The WitchFinder's Serpent

The Witchfinder’s Serpent by Rande Goodwin melds historical representations of witchcraft with modern fantasy. After losing their father, teen brothers Nate and Marc Watson move from New York City to stay with their Aunt Celia in Windsor, Connecticut. It’s not long before they realize she’s keeping dark secrets from them, secrets that may involve a locked room filled with books on demonology and materials connecting the Watson family to centuries-old witch trials. When Nate and Marc accidentally unleash a trapped evil spirit named Malleus Hodge, they’ll need all the help that history and magic can give them to stand up against the forces of centuries-old evil.