The Mortal Instruments Series, Book 6
Note: This is the last book in a series. If you haven't jumped onto the Shadowhunter train yet, get your butt on it. I'd recommend not reading the stuff below if you're unfamiliar with the series...
Description (taken from Goodreads):
In this dazzling and long-awaited conclusion to the acclaimed Mortal Instruments series, Clary and her friends fight the greatest evil they have ever faced: Clary's own brother.
Sebastian Morgenstern is on the move, systematically turning Shadowhunter against Shadowhunter. Bearing the Infernal Cup, he transforms Shadowhunters into creatures out of nightmare, tearing apart families and lovers as the ranks of his Endarkened army swell.
The embattled Shadowhunters withdraw to Idris - but not even the famed demon towers of Alicante can keep Sebastian at bay. And with the Nephilim trapped in Idris, who will guard the world against demons?
When one of the greatest betrayals the Nephilim have ever known is revealed, Clary, Jace, Isabelle, Simon, and Alec must flee - even if their journey takes them deep into the demon realms, where no Shadowhunter has set foot before, and from which no human being has ever returned...
Love will be sacrificed and lives lost in the terrible battle for the fate of the word in the thrilling final installment of the classic urban fantasy series The Mortal Instruments!
Sebastian is going to destroy the Shadowhunter society by turning them against each other. Using the Infernal Cup, he takes away their will and souls turning them into a fighting army that reports to him. But when Sebastian's plans come to fruition, he decides it's not enough. He has a different goal in mind.
Clary has just survived a battle between her brother and the Endarkened. When the Clave deems Sebastian and his army a small threat, Clary finds herself battling against the Clave to get them to understand the seriousness. But with the small steps taken forward in regards to Downworlder relations, we find everyone running backwards to their old prejudices. But Clary's going to do her hardest to bring peace to the Shadowhunters and Downworlders.
The last book in a series, and it was huge (~725 pages). We've got some fighting, some love stories, some paranormal species, and learning moments. I was so excited to read this last book, and I plowed right through it. And while I loved the story, I hated to see it end. And I felt like the ending wasn't enough of a bang for me (I might be a little too hard on last -books-in-a-series). But that shouldn't stop anyone from reading these books. They're good.
For anyone unfamiliar to Cassandra Clare, I highly recommend you read her books in the order they were published. And keep going even if you're not quite sold on City of Bones. My favorite books were from The Infernal Devices series. But you need both series to get the whole story. (By the way, having stories from the other series tie into this one was sweet!!)