Montana Sky by Nora Roberts

In a tale of family, love, and suspense, three estranged half-sisters are brought together by the death of their father, who leaves them a sprawling Montana ranch with the stipulation that they must live there together for a year to inherit it. As they navigate their differences and forge unexpected bonds, they also face a series of mysterious and dangerous events that threaten their lives and the future of the ranch. Amidst the breathtaking beauty of the Montana landscape, they discover the strength of sisterhood and the power of love to overcome even the darkest of challenges.