In “The Mrs. Lillywhite Investigates series,” Rosemary Lillywhite has to decide between staying in mourning or helping a new friend in need. As she delves into an intriguing mystery, she swaps her widow weeds for a party dress and dives into a 1920s murder investigation. Get ready to escape to the roaring twenties in this light, cozy mystery with no swearing, graphic scenes, or cliffhangers.