City of Bones

The Mortal Instruments - City of Bones

City of Bones is the first book in The Mortal Instruments series, a young adult urban fantasy series set in New York written by Cassandra Clare. 

The book is told on the perspective of Clary Fray, who then finds out that she is not what she thinks she is. In City of Bones, Clary found out that she is a Shadow Hunter and that her mother did not tell her about it for her safety. Here is the plot of the story from Wikipedia.org.

  
Clary Fray and Simon Lewis are at a club where Clary witnesses a murder by a group of teens. She is shocked that Simon and the club's security guard cannot see the killer—a boy called Jace, who claims that the boy he murdered was a demon. Jace was joined by her adoptive sister Isabelle and adopted brother Alec. The next day, Jace offers to take Clary to meet his tutor, but before she can do so, she receives a distressing phone call from her mother. She returns home to find her mother missing, the apartment trashed, and a monstrous creature, a Ravener demon, lying in wait for her. She defeats the creature by shoving Jace’s Sensor down its throat, but is injured in the process, and Jace takes her to his home. His home is called "The Institute", an old gothic cathedral in New York that humans, or mundanes, can't see, because it is concealed magically by glamour. Here, she recuperates. She also meets Hodge Starkweather, Jace's tutor, as well as his adoptive-siblings Isabelle and Alec Lightwood.

Hodge then acquires the help of a monk with magical powers, called a "Silent Brother", Jeremiah, to discover how Clary is able to see Shadowhunters and why she was attacked. Jeremiah discovers a block on Clary's mind, and takes her and Jace to the City of Bones, where the Silent Brothers attempt to break it. Although the attempt fails, Clary discovers flashes of information, particularly the name Magnus Bane, which, with Isabelle's help, Clary traces Magnus Bane to a party, which she attends with Jace, Simon, Alec and Isabelle. There, they discover that Magnus is the High Warlock of Brooklyn, and he placed the block on Clary, although his attempts to help her remember are unhelpful. During the party, Simon is turned into a rat by a faerie drink, and Jace and Clary go to a vampire-infested hotel to rescue Simon who has been taken home by a vampire.
Clary and Jace are helped into the hotel by a teenager named Raphael. He then betrays them and reveals that he is the leader of the vampire coven that are residing inside that hotel, and soon Clary and Jace are fighting for their lives. They are saved by werewolves who claim they want Clary, but Clary and Jace escape and rescue Simon but get injured in the process.

At the institute Clary and Alec have a fight. Jace takes Clary to the Institutes garden where they kiss. Clary realizes where the Mortal Cup is and she, Jace, Isabelle, Alec, and Simon go and retrieve it. Alec gets injured by a greater demon and nearly dies, but Magnus Bane heals him at the Institute. When Clary and Jace give the Mortal Cup to Hodge, he reveals he's working for a man named Valentine who is meant to be dead. Valentine takes Jace. Clary goes after Hodge, but is kidnapped. When Clary wakes up she finds out Luke took her but for her own safety. Clary finds out Valentine's her father, and Luke and Clary track down Jace and Valentine. Luke and his werewolf pack raid Valentine's lair, but they are ambushed.

During the attack, Luke and Clary get inside, and while Luke is distracted, Clary finds Valentine and Jace. Valentine reveals that he is also Jace's father, making them siblings. Luke then returns to fight Valentine, with Jace's help, but Valentine escapes to Idris, where he has hidden the Cup. Clary retrieves her mother, who is in a coma, and takes her to a hospital. In the meantime, Alec has been healed by Magnus Bane. Clary and Jace meet at the Institute and express their frustration that they cannot be together forever like they once believed.
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