Lasher (Lives of the Mayfair Witches book #2) by Anne Rice

Anne O'Brien Rice Horror novelist Anne Rice was made famous by her Vampire Lestat novels including Interview With the Vampire and Queen of the Damned. Her grasp of horror goes beyond mere vampires, however, as shown in this adaptation of her novel, The Witching Hour. The lushly painted story centers around an old antebellum mansion in New Orleans.

Within that house, three maiden aunts cared for a strangely quiet girl named Deirdre. Deirdre sat nearly catatonic on the porch, never speaking to anyone, although a succession of nurses had quit citing vague "attacks." She had a regimen of thorazine injections that would have killed someone unaccustomed to the drugs, and her aunts seemed content to leave her that way. Her only visitor was a strange man who seemed to disappear into the mist moments after he was seen. That man was the devil. The aunts were witches. Deirdre was the chosen one. And this...is the Witching Hour.