In quaint, coastal St. Edmund, Massachusetts, eccentric teenager and local amateur tour guide Edgar Wilde has stumbled onto a centuries-old secret, a forgotten history that some in the town would rather stay hidden. A tantalizing young-adult mystery, Edgar Wilde and the Lost Grimoire entwines cemetery clues, rumors of witches, and a legendary lost book of spells.

Together, the three find themselves on a tantalizing quest involving centuries-old clues hidden around St. Edmund, a forgotten witch trial, and a mysterious book of spells - the Lost Grimoire - that promises untold power to the one who wields it.