Teen detective Nancy Drew searches for a saboteur lacing skincare products with poison at the local mall in this thrilling mystery.

Nancy Drew’s boyfriend Ned Nickerson has taken on a real-life project as part of a class at Emerson College—helping do market research for skin cream in River Heights. But people start having adverse reactions to the product in incredible numbers, making Ned and Nancy suspect sabotage. It’s up to Nancy to find the source of poison and uncover the perpetrator.