Events take place directly after where the story in City of Bones finished. The story is told in third person and mostly from the perspective of Clary, including her confusion over her relationship with her new found brother and her feelings for Simon.
Clary Fray starts to wish for her life to go back to normal.[2] But her life is far from it as a demon-slaying Shadowhunter.
The story starts with a brief scene of Valentine who has paid a warlock to summon the Demon of Fear who kills the warlock. Valentine raised the Mortal Cup which gives him absolute power over the Greater Demon. Then it cuts to Clary whose mother still hasn't woken up, and she is living at Luke's house. Simon get sick, which makes Clary startled and then he kisses her in the kitchen, and later calls her his girlfriend. Jace is sent from home by Alec's parents. He goes to a bar and picks a fight with a werewolf pack, after it is revealed that there was a were child slain in the alley way. Jace was asked to help, and he had seemed indifferent of the situation, causing the pack to attack. Luke later saves him and calls Clary. The three of them go to the Institute and confront Alec's mother (Maryse) who explains that the Inquisitor is coming to talk with Jace and she was trying to spare him. Clary goes back home to Luke's with Simon and he stays over. She gets up to go fix herself up in the bathroom when she received a text message from Isabelle. When the Inquisitor arrived to Institute, Jace, using his so-called charm, angers the Inquisitor and she locks him in the Silent City. That night, sitting in the cell of the Silent City, Jace hears the screams of the Silent Brothers as something is attacking everyone. He finds out that Valentine kills the Silent Brothers to get the Soul-Sword (Second of the Mortal Instruments). Clary comes to the Institute where Isabelle and Alec explain that Jace was thrown in the prison. A distress call goes out to the Institute from the Silent City, but the adult Shadowhunters were called to the park where a Faerie Child was killed and were not available at the moment. Isabelle and Alec decide to go find Jace and Clary tags along to go to save Jace, since she is the only person who knows the entrance. They discover all of the brothers have been killed, locate Jace, and when they emerge, they look a group of shadowhunters (including Maryse and the Inquisitor). The Inquisitor believes that Jace might have had a hand in the killing because the Soul-Sword is the only instrument to use against the Shadowhunter to prove if he is lying or telling the truth. Then Magnus Bane appears offering his apparment to take Jace as a prisoner. Later on, Alec, Clary and Simon goes to Magnus' apartment to visit Jace and found out about Valentine's possible plans
They go to The Faerie Realm and Clary was told to stay as she was tricked into taking fairy food. However, the Seelie Queen said that "the kiss the girl most desires" will allow Clary to leave, leading Clary to kiss Jace in front of the whole Court. Simon storms off when they leave the realm. Clary, Jace and Isabelle go back to the Institution taking advantage that no one is in there. Clary and Jace have a fight about each other feelings and the fact that they are siblings in Jace's room. Later Raphael shows up at the Institute with Simon dying in his arms, with the only choice left for him to become a vampire...
Español
Clary Fray desearía que su vida volviera a la normalidad. Si pudiera dejar atrás el mundo de los cazadores de sombras, tendría más tiempo para Simon, su mejor amigo, que se está convirtiendo en algo más... Pero el mundo subterráneo que acaba de descubrir no está preparado para dejarla ir; en especial ese apuesto y exasperante Jace el cual supuestamente.es su hermano y no la qiere fuera de su vida. Para complicar las cosas, una ola de asesinatos sacude la ciudad. Clary cree que Valentine está detrás de esas muertes para obtener la Espada Mortal, los cazadores de sombras son invitados a la corte de las Hadas, donde la Reina Seelie provoca una escena donde Jace y Clary tienen que besarse para poder liberar a Clary de la Corte, que perturba a Simon y este huye de de ellos que al final termina comertido en Vampiro....Descubriendo nuevos y asombrosos secretos, en esta soberbia secuela de Ciudad de Hueso, Cassandra Clare arrastra de nuevo a sus lectores a las siniestras garras del Submundo de Nueva York, donde el amor jamás está a salvo y el poder se convierte en la tentación más letal.