Whisper of Danger — Clarissa Ross

When old Emma Lathen died no one was sorry. But when she started sending malicious letters from beyond the grave, all of St. Andrews was in an uproar. Lucy Dorset thought that her doctor husband was faithful to her, that he and Sheila Farley were through. But one day she got one of those nasty letters and then Sheila came back to town. All of a sudden, Lucy wasn't so sure her marriage would make it.