In S.T. Gibson’s “Evocation,” psychic prodigy David Aristarkhov balances his day job as a Boston attorney with his side gig as a medium and member of an occult secret society. When David is ...

S.T. Gibson’s newest novel “Evocation” tells the story of David, a psychic and high-power Boston lawyer, who must join forces with his sorcerer ex-boyfriend and the ex’s witch wife to ...