Bitterroot Lake : a novel / Alicia Beckman.

Enhanced descriptions from Syndetics:

When four women separated by tragedy reunite at a lakeside Montana lodge, murder forces them to confront everything they thought they knew about the terrifying accident that tore them apart, in Agatha Award-winning author Alicia Beckman's suspense debut

Twenty-five years ago, during a celebratory weekend at historic Whitetail Lodge, Sarah McCaskill had a vision. A dream. A nightmare. When a young man was killed, Sarah's guilt over having ignored the warning in her dreams devastated her. Her friendships with her closest friends, and her sister, fell apart as she worked to build a new life in a new city. But she never stopped loving Whitetail Lodge on the shores of Bitterroot Lake.

Now that she's a young widow, her mother urges her to return to the lodge for healing. But when she arrives, she's greeted by an old friend--and by news of a murder that's clearly tied to that tragic day she'll never forget.

And the dreams are back, too. What dangers are they warning of this time? As Sarah and her friends dig into the history of the lodge and the McCaskill family, they uncover a legacy of secrets and make a discovery that gives a chilling new meaning to the dreams. Now, they can no longer ignore the ominous portents from the past that point to a danger more present than any of them could know.