Mary Sibley, the most powerful witch in Salem, faces both foreign and domestic challenges to her authority in the premiere of Season 2.
Mary initiates the second act of the Grand Rite; Alden returns to Salem.
A former foe helps Mary keep Salem in the witches' hands.
Anne explores her supernatural side, while Mary receives a chilling warning.
Mary comes face-to-face with her tormentor Countess Marburg.
Countess Marburg arrives in Salem and threatens Mary's stronghold on the city.
Mary and Countess Marburg keep up appearances while continuing their covert battle for Salem.
Countess Marburg's Achilles' heel is revealed.
Mary and Wainwright grow closer; at the same time, the Starry Messenger comet approaches Earth; Anne continues to glean knowledge from her dead father's writings; and a long-brewing feud reaches a tipping point.
Alden faces his first test of fatherhood after he joins forces with Mary.
Mary has a public fall from grace, while Alden and Cotton work together to save the Boy's soul.
The final countdown to the consecration begins.
In the Season 2 finale, Mary plans a last-ditch effort to overthrow Countess Marburg; John receives a serious message from a pair of allies; Mercy faces the possibility of a scary future; and Anne ventures down a more destructive path.