The Ghost Kings. A Prophetess, a Lost Tribe, and a War Between the Living and the Dead

Deep in southern Africa, a girl raised among a vanished tribe discovers she can speak with the dead - and that the dead have plans of their own. Rachel Dove, daughter of a missionary, is raised in close contact with the Umzimvubu people and comes to be revered by a secretive tribe of "Ghost Kings" as their prophetess - a living bridge between the ancestors and the living. When colonial ambition and tribal war collide, Rachel is drawn into a conflict where spirits, prophecy, and politics are impossible to separate. H.
Rider Haggard, the master of Victorian adventure fiction, blends supernatural fantasy with the sweeping romance and peril of his best-known work - a lush, atmospheric tale of destiny, power, and the thin line between the living world and the one beyond it. - From the author of King Solomon's Mines and She - A sweeping blend of adventure fiction and supernatural fantasy - A prophetess caught between empires, tribes, and the dead Some kingdoms are ruled by the living.
This one answers to ghosts.