In the 1980s, Kate Meaney-"Top Secret" notebook and toy monkey in tow-is hard at work as a junior detective. Busy trailing "suspects" and carefully observing everything around her at the newly opened Green Oaks shopping mall, she forms an unlikely friendship with Adrian, the son of a local shopkeeper. But when this curious, independent-spirited young girl disappears, Adrian falls under suspicion and is hounded out of his home by the press. Then,...

Strange rumors about the Wonderland Mall, including the reported disappearance of a teen there, prompt Robin and her friends to investigate, but their trip to the mall could force them to shop until they drop.