Her Sister's Death by K L Murphy

She wanted the truth. She should have known better.
When her sister is found dead in a Baltimore hotel room, reporter Val Ritter's world is turned upside down. What's worse—an empty pill bottle at the scene leads the police to believe the cause of death is suicide. With little more than her own conviction, Val teams up with a retired detective who has his own personal interest in the case.
But digging into the corners of her sister's life and retracing her last days, will lead them to the hotel's dark, sordid history. In 1921, another guest on the brink of womanhood, will soon marry an eligible older man, sure to be a comfortable match—or is it?
With time running short, Val races to uncover the truth behind her connection to the woman in 1921, and the detective who knows more than he should about her sister, the hotel, and its sinister secrets.