Mystery Guest, The (Molly The Maid #2) by Nita Prose; 2023. Hardcover.

When an acclaimed author dies at the Regency Grand Hotel, it's up to a fastidious maid to uncover the truth, no matter how dirty.

Molly Gray is not like anyone else. With her flair for cleaning and proper etiquette, she has risen through the ranks of the glorious five-star Regency Grand Hotel to become the esteemed Head Maid. But just as her life reaches a pinnacle state of perfection, her world is turned upside down when J.D. Grimthorpe, the world-renowned mystery author, drops dead—very dead—on the hotel’s tea room floor.

When Detective Stark, Molly's old foe, investigates the author’s unexpected demise, it becomes clear that this death was murder most foul. Suspects abound, and everyone wants to know who killed J.D. Grimthorpe? Was it Lily, the new Maid-in-Training? Or was it Serena, the author’s secretary? Could Mr. Preston, the hotel’s beloved doorman, be hiding something? And is Molly really as innocent as she seems?

As the case threatens the hotel’s pristine reputation, Molly knows she alone holds the key to unlocking the killer's identity. But that key is buried deep in her past—because long ago, she knew J.D. Grimthorpe. Molly begins to comb her memory for clues, revisiting her childhood and the mysterious Grimthorpe mansion where she and her dearly departed Gran once worked side by side. With the entire hotel under investigation, Molly must solve the mystery post-haste. If there's one thing Molly knows for sure, it's that dirty secrets don't stay buried forever...