Chapter summaries A Court of Silver Flames Sarah J. Maas

Chapter Thirty-Seven: The Hewn City, the Mask, and an Intimate Bargain

Spoiler Notice

This page contains detailed spoilers for Chapter 37 of A Court of Silver Flames. Read on only after you have finished the chapter.

Summary

In the dungeon beneath the Court of Nightmares, Rhysand, Feyre, Amren, Azriel, and Cassian interrogate the two surviving Autumn Court soldiers who attacked Nesta in the Bog of Oorid. The males are unresponsive, their minds filled with fog; Amren suspects an enchantment, and Feyre questions the morality of torture. Rhysand halts Azriel’s cutting and resolves to summon High Lord Helion to break whatever spell holds them. Up in the moonstone palace, they discover Nesta sitting beside the covered Mask. She admits the object opened its own warded door and called to her. The group discusses the Mask’s nature: it can only be removed by someone Made of the same dark power, and no force can destroy it while the Cauldron endures. Amren translates the ancient kelpie’s speech—it spoke of sacrifices and brides—and reveals the creature was one of the last of its kind. Nesta retreats to bathe and Cassian brings her dinner. After she invites him into the bath, the two share a raw, intense sexual encounter. Cassian leaves abruptly with a flippant “Thanks for the ride, Nes,” leaving Nesta puzzled and alone.

Key Events

Azriel begins torturing the two Autumn Court soldiers in the Hewn City dungeon while hungry beasts snarl below the grate.
Feyre objects to harming potentially ensorcelled prisoners and suggests summoning Helion to break the spell; Rhysand agrees and apologizes to her for the violence.
The group agrees to delay informing Eris of the missing soldiers until they confirm he is not behind the attack.
Nesta is found in a warded room with the Mask; she reveals the door opened for her and the Mask beckoned her.
Amren explains that only someone Made like the Mask can remove it freely; others who wear it must be beheaded to sever it.
Rhysand and Amren translate the kelpie’s fifteen-thousand-year-old dialect, which speaks of sacrifices, a bride, and no gods to save her.
Feyre suggests Nesta ward the Mask now that they know she can control it; Nesta confesses she believes she failed at basic spells.
Nesta bathes in a cliffside pool, reflecting on how the Mask’s void stripped away her pain and how seductive that numbness felt.
Cassian brings a tray of food, then stays at Nesta’s invitation. They have sex, with Nesta asserting that it is “just sex.”
Afterward, Cassian departs with a wink and a casual line, leaving Nesta to question whether she misread the moment.

Character Development

Nesta confronts the terrifying appeal of the Mask: it erased her inner torment entirely. She admits to herself that she was wondering “whether anyone had ever donned the Mask not to raise the dead, but to simply stop being inside their own minds.” This insight deepens her struggle with self-loathing and shows why she both fears and is drawn to oblivion. She also reveals that she thinks she failed at magic with Amren, exposing long-held insecurity.
Cassian is fiercely protective—he remains in the Hewn City only because he knows Nesta is safe. He later brings her food and hesitates to touch her because she is injured. During sex, he insists on going slow enough not to hurt her and holds her gaze throughout. His abrupt exit and sarcastic remark suggest he is deflecting vulnerability after she insisted on “just sex.”
Feyre asserts a moral stance, questioning torture even when it is for information and reminding the group that the captured soldiers have worried families.
Rhysand shows guilt over making Feyre witness Azriel’s work and agrees to stop the interrogation. He also reads Nesta’s memory of the kelpie and shares shock at her survival.
Amren provides historical context about kelpie sacrifices and the Mask’s unbreakable bond with its wearer, while her cryptic remark about Nesta’s powers highlights ongoing friction between them.

Themes, Symbols, and Motifs

The Mask as Emotional Numbness
The Mask represents a dangerous escape from emotional pain. Nesta sees it as a way to stop her self-hating thoughts, and the chapter explicitly frames its power as seductive precisely because it makes her “stop being inside her own mind.” This parallels the addiction-like pull of her earlier coping mechanisms.
Like Calls to Like
The idea that Made objects resonate with Made beings recurs as Rhysand explains why Nesta could remove the Mask. It implies a deep, perhaps inescapable, bond between Nesta and the darker artifacts of the Cauldron.
Ancient History and Forgotten Horrors
The kelpie’s archaic language and the mention of sacrifices to appease river gods connect the present conflict to a fifteen-thousand-year-old practice. The persistence of ancient evil—kelpies made by a cruel god, the Mask surviving the Cauldron—underscores that some threats cannot be destroyed, only contained.
Sex as a Bargain
Nesta frames intimacy as “just sex,” but the chapter lingers on the intimate way Cassian looks at her, his hesitation, and his devastation after. The gap between her words and their unspoken feelings turns the encounter into a veiled negotiation of emotional boundaries.
The Hewn City and the Beasts Below
The dungeon with its pit of hungry beasts mirrors the hidden, predatory parts of the Night Court’s power. The blood trickling through the grate activates the creatures, just as violence in this court never truly disappears; it waits, feeding slowly.

Why This Chapter Matters

Chapter 37 bridges the immediate aftermath of the Oorid attack and the larger conspiracy surrounding Briallyn and Koschei. It cements Nesta’s connection to the Mask and reveals the psychological danger it poses to her specifically—she might be the only one who can wear it and also the only one who desperately craves the emptiness it provides. The chapter also intensifies the push-pull between Nesta and Cassian, exposing his deepening feelings and her fear of anything beyond a physical transaction. On a plot level, the decision to summon Helion sets up future spell-breaking and warding, while Amren’s translation adds lore that makes the kelpie attack more than a random monster encounter.

Study Questions and Answers

How does Nesta’s private reflection on the Mask deepen the reader’s understanding of her mental state?
Nesta admits that the Mask’s ability to eradicate her guilt and self-loathing felt “seductive, so freeing and lovely.” She had been contemplating whether someone might wear it not for power but to escape their own mind. This shows that beneath her sharp exterior, Nesta’s greatest battle is with herself, and the Mask is a symbol of the numbness she once sought through alcohol and isolation.
What is the significance of the kelpie’s ancient speech, and why are the characters alarmed by it?
The kelpie spoke in a dialect fifteen thousand years old, asking if Nesta was a sacrifice and calling her his bride before supper. The language suggests the kelpie was one of the original, primordial creatures made by a cruel god, not a modern descendant. Its words reveal that kelpies were once placated with human and Fae sacrifices—a dark piece of history that ties the Bog of Oorid to a forgotten system of terror, making it clear that the Mask and the kelpie are remnants of a much older, crueler world.
Why does Cassian leave immediately after sex, and what does his behavior convey about the arrangement Nesta demanded?
Nesta insisted on “just sex,” and Cassian responds by mirroring her detachment with a flippant exit line. His rapid withdrawal, coming right after an intensely intimate encounter where he held her gaze and said her name with such reverence, suggests he is protecting himself. He has deeper feelings but refuses to be vulnerable after she set a hard boundary; his departure is a mix of self-preservation and a pointed demonstration of the emptiness “just sex” can leave behind.