A Court of Thorns and Roses

After Tamlin sends her away to keep her safe, Feyre learns that Amarantha, the faerie who conquered Prythian fifty years earlier, has taken him back Under the Mountain because his curse-breaking deadline has passed. Determined to save him, Feyre crosses back into Prythian and presents herself to Amarantha, declaring her love for Tamlin. Amarantha reveals that the human girl Feyre had claimed to be, Clare Beddor, was tortured and killed in her place, and offers Feyre a choice: solve a riddle or complete three deadly trials to prove her love and break Tamlin's curse.

Unable to solve the riddle, Feyre is thrown into the trials. She kills the monstrous Middengard Wyrm in a mud maze, survives a rigged lever-and-spike puzzle by secretly following silent cues from Rhysand (High Lord of the Night Court, who is outwardly cruel to her but covertly aiding her because of a bargain he has forced her into: one week of every month spent at his court, for the rest of her life), and finally is ordered to stab three hooded, innocent faeries through the heart. The third victim is revealed to be Tamlin himself. Remembering that his heart had been cursed to stone, Feyre stabs him anyway, and the blade stops without killing him, fulfilling the trial.

Furious that Feyre has technically won, Amarantha reveals she never promised to spare Feyre's life, and she tortures Feyre to death by breaking her bones one by one. As she dies, Feyre finally solves the riddle Amarantha had posed at the start, answering "love" with her last breath. This shatters the curse entirely: every masked faerie is freed, the High Lords regain their stolen magic, and Tamlin immediately kills Amarantha. The assembled High Lords each pour a portion of their power into Feyre's dead body, resurrecting her and transforming her into an immortal High Fae.

The book closes with Feyre and Tamlin returning to the Spring Court manor, victorious but changed, Feyre wracked with guilt over the innocent faeries she killed during the trials. Rhysand appears before she settles back in and reminds her that their bargain still stands, that she now owes him one week of every month for the rest of her life, and warns her not to thank him yet, hinting that this obligation will not be a simple or pleasant one.

Feyre Archeron, a human huntress, killed a wolf that turned out to be a faerie in disguise and was taken to the Spring Court in Prythian by its ruler, Tamlin, as payment under an old human-faerie treaty. Over months living at his manor with his friend and emissary Lucien and the servant Alis, Feyre fell in love with Tamlin and learned he is a High Lord whose court and people are cursed: he and his court wear faerie-forged masks, and a magical blight plagues the land. The curse was cast by Amarantha, a faerie called the Deceiver who, fifty years earlier, betrayed and conquered all of Prythian by drugging the seven High Lords at a gathering and stealing most of their power, then using a smuggled army to seize control and rule as self-declared High Queen from a stronghold Under the Mountain. Only Tamlin's Spring Court still resisted her outright. Amarantha's curse required Tamlin to make a human who hated faeries fall in love with him within forty-nine years, or his court and power would be lost forever; Feyre, unknowingly, was his last chance.

When the Night Court's High Lord, Rhysand, discovered Feyre's presence and threatened to expose her to Amarantha, Tamlin sent Feyre home to protect her, not revealing that the deadline to break the curse was about to expire. Feyre later learned the truth from Alis and returned to Prythian, then went Under the Mountain to confront Amarantha and try to save Tamlin. Amarantha killed the human girl Clare Beddor (whom Feyre had used as a false identity) in a show of cruelty, then forced Feyre to undergo three lethal trials to prove her love: killing the Middengard Wyrm, surviving a spiked lever trap, and stabbing three innocent faeries through the heart, the last of whom turned out to be Tamlin, spared only because his heart had been turned to stone by the curse. Throughout the trials, Rhysand secretly protected and guided Feyre while publicly humiliating her, extracting a binding bargain that she must spend one week of every month with him at the Night Court for the rest of her life.

After Feyre completed the trials, Amarantha killed her anyway by breaking her bones, but Feyre used her dying breath to solve Amarantha's riddle with the word "love," instantly breaking the curse: all faeries were freed of their masks, the High Lords regained their stolen magic, and Tamlin killed Amarantha. The High Lords then resurrected Feyre by each giving her a portion of their power, making her an immortal High Fae. The book ends with Feyre and Tamlin back at the Spring Court manor, Feyre traumatized and guilt-ridden over the faeries she was forced to kill, while Rhysand reminds her that their bargain still stands.

Going into the next book, key open threads include: Feyre's unresolved trauma and guilt from the trials and her death and resurrection; her new, not-yet-understood identity and powers as a High Fae; the strained, changing dynamic between her and Tamlin now that the immediate crisis is over; and the looming obligation to Rhysand, who holds her to a monthly bargain and whose motives remain mysterious. The broader political state of Prythian after Amarantha's fall, and the larger threat of the King of Hybern (who orchestrated Amarantha's original scheme), remain unresolved. Feyre's human family, sisters Nesta and Elain and her father, are safe and provided for back in the human lands, with Nesta alone aware of the truth of where Feyre has been.