From amazon.com:

Is love worth betraying everything? Plunge into the second adventure in the internationally bestselling Mortal Instruments series and “prepare to be hooked” (Entertainment Weekly).

Clary Fray just wishes that her life would go back to normal. But what's normal when you're a demon-slaying Shadowhunter, your mother is in a magically induced coma, and you can suddenly see Downworlders like werewolves, vampires, and faeries? If Clary left the world of the Shadowhunters behind, it would mean more time with her best friend, Simon, who's becoming more than a friend. But the Shadowhunting world isn't ready to let her go -- especially her handsome, infuriating, newfound brother, Jace. And Clary's only chance to help her mother is to track down rogue Shadowhunter Valentine, who is probably insane, certainly evil—and also her father.

To complicate matters, someone in New York City is murdering Downworlder children. Is Valentine behind the killings—and if he is, what is he trying to do? When the second of the Mortal Instruments, the Soul-Sword, is stolen, the terrifying Inquisitor arrives to investigate and zooms right in on Jace. How can Clary stop Valentine if Jace is willing to betray everything he believes in to help their father?

In this breathtaking sequel to City of Bones, Cassandra Clare lures her readers back into the dark grip of New York City's Downworld, where love is never safe and power becomes the deadliest temptation.

From amazon.com:

Discover this first installment of the internationally bestselling Mortal Instruments series and “prepare to be hooked” (Entertainment Weekly).

When fifteen-year-old Clary Fray heads out to the Pandemonium Club in New York City, she hardly expects to witness a murder -- much less a murder committed by three teenagers covered with strange tattoos and brandishing bizarre weapons. Then the body disappears into thin air. It's hard to call the police when the murderers are invisible to everyone else and when there is nothing -- not even a smear of blood -- to show that a boy has died. Or was he a boy?

This is Clary's first meeting with the Shadowhunters, warriors dedicated to ridding the earth of demons. It's also her first encounter with Jace, a Shadowhunter who looks a little like an angel and acts a lot like a jerk. Within twenty-four hours Clary is pulled into Jace's world with a vengeance, when her mother disappears and Clary herself is attacked by a demon. But why would demons be interested in ordinary mundanes like Clary and her mother? And how did Clary suddenly get the Sight? The Shadowhunters would like to know...

Exotic and gritty, exhilarating and utterly gripping, Cassandra Clare's ferociously entertaining fantasy takes readers on a wild ride that they will never want to end.

From amazon.com:

Love is a mortal sin, and the secrets of the past are deadly. Plunge into the third installment in the internationally bestselling Mortal Instruments series and “prepare to be hooked” (Entertainment Weekly).

To save her mother’s life, Clary must travel to the City of Glass, the ancestral home of the Shadowhunters—never mind that entering the city without permission is against the Law, and breaking the Law could mean death. To make things worse, she learns that Jace does not want her there, and Simon has been thrown in prison by the Shadowhunters, who are deeply suspicious of a vampire who can withstand sunlight.

As Clary uncovers more about her family’s past, she finds an ally in mysterious Shadowhunter Sebastian. With Valentine mustering the full force of his power to destroy all Shadowhunters forever, their only chance to defeat him is to fight alongside their eternal enemies. But can Downworlders and Shadowhunters put aside their hatred to work together? While Jace realizes exactly how much he’s willing to risk for Clary, can she harness her newfound powers to help save the Glass City—whatever the cost?

Love is a mortal sin and the secrets of the past prove deadly as Clary and Jace face down Valentine in the third installment of bestselling series the Mortal Instruments.

Includes an exclusive sneak peek of the fourth book in the Mortal Instruments series: City of Fallen Angels! And don't miss the teaser from Clockwork Angel, the first book in the Infernal Devices trilogy, the prequel to the Mortal Instruments series.