“The boy never cried again, and he never forgot what he'd learned: that to love is to destroy, and that to be loved is to be the one destroyed.”
— Jace reflects on his childhood and the harsh lessons about love and pain.
Archivist's Choice
City of Glass
Cassandra Clare (2009)
Genre
Literary Fiction / Mystery
Reading Time
500 min
Key Themes
See below
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In the Shadowhunter city, Clary must defy laws, navigate family secrets, and unite factions to save her mother and stop Valentine from destroying their world, as her love for Jace grows amidst the chaos.
Synopsis
Clary Fray wants to save her comatose mother, so she goes to Alicante, the Shadowhunter capital, against Jace's wishes. When she arrives, she finds Simon imprisoned by Shadowhunters because he can withstand sunlight. Valentine plans to destroy all Shadowhunters. Clary uncovers secrets about her family's past and finds an ally in Sebastian. Shadowhunters and Downworlders form an alliance to fight Valentine, who wants to summon the Angel Raziel to destroy all half-breeds. Clary learns the truth about Jace's family and Sebastian's identity as her brother, Jonathan. In a battle, Clary uses her rune-creating powers to change Valentine's ritual, summoning Raziel herself. She wishes for Valentine's destruction, saving Shadowhunters and Downworlders. After this, Jace accepts his identity as a Herondale, and Clary's mother wakes up, starting new chapters for the characters.
Reading time
500 min
Difficulty
Medium
Pacing
Fast
Mood
Action-packed, Romantic, Suspenseful, Mysterious
✓ Read this if...
You enjoy urban fantasy with a strong romantic subplot, intricate family secrets, and a blend of action and magic.
✗ Skip this if...
You prefer standalone novels, dislike love triangles, or are not a fan of young adult fantasy tropes.
Plot Summary
A Desperate Journey to Alicante
Clary Fray wants to cure her mother, Jocelyn, who is in a magically induced coma. She learns that the warlock Ragnor Fell knows the cure. Fell is in Idris, the Shadowhunter home, which Clary cannot enter without permission. Jace Herondale worries for Clary's safety and does not want her to break the Law. He tries to trick her into staying. Simon Lewis, Clary's best friend and a Daylighter vampire, travels with Jace, Alec, and Isabelle Lightwood to Idris. Clary uses a portal by Magnus Bane to follow them, arriving in Alicante, the City of Glass, by herself. Her arrival causes a magical explosion, injuring her and telling the Clave about her illegal entry.
Simon's Imprisonment and Jace's Dilemma
When Simon arrives in Alicante, the Clave arrests him because he is a Daylighter vampire, a rare and powerful being. He is put in the Gard, the Shadowhunter prison. His ability to walk in sunlight makes him suspicious. Jace worries about Clary, especially after her dangerous arrival. He finds her at the Lightwood family home. Still thinking they are siblings, he tries to push her away, believing his feelings for her are wrong. His inner struggle makes him act cold, confusing Clary, who does not know how upset he is.
A New Ally and a Cryptic Message
While recovering at the Lightwood manor, Clary meets Sebastian Verlac, a distant Lightwood cousin and a charming Shadowhunter. Sebastian offers to help Clary find Ragnor Fell. They go to Fell's house and find it ransacked and Fell dead, killed by Valentine Morgenstern. Before dying, Fell left a message: the cure for Jocelyn's coma is in a copy of the 'Book of the White' that belongs to Magnus Bane. This changes their goal from finding Fell to finding the old spellbook, which has powerful warlock magic that could save Clary's mother. They must work with Magnus, who is also in Idris.
The Book of the White and the First Mortal Instrument
Clary, Sebastian, and Jace find Magnus Bane. He does not want to help because of his past with the Shadowhunters and the Clave. Magnus eventually says the 'Book of the White' is not with him but hidden in his New York apartment. Clary uses her rune-drawing abilities to make a portal, letting them get the book. Inside, they find the spell to wake Jocelyn. They also learn about the Mortal Cup, the first Mortal Instrument, and its purpose: not just to make new Shadowhunters, but also to control demons. This information becomes important as Valentine's plans to get the Mortal Instruments become clearer.
Simon's Escape and the Mark of Cain
While in the Gard, Simon is visited by Raphael Santiago, the leader of the New York vampire clan, who tries to trade Simon for the Mortal Cup. The Clave refuses. The demon Lilith, in a prisoner's body, tries to free Simon, but he refuses her help. During his time in prison, the Angel Raziel visits Simon and puts the Mark of Cain on him. This makes him unkillable, as anyone who tries to kill him will die seven times over. Simon escapes the Gard during a demon attack. He is then a target of suspicion from both Shadowhunters and Downworlders because of his powers.
The Truth About Sebastian and Jace's Heritage
Clary starts to suspect Sebastian. She notices he lacks empathy and is cruel. During a fight, she finds out Sebastian Verlac is not who he says he is. He is Jonathan Morgenstern, Valentine's true son and Clary's full brother, who was thought to be dead. Jonathan says he killed the real Sebastian Verlac and pretended to be him to get into the Shadowhunters. He admits he has demon blood, which makes him evil. Jonathan also says that Jace is not his brother or Valentine's son, but Stephen Herondale's son, a fact Valentine had kept secret for years.
Valentine's Attack and the Summoning of Raziel
Valentine attacks Alicante with a demon army to cause chaos and distract the Shadowhunters. His goal is to get the three Mortal Instruments — the Mortal Cup, the Mortal Sword, and the Mortal Mirror (which is Lake Lyn) — to summon the Angel Raziel. He plans to use Raziel's power to destroy all Downworlders and any Shadowhunters who oppose him, to 'cleanse' the world by his beliefs. The attack forces Shadowhunters and Downworlders to fight together, realizing they must unite against their enemy.
An Unholy Alliance and a Desperate Plan
As Valentine's demon army attacks Alicante, the Clave, led by Inquisitor Aldertree and then by interim Consul Malachi, must consider an alliance with the Downworlders. Luke Garroway, Clary's stepfather and a former Shadowhunter turned werewolf, helps make this truce. Werewolves, vampires, warlocks, and faeries join with the Shadowhunters, fighting in Alicante's streets. Clary realizes her rune-drawing abilities can protect the city. She creates protective runes on the city's defenses, helping them against the many demons.
Clary's Sacrifice and Raziel's Intervention
Valentine gets the Mortal Instruments at Lake Lyn and starts the ritual to summon the Angel Raziel. He kills Jace, thinking it will finish the sacrifice. Clary, who followed him, steps in as Raziel appears. Using her ability to create new runes, she changes the summoning ritual, taking control of Raziel's power. Instead of granting Valentine's wish to destroy the Downworlders, Raziel asks Clary for her wish. She wishes for Jace to come back to life and for Valentine to be destroyed. Raziel grants her wish, bringing Jace back and burning Valentine, ending his terror.
Aftermath and New Beginnings
With Valentine defeated, Shadowhunters and Downworlders begin to rebuild. Jace is alive, and the truth about his family — that he is a Herondale, not a Morgenstern — is finally out, removing the burden of incest from his relationship with Clary. Jocelyn Fray wakes from her coma, thanks to the 'Book of the White,' and is reunited with Clary and Luke. Simon is freed from prison. His Mark of Cain makes him respected and feared. The Clave, seeing the alliance was necessary, starts to think about better policies for Downworlders. The final scene shows Clary and Jace able to be together without the shadow of their presumed siblinghood.
Principal Figures
Clary Fray
The Protagonist
From a seemingly ordinary girl, Clary evolves into a powerful Shadowhunter who uses her unique gifts to save the world and rewrite the rules of angelic magic.
Jace Herondale
The Co-protagonist
Jace's arc involves coming to terms with his true heritage, accepting his love for Clary, and overcoming the psychological torment of his past.
Simon Lewis
The Supporting
Simon transitions from an ordinary human to a unique and powerful Daylighter vampire, gaining angelic protection and becoming a bridge between the human and supernatural worlds.
Valentine Morgenstern
The Antagonist
Valentine's arc culminates in his ultimate defeat and destruction, failing to achieve his genocidal vision.
Jonathan Morgenstern (Sebastian Verlac)
The Antagonist
Jonathan's arc reveals his true villainy and his role as Valentine's heir, culminating in his confrontation with Clary and Jace.
Alec Lightwood
The Supporting
Alec gains confidence in his identity and sexuality, publicly embracing his relationship with Magnus Bane.
Isabelle Lightwood
The Supporting
Isabelle continues to prove her strength and loyalty, supporting her family and friends through the war.
Magnus Bane
The Supporting
Magnus's relationship with Alec becomes public and solidified, challenging Shadowhunter prejudices.
Jocelyn Fray
The Supporting
Jocelyn awakens from her coma, reuniting with her daughter and facing the consequences of her past decisions.
Luke Garroway
The Supporting
Luke solidifies his role as a leader and a key figure in uniting Shadowhunters and Downworlders against a common enemy.
Themes & Insights
Identity and Self-Discovery
Identity is a main theme, especially for Clary and Jace. Clary deals with being a Shadowhunter, her powers, and her true parents. Jace struggles with thinking he is Valentine's son and Clary's brother, which causes him much pain and makes him question who he is. The discovery that Jace is a Herondale and Clary is Valentine's daughter changes how they see themselves and their place in the world. Simon also explores his identity as a Daylighter vampire, a rare being that makes him different from humans and other Downworlders.
““I am a Morgenstern. I am a Herondale. I am a Shadowhunter.””
Prejudice and Acceptance
'City of Glass' explores the old prejudice between Shadowhunters and Downworlders. The Clave's strict laws and distrust of supernatural beings are clear in Simon's imprisonment and the initial hesitation to form an alliance. However, Valentine's threat forces both sides to face their biases and see they must work together. Alec's journey to accept his sexuality and show his relationship with Magnus also shows acceptance within the Shadowhunter community, challenging old ways and helping a more open future.
““The Law is hard, but it is the Law.””
Family and Belonging
Family, both biological and chosen, is a strong theme. Clary's goal to save her mother drives much of the story. The truth about her parents and brother, Jonathan, shows the complex and dark history of the Morgenstern family. Jace's struggles with his perceived parents and his discovery of his true Herondale family redefine his sense of belonging. The Lightwood family's loyalty to each other, and the bond between Jace and Alec as parabatai, show the strength of chosen family. The novel redefines what family means, going beyond blood ties to include love and loyalty.
““We are all the children of the Clave.””
Love and Sacrifice
Love, both romantic and friendly, drives many characters' actions and leads to sacrifices. Clary and Jace's forbidden love, when they think they are siblings, causes them great pain. Still, they would sacrifice everything for each other. Simon's loyalty to Clary, despite his unreturned feelings, shows his selfless love. The biggest sacrifice is when Jace is killed by Valentine. Clary, driven by love, uses her power to bring him back, changing fate. This theme shows that love is a strong force, inspiring both heroism and pain.
““To love is to destroy.””
Power and Responsibility
The use and misuse of power are main parts of the story. Valentine uses power through manipulation, fear, and his demon army. He wants to force his extreme ideas on the world. Clary discovers and uses her angelic power to create runes, which helps her defeat Valentine and save the Shadow World. The results of power, like Simon's Mark of Cain, which makes him invulnerable but also an outsider, are explored. The Clave's job to protect the world, and their initial failure to adapt, shows how important it is to use power wisely and fairly.
““Power is always a double-edged sword.””
Plot Devices & Literary Techniques
The Mortal Instruments (Cup, Sword, Mirror)
Ancient artifacts central to Valentine's plan and the plot's resolution
These three angelic artifacts are the driving force behind Valentine's endgame. The Mortal Cup is used to create Shadowhunters, the Mortal Sword compels truth, and the Mortal Mirror is revealed to be Lake Lyn, where the summoning ritual for the Angel Raziel takes place. Valentine believes controlling them grants him the power to cleanse the world. Their significance is gradually unveiled throughout the series, with 'City of Glass' revealing their full power and purpose, leading directly to the climax as Valentine attempts to use all three to summon the Angel Raziel.
Clary's Rune-Drawing Ability
A unique angelic power that defies traditional Shadowhunter magic
Clary's ability to create entirely new runes, not just apply existing ones, is a unique angelic power inherited from her father's experiments and her mother's angelic lineage. This ability serves as a major plot device, allowing her to perform feats no other Shadowhunter can. She uses it to create portals, protective wards for Alicante, and most crucially, to alter the summoning ritual of the Angel Raziel, ultimately turning its power against Valentine. It highlights her special role and connection to the angelic realm, making her the key to stopping the antagonist.
The Parabatai Bond
A magical, unbreakable oath between two Shadowhunters
The parabatai bond, exemplified by Jace and Alec, is a magical connection between two Shadowhunters who fight as one. It allows them to share strength, sense each other's presence, and is meant to be an unbreakable oath. This device underscores themes of loyalty, brotherhood, and sacrifice. In 'City of Glass,' it intensifies Alec's emotional conflict regarding Jace and his love for Magnus, as a parabatai is forbidden from falling in love with their sworn partner. The bond is tested and reaffirmed through their shared experiences in the war, highlighting its depth and importance.
The Mark of Cain
An angelic protection bestowed upon Simon
The Mark of Cain is an ancient angelic protection bestowed upon Simon by the Angel Raziel while he is imprisoned. Anyone who attempts to harm Simon will die sevenfold. This plot device grants Simon invulnerability, making him a powerful, albeit cautious, asset in the fight against Valentine. It also serves to further isolate Simon, as both Shadowhunters and Downworlders fear his unique power. The Mark is a direct intervention of angelic power into the mortal world, signifying Simon's growing importance and unique status within the supernatural community, and directly impacts the outcome of several skirmishes.
The City of Glass (Alicante)
The ancestral, magically shielded home of the Shadowhunters
Alicante, the capital of Idris, is the ancestral home of the Shadowhunters, protected by powerful wards and ancient magic. As a setting, it acts as a central plot device, symbolizing the traditional, isolated nature of the Shadowhunter world. Clary's forbidden entry into the city and Valentine's subsequent attack on it force the Shadowhunters to confront their insular ways and consider alliances with Downworlders. The city's magical defenses and its vulnerability become key elements in the final battle, highlighting the clash between old traditions and the necessity of change.
Critical analysis
Notable Quotes
“It was books that made me feel that perhaps I was not completely alone.”
— Clary finds solace in books during her lonely and confusing life.
“You endure what is unbearable, and you bear it. That is all.”
— Alec offers advice on coping with difficult situations.
“There is no pretending, I love you, and I will love you until I die, and if there is life after that, I'll love you then.”
— Jace declares his unwavering love to Clary.
“The meek may inherit the earth, but at the moment it belongs to the conceited. Like me.”
— Jace displays his characteristic arrogance and wit.
“One must always be careful of books and what is inside them, for words have the power to change us.”
— A reflection on the transformative power of literature and knowledge.
“To love is to be vulnerable.”
— A simple yet profound observation about the nature of love.
“I am a man, and men do not consume pink beverages. Get thee gone, woman, and bring me something brown.”
— Jace humorously refuses a pink drink, showcasing his playful side.
“There is no pretending, I love you, and I will love you until I die, and if there is life after that, I'll love you then.”
— Jace expresses his eternal love for Clary.
“The world isn't divided into the good and the bad. We all have light and dark inside us.”
— A character reflects on the complexity of human nature.
“You are not the only one with secrets.”
— A reminder that everyone has hidden depths and pasts.
“Sometimes, the only way to move forward is to revisit the things in your past that were holding you back.”
— Advice on dealing with personal history and growth.
“I am a Shadowhunter. It is my duty to protect the world from demons.”
— A declaration of purpose and duty by a Shadowhunter.
“The past is a ghost, the future a dream, and all we ever have is now.”
— A philosophical reflection on time and living in the present.
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Key Questions (FAQ)
The novel follows Clary Fray as she travels to the Shadowhunter ancestral city of Alicante (the 'City of Glass') to save her mother Jocelyn, who is in a magically induced coma. Clary must navigate political tensions, uncover family secrets, and help unite Shadowhunters and Downworlders against the villain Valentine, who plans to use the Mortal Instruments to destroy all Shadowhunters.
About the author
Cassandra Clare is a celebrated author of young adult fantasy, best known for her bestselling Shadowhunters series, which includes "City of Ashes" and "Clockwork Prince." Her intricate world-building and complex characters have captivated millions of readers worldwide. Clare's work often blends magical elements with relatable coming-of-age themes.
