"Too many tings have been going wrong," Jungle Jack said. "First the fire in the ticket booth. Then the truck broke down. Then my best chimp died. Some of the carnival people think we have been jinxed. They believe in things like that." Link was shaking his head. "A jinx could not put sugar in gas tanks. Remember? Jim could no ride his bikes for three days. it took him that long to clean them out. No, I think this jinx walks on two legs. And I think we had better catch him - fast!"
Used availability for Patricia Matthews's The Carnival Mystery