Clockwork Angel by Cassandra Clare
When sixteen-year-old Tessa Gray crosses the ocean to find her brother, her destination is England, the time is the reign of Queen Victoria, and something terrifying is waiting for her in London's Downworld, where vampires, warlocks and other supernatural folk stalk the gaslit streets. Only the Shadowhunters, warriors dedicated to ridding the world of demons, keep order amidst the chaos.
Kidnapped by the mysterious Dark Sisters, members of a secret organization called The Pandemonium Club, Tessa soon learns that she herself is a Downworlder with a rare ability: the power to transform, at will, into another person. What's more, the Magister, the shadowy figure who runs the Club, will stop at nothing to claim Tessa's power for his own.
Friendless and hunted, Tessa takes refuge with the Shadowhunters of the London Institute, who swear to find her brother if she will use her power to help them. She soon finds herself fascinated by—and torn between—two best friends: Jem, whose fragile beauty hides a deadly secret, and blue-eyed Will, whose caustic wit and volatile moods keep everyone in his life at arm's length...everyone, that is, but Tessa.
As their search draws them deep into the heart of an arcane plot that threatens to destroy the Shadowhunters, Tessa realizes that she may need to choose between saving her brother and helping her new friends save the world...and that love may be the most dangerous magic of all.
Once upon a time I was a little girl who disappeared.
Once upon a time my name was not Alice.
Once upon a time I didn't know how lucky I was.
When Alice was ten, Ray took her away from her family, her friends -- her life. She learned to give up all power, to endure all pain. She waited for the nightmare to be over.
Now Alice is fifteen and Ray still has her, but he speaks more and more of her death. He does not know it is what she longs for. She does not know he has something more terrifying than death in mind for her.
This is Alice's story. It is one you have never heard, and one you will never, ever forget.
After siphoning her own blood magic in the showdown at Hubal, Opal Cowan has lost her powers. She can no longer create glass magic. More, she's immune to the effects of magic. Opal is now an outsider looking in, spying through the glass on those with the powers she once had, powers that make a difference in the world. Until spying through the glass becomes her new power. Suddenly, the beautiful pieces she makes flash in the presence of magic. And then she discovers that someone has st olen some of her blood--and that finding it might let her regain her powers. Or learn if they're lost forever...