Fourth grader Penina—aka Pinky—is a Yankees fan, an older sister, and Brooklyn's greatest kid detective. With the help of her pet cat DJ, her best pal Lucy Chang, and her little brother Avi, Pinky unravels a vexing mystery—what happened to the ancient Jewish Kiddush cup that went missing from a museum exhibit? Pinky and her team get to the bottom of things through a series of exciting and intriguing adventures.