Episode 9 of "Agatha All Along" kicks off in the year 1750, with Agatha venturing towards a serene lake. Amidst the throes of childbirth, she performs an unusual ritual: slicing a lemon and chewing on it, though its significance remains a mystery. However, this peculiar detail is swiftly overshadowed as Lady Death makes her presence felt, leading us to conclude that Agatha might perish during this trying time. She earnestly begs Death to spare her son's life, and miraculously, Death relents, withdrawing and allowing Agatha to survive her ordeal without magical assistance.
Agatha gives birth to her child by the lakeside, cradling her newborn, Nicholas, in her arms. With a steadfast resolve, she encounters a group of women, whom she ruthlessly slays, stealing their provisions. This pattern of violence persists, even as Nicholas grows older, six years flying by in a blur of bloodshed. Agatha continues to unleash her powers on fellow witches, scoffing at Nicholas's suggestions of cooperation.
During a heart-to-heart conversation, Agatha enumerates her formidable abilities but warns Nicholas that she cannot shield him from the inevitable. She is acutely aware that Death will eventually catch up with them, yet for the moment, she cherishes her role as a mother. As if to hammer home the show's unsubtle themes, Nicholas sings "Down the windy road" as they stroll together, his tune an eerie foreshadowing.
That fateful night, Lady Death claims Nicholas, and Agatha awakens to find her son missing, her world shattered. Grieving deeply, she nonetheless conceives a grim plan. Determined to embrace her villainous nature, Agatha embarks on a spree of murdering witches, her actions growing increasingly ruthless. Decades pass, and her quest continues until we arrive at the present season.
It transpires that Agatha had always intended to slay these witches outright; however, she harbored no magical powers and never believed in the mystical Road. Yet, she was taken aback when Billy conjured the Road, inadvertently enabling her dark designs. Through her harrowing journey, Agatha's descent into villainy is painted in vivid strokes, her actions stark and unrelenting, highlighting the depths of her desperation and determination.
Flashing back to the dramatic climax of the previous episode, Agatha materializes as a spectral figure following her demise, her form shimmering with an eerie luminescence. She reveals that her selfless sacrifice was a calculated gamble, one that granted her ghostly existence while denying it to others. Meanwhile, Billy is plunged into disbelief, grappling with the notion that he might be the unwitting architect of the carnage. Or did he really pull the trigger?
Amidst the chaos, Jen emerges from the ground outside Westview, her form released from its earthly bonds. With her powers unleashed, she takes flight, reclaiming her life with a sense of liberty and determination.
Billy descends into the basement, where he meticulously draws a pentagram upon the cold, concrete floor—precisely at the threshold leading to the mysterious Road. Clutching Agatha's pendant, he intones an ancient incantation, intending to banish her spirit to the void. Yet, his efforts falter, and Agatha, her voice tinged with sorrow, admits she cannot face the prospect of an eternal slumber, haunted by the memory of her lost son.
Despite her ethereal state, which renders her intangible to the physical world, she somehow manages to grasp the pendant, an inexplicable anomaly, and places it back around her neck. Billy's resolve wavers; instead of banishment, he opts to carve the names of the fallen into the ground, a solemn tribute to their memories. With the door to the Road firmly shut, Agatha joins Billy, and together, they embark on a poignant quest to seek out Tommy.