Amazon.com description: Product Description: FOR USE IN SCHOOLS AND LIBRARIES ONLY. In search of a potion for her dying mother, Clary sneaks into the City of Glass and is immediately caught up in a life-and-death battle. As the children of the Moon (werewolves), Night (vampires), and Faerie gather for a war that will rend the heavens, Clary calls upon her untrained powers to control an angel who will save or destroy them all. Readers should be familiar with the first two installments in the Mortal Instruments series, but there is nevertheless plenty of romance, loss, honor, and betrayal to make the journey worthwhile. An experienced storyteller, Clare moves the plot quickly to a satisfying end.