Clockwork Angel

This is a great book! If you like the Mortal Instruments Series, you will love this book! It is a prequel to The City of Bones, Ashes, and Glass, so if you haven't read those books, I would read them before you read this book.
From Goodreads.com, is a short explaination of the book:
"When 16 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 gaslight streets. Only the Shadowhunters, warriors dedicated to ridding the world of demons, keep order amidst the chaos........Tessa realizes that she may 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." 
I read it less than 3 days, and can't wait till the next one comes out!