Necronomicon- Ephraim Controlling Asenath's Body

     Edward’s face was now atrociously distorted, and he bent it uncomfortably close to mine as his voice fell to a whisper.
     “You must know what I hinted in the car—that she isn’t Asenath at all, but really old Ephraim himself. I suspected it a year and a half ago, but I know it now. Her handwriting shews it when she’s off guard—sometimes she jots down a note in writing that’s just like her father’s manuscripts, stroke for stroke—and sometimes she says things that nobody but an old man like Ephraim could say. He changed forms with her when he felt death coming—she was the only one he could find with the right kind of brain and a weak enough will—he got her body permanently, just as she almost got mine, and then poisoned the old body he’d put her into. Haven’t you seen old Ephraim’s soul glaring out of that she-devil’s eyes dozens of times . . . and out of mine when she had control of my body?”

- The Thing on the Doorstep, part V