Carolyn Hart classics

"A young woman is convinced she's living with a murderer among family members, lodgers, and ranch hands in New Mexico. Serena Mallory came to the huge New Mexico ranch of Castle Rock as a twelve-year-old orphan. She grew up as the ward of owner Dan McIntire. Now in her early twenties, Serena watches the ranch's idyllic summer charm disappear when Dan dies in a riding accident. The night before his accident, she overheard him arguing with someone, and since his death, a series of strange accidents has plagued the ranch. Convinced that Dan's accident was anything but, Serena sets out to find the guilty party"-- "A young woman is convinced she's living with a murderer among family members, lodgers, and ranch hands in New Mexico"--

Leah has been presumed dead for nineteen years--since the day that both her parents died. Very much alive, she has returned to Deveraux plantation in South Carolina to uncover the untold story of her parents' deaths. When a ghost known only as the Whispering Lady appears once again at the Devereaux plantation after years of absence, the locals know it's an omen of death--and Leah and her adopted cousin Merrick may be the next targets ...