Nita Prose wrote her first novel, “The Maid,” in 2022, and it’s sold over one million copies worldwide since then. It’s a cozy mystery, meaning there’s no graphic violence on the page—but there’s plenty of intrigue in figuring out “whodunit.” Now Nita has a sequel to “The Maid,” called “The Mystery Guest.” Both books feature heroine Molly Gray, a fastidious maid who works in a five-star hotel. Nita spoke with fellow writer and interim director of creative writing at Interlochen Center for the Arts, Brittany Cavallaro, at the City Opera House in Traverse City.