Boxcar Children 18: Candy Factory Mystry

When Grandfather's friend Mrs. Winkles needs some extra workers at her candy factory, the Alden children are eager to help. What could be more fun than spending their days making candy? But working in the factory isn't as sweet as they expected it to be. Workers are quitting, machinery is breaking down, and mysterious threatening messages are appearing on the candy hearts. It looks like someone is sabotaging Mrs. Winkles's candy - and now it's up to the Aldens to figure out who it could be!