The Mortal Instruments: City of Bones; City of Ashes; City of Glass; City of Fallen Angels by Cassandra Clare (Paperback) The first four books in the 1 New York Times bestselling Mortal Instruments series, now available in a collectible paperback boxed set. Enter the secret world of the Shadowhunters with this handsomely packaged boxed set that includes City of Bones, City of Ashes, City of Glass, and City of Fallen Angels. The Mortal Instruments books have more than five million copies in print, and this collectible set of the first four volumes in paperback makes a great gift for newcomers to the series and for loyal fans alike.