Juniper flees to New Salem after killing her abusive father with a snake venom charm, wanted for murder.

Bella discovers handwritten spell verses tucked in the final pages of a library copy of the Sisters Grimm.

Bella accidentally conjures a massive black tower in St. George's Square while murmuring the old verses aloud.

The three estranged Eastwood sisters recognize each other in the square after all other spectators have fled in panic.

Miss Stone banishes all three Eastwood sisters from the suffrage organization after Juniper demands they embrace witchcraft.

The sisters place a newspaper ad inviting women to join the Sisters of Avalon and hold their first secret founding meeting.

The Sisters of Avalon transform the bronze statue of St. George in the town square into a bronze pig overnight.

Police ambush the witches during their third spectacle and arrest Juniper on outstanding charges of murder.

Gideon Hill visits Juniper in prison and reveals he is a centuries-old witch who eradicated magic to hoard it for himself.

The three sisters perform a ritual from three separate locations; Juniper's enchanted iron collar crumbles and she escapes through a portal.

The reunited sisters enter the reappeared tower and discover the Lost Way of Avalon is a vast library of magical knowledge.

Hill sets the tower on fire; the sisters resolve to stay in New Salem and unite their two coalitions to fight back.

Hill wins the mayoral election by a landslide and immediately passes ordinances establishing a new inquisition to try witches by fire.

The spirits of the Last Three witches materialize inside the tower and teach the Eastwood sisters the spell to unbind Hill.

Juniper steps into the burning scaffold to complete the unbinding spell and banish Hill's soul, sacrificing her own life.

The three estranged Eastwood sisters are drawn together by a magical accident in New Salem, beginning a shared mission to restore witchcraft to a world that suppressed it centuries ago. United but wary, they build the Sisters of Avalon and stage public spectacles challenging the city's patriarchal power structure. Their boldness draws the violent attention of Gideon Hill, a secretly centuries-old male witch who arrests Juniper and begins hunting all witches in the city. The sisters perform a daring three-location ritual that frees Juniper and unlocks a tower library containing the Lost Way of Avalon. Hill retaliates by burning the tower, winning the mayoral election, and instituting a new inquisition to burn witches at the stake. In the climax, the spirits of the original Last Three witches teach the Eastwoods the unbinding spell, and Juniper sacrifices her own life to banish Hill's soul forever.

The rise of the Eastwood sisters and their war against Gideon Hill.

Juniper casts a confusion spell on a suspicious policeman to slip away unrecognized after stepping off the train.

Agnes wanders uptown and ends up in St. George's Square after refusing her suitor Floyd's marriage proposal.

Agnes buys pennyroyal from the midwife Madame Zina, who reads her tarot cards and predicts she will keep the baby.

Juniper stages an unauthorized suffrage demonstration at the Centennial Fair, using a cloaking spell to conceal uniforms until the right moment.

Agnes pulls Juniper away from a violent attacker during the riot and hides with her in a brothel overnight.

Agnes uses a blood spell to secretly invite mill workers to a Sisters of Avalon meeting and magically expands her rooms to fit the crowd.

August Lee signs the Sisters of Avalon membership roll, becoming the organization's first male member after Agnes impresses him with magic.

Bella flees in tears after overhearing Quinn apparently reporting on the Sisters of Avalon's upcoming spectacle to an unknown party.

Agnes confronts mill owner Malton in his office and threatens him with magical curses to stop him from assaulting a new worker.

Agnes's water breaks in public; she collapses when she cannot retrieve the hidden tower vial and is placed under arrest.

Agnes draws a portal circle on her hospital bedsheet to summon Bella and Juniper to help her through labor.

Hill's Inquisitors seize infant Eve; Agnes receives word to present herself to the mayor if she wants her daughter returned.

Agnes's hawk familiar Pan swoops down and claws Hill's face during their confrontation, drawing blood and proving he is mortal.

Lee secretly recovers Eve from the orphanage using a charmed clay decoy while the Eastwoods face their execution in the square.

Bella uses a rose petal ring to begin a resurrection chant for Juniper; every witch in the square joins until Juniper rises.

Before and around the tower's first appearance, each Eastwood sister navigates her individual struggles while the coalition that will ultimately defeat Hill slowly takes shape. Agnes faces a difficult decision about her pregnancy, Juniper uses small acts of magic to evade the law, and unlikely allies from the city's working women are drawn into the cause. The founding of the Sisters of Avalon gains its first male member in August Lee, while a suspected betrayal and a dramatic public arrest test the group's resilience. Agnes's labor forces a desperate magical improvisation, and the birth of her daughter Eve briefly offers hope before Hill kidnaps the baby to use as leverage against the sisters. In the final confrontation, Lee secretly rescues Eve from the orphanage while the Eastwoods face their public execution, and the surviving sisters repay Juniper's sacrifice by performing a resurrection spell joined by every witch in the square.

The supporting moments and hidden efforts that built the witches' movement.

Bella recognizes the three interwoven circles on the vanishing tower as the symbol of the legendary Last Three witches.

Bella meets journalist Cleopatra Quinn after the tower incident and secretly finds herself attracted to her despite fleeing the conversation.

During the Centennial Fair riot, Quinn works a concealment spell to hide herself and Bella and admits her grandmother taught her magic.

Agnes reveals the full truth of the barn fire to Juniper, explaining how their father attacked all three sisters and caused their separation.

Bella confesses to her sisters that she was the one who unwittingly spoke the verses that raised the black tower.

Juniper draws the parallel between the mythical Maiden, Mother, and Crone and the three Eastwood sisters reunited on the equinox.

Quinn reveals she is one of the Daughters of Tituba and guides Bella to safety through Underground Railroad tunnels after the police ambush.

Quinn and Bella travel to Old Salem and find the missing spell verses inscribed on a needlework sampler in a museum of sin.

Inside the tower library, Juniper confesses to killing their father, and the sisters realize he had destroyed all their letters for seven years.

Bella performs a shielding spell that causes the smoldering ruins of the burned tower to vanish before Hill's furious eyes.

Quinn proposes marriage to Bella before the sisters march out to surrender themselves to Hill's inquisition.

Hill tells Juniper his origin story in her cell — a boy who learned magic from a kindly witch and then burned his village to hide the evidence.

Hill offers Juniper an alliance and more magical training if she will betray her sisters; she refuses without hesitation.

Juniper realizes Hill has bound his soul to infant Eve to possess her body, and intercepts his escaping essence before it can reach her.

Juniper is resurrected as a corporeal spirit and returns to the family farm, where she teaches magic to anyone who wants to learn.

Across the novel, a series of revelations and critical decisions transform the Eastwood sisters and shift the balance of the war against Hill. From Bella first recognizing the three interwoven circles on the phantom tower to Juniper drawing the connection between her family and the legendary Last Three, each discovery deepens their understanding of their shared destiny. Old secrets come to light — the truth of the barn fire, letters their father destroyed, and Quinn's concealed allegiance — forging stronger bonds even as they reopen old wounds. A research journey to Old Salem uncovers the missing spell verses the sisters need, while Hill's confession to Juniper in her cell reveals the fearful, broken origins of the monster threatening New Salem. In the final confrontation, Juniper's realization that Hill intends to possess infant Eve turns the tide of battle, and her sacrifice is ultimately answered by every witch in the city joining together to bring her back.