Witches at the Gate by M Greenhill

An alluring academic with a magical secret, and a bloodthirsty detective with centuries of life experience, collide in Witches at the Gate, a riveting mystical mystery by M Greenhill. After a coven of witches is slaughtered in modern-day Salem, a professor of the occult joins the hunt for a sinister killer, but uncovers a much larger and darker plot – one that will resurrect an ancient evil and open the gateway to Hell. Though the premise has notes of other sagas, the engaging overlap of folklore, Gothic gore, and supernatural romance makes this addictive novel an exceptional intro to a new series.