The Last of the Moon Girls by Barbara Davis

Goodreads Choice Awards 2020
A novel of secrets, memory, family, and forgiveness by the bestselling author of When Never Comes. Lizzy Moon never wanted Moon Girl Farm. Eight years ago, she left the land that nine generations of gifted healers had tended, determined to distance herself from the whispers about her family’s strange legacy. But when her beloved grandmother Althea dies, Lizzy must return and face the tragedy still hanging over the farm’s withered lavender fields: the unsolved murders of two young girls, and the cruel accusations that followed Althea to her grave.
Lizzy wants nothing more than to sell the farm and return to her life in New York, until she discovers a journal Althea left for her—a Book of Remembrances meant to help Lizzy embrace her own special gifts. When she reconnects with Andrew Greyson, one of the few in town who believed in Althea’s innocence, she resolves to clear her grandmother’s name.
But to do so, she’ll have to decide if she can accept her legacy and whether to follow in the footsteps of all the Moon women who came before her.