contest to be handlers for a Green Crawler balloon in the annual fall festival, but when the balloon is sabotaged the day before the parade, the brothers must investigate. Joe and Frank Hardy win a contest to be handlers for a Green Crawler balloon in the annual fall festival, but when the balloon is sabotaged the day before the parade, the brothers must investigate. Book #13