Grave Secrets — Marlene Austion

On the day Bethany Carlisle receives her doctorate, she learns that her grandmother has died. However, Bethany's dismay immediately turns to anger when she learns that the wealthy, eccentric, and distant woman who raised Bethany has taken pains to torment her granddaughter even from the grave. Now, in order to claim her substantial inheritance, Bethany must spend a year at an abandoned house in Maine—and write a book. But what book? In the course of making the old house livable, Bethany believes she's discovered the answer. But the process of writing the now-important book soon becomes complicated by threatening messages—and the attention of three very different men. She wonders if any of their motives are honorable as it becomes clear that someone will stop at nothing to wrest away her inheritance. Now, Bethany must use every ounce of her faith and resourcefulness—if she is to survive.