An Amulet of Souls

Is the old woman in custody mentally ill? Possessed? Or is her condition something more nefarious? And will helping her embroil the Institute in unraveling dark plans that have been in the works for decades. Or will it expose the secrets that the Institute has been keeping, even from the Police, with whom they work, and from "PsyPro Corporation", who have cornered the market on exorcisms in the United States.