A young girl discovers she possesses a strange genetic affliction tracing back to the dark days of Salem; Fiona Goode returns to town.

Fiona helps Zoe and Madison deal with a horrible tragedy; Delphine LaLaurie struggles to adjust to modern life; Cordelia faces a dark decision about her family.

Fiona's choices rattle a decades-long truce between the Salem witches and Marie Laveau; the Council of Witchcraft pays a surprise visit to the academy with disturbing allegations.

Besieged by Marie Laveau's army, Zoe unleashes a new power; Fiona and Myrtle clash over control of the coven; Madame LaLaurie is confronted by old ghosts.